Qdos CWT: The Next Level in High-Performance Chemical Metering
At Bobcat Industrial Air Services in Nashville, TN, we are proud to offer the next generation in chemical metering technology: Qdos CWT. This advanced pump, featuring Conveying Wave Technology™ (CWT), delivers all the benefits of a peristaltic pump while significantly extending service life beyond traditional tube designs.
Precision and Safety in Chemical Metering
The Qdos CWT pump is engineered for superior accuracy in chemical dosing applications, eliminating the need for expensive ancillary equipment. Its innovative sealed pumphead minimizes operator exposure to chemicals and allows for quick, safe replacement in under a minute.
Key Features & Benefits:
Flow rates up to 500 ml/min at 9 bar
Extended service life under high-pressure conditions
Reliable, low-maintenance metering
Advancement of the industry-leading Qdos series
Built on Proven Qdos Technology
The Qdos CWT is designed using the established Qdos drive technology, ensuring compatibility with a wide range of communication and connection options. Operator and environmental safety are top priorities, with built-in features such as:
✔ Sealed pumphead for complete chemical containment
✔ Leak detection software for enhanced reliability
✔ Failure alarm capabilities for proactive maintenance
Unmatched Performance in Water Treatment
Qdos CWT pumps provide exceptional chemical dosing accuracy for sustainable water treatment applications. Unlike traditional pumps, they do not suffer from vapor locking, ensuring precise dosing of chemicals like sodium hypochlorite without overuse.
Additionally, the pump operates efficiently despite variations in ambient temperature or pressure, ensuring long service life and reduced operating costs.
The Power of Conveying Wave Technology™
Qdos CWT utilizes the peristaltic pumping principle but replaces a conventional tube with an EPDM element operating against a PEEK track. This low-stress design significantly increases service life, making it an ideal choice for industrial applications.
Key Advantages of CWT Technology:
✔ No gas locking issues
✔ Stable performance despite temperature and pressure fluctuations
✔ Mechanical restitution for consistently high accuracy throughout pump life
At Bobcat Industrial Air Services, we understand the importance of efficiency, reliability, and safety in chemical metering. The Qdos CWT pump is a game-changer, offering unmatched performance and cost-effectiveness for industrial applications.
Contact us today to learn more about integrating Qdos CWT technology into your operations!
Rotech - Progressive Cavity Pumps
Rotech Progressive Cavity Pumps are designed to use for Food & Beverages, Pharmaceuticals, Chemicals, Oil & gas and Many more for their various applications. The main components which characterize the pump are metallic single helical rotor and fixed double helical polymer resistant part Stator in which the rotor turns and thereby a complex progressive sealing line is maintained. While the rotor rotates inside the stator, the cavities formed between them progresses from suction to discharged end, gently carrying the media.
Product Specification
Positive Displacement: Progressing cavities deliver a uniform, metered and non-pulsating flow. The head developed is independent, and flow rate proportion to the rotational speed.
Self-Priming: Can work on more i.e. handles high percentage of air with liquid and do not required fool valves.
Non-Clogging: Can handle solids in suspension or media containing high percentage of solids.
Low Internal Velocity: minimum degradation of shear-sensitive media and can handle highly viscous pseudo-plastic materials,
NPSH Requirements: Suction lift capacity up to 9.5 MWC and effective even in high vacuum conditions.
Reversible: Suction and Delivery ends can be interchanged by manly changing the direction of ration of the pump.
Industries to be served
Sewage
Effluent & Water Sugar,
Distillery & Brewery
Paper, Pulp & Cellulose
Ceramics & Refractories
Bulk Explosives & Emulsions Chemicals
Construction
Engineering
Fertilizer
Marine Mining
Man-made Fiber
Oil & gas
Paint & Varnish
Ship Building Industries
Tips for Custom Vacuum Pump Design
For many applications, a custom vacuum pump design is the best way to get a fit-for-purpose solution that improves efficiency and doesn’t compromise on features. However, the customization is only worthwhile if it meets your specific needs.
Half of a successful design comes from working with an expert pump supplier, and the other half comes from your active participation in the design process. This style of partnership minimizes wasted time and money and maximizes the value of the final unit.
The process begins with your reason for seeking a unique solution.
Why get a custom vacuum pump design?
There are numerous reasons for customizing a vacuum pump. Whatever the specifics, behind every custom design, there should be an overarching business goal. Half of a successful design comes from working with an expert pump supplier, and the other half comes from your active participation in the design process.
Here are some common motivations for engaging a custom pump supplier.
One size doesn’t fit all
Using standard parts with specialized processes makes it nearly impossible to realize the highest efficiency and functionality. When it comes to a proprietary technique or advanced process, vacuum pump components that aren’t fit-for-purpose may limit performance.
Customization lets you realize the ideal design to support superior results.
Adapt to customer demands
As technology advances, customers are demanding better performance. It’s possible to lose business to a more agile competitor if your product doesn’t exceed expectations.
A tailored approach solves complex or situation-specific requirements. For example, this CNC manufacturer partnered with Becker Pumps, creating a custom vacuum pump design as a “drop-in” solution.
Seize a competitive advantage
Using the same components as the competition makes it difficult to differentiate your products in a crowded marketplace.
Developing a fit-for-purpose, custom vacuum pump design with advanced features and capabilities helps you fulfill opportunities where others cannot, making you the vendor of choice for select applications.
Examples of Custom Vacuum Pump Design
Healthcare – central medical/surgical vacuum systems, mobile vacuum systems.
Manufacturing – forming shaped plastics, additive manufacturing.
Material handling – holding, lifting, and moving products, pick and place.
Packaging – primary, secondary, tertiary.
Woodworking – wood drying and veneering, creating suction to aid with CNC work
Typical components involved in custom design:
Motor starters
External inlet filters
Check valves
Gauges
Sound abatement
Receiver tanks
Air/water (liquid) separators
Three Tips for a Successful Custom Design
Working with a vacuum pump supplier to create a custom unit is a team effort. It involves thorough consideration of the factors that go into a successful product while balancing reliability, functionality, cost, and efficiency.
Here are a few tips for developing a custom vacuum pump design.
1. Confirm performance specifics
Verifying the vacuum pump’s specifics up-front sets the stage for success. As the requester of a custom unit, you’ll want to convey your unique specifications to the supplier. This includes performance details, such as the unit’s capacity and the type of environment the pump will encounter.
Identifying the gas or vapor coming back to the pump is critical, as certain units can tolerate vapor in their chamber better than others. With particulates, like dust or wood chips, the supplier may need to consider an external filter to protect the pump from damage.
2. Know the physical limitations of your process
A custom-built unit should solve problems, not create them. Describing how you want the vacuum pump to contribute to your process will help the supplier design a unit that fits seamlessly into your existing operations.
Consider this; a lengthy pipe run leading to the vacuum pump may call for an external check valve, or space constraints may require modifications to the pump’s cover. Addressing operational realities during the design stage is far easier than making changes later.
3. Choose a supplier with a great reputation
Successful vacuum pump design has a lot to do with choosing the right pump supplier. The best suppliers have a wealth of industry experience and will listen closely and work together with you to develop a tailored design.
Ask for examples of the supplier’s previous work and talk to them about meeting your goals for the custom design. If they’re serious about custom work, they’ll be able to explain their process in detail.
Reliable Custom Vacuum Pump Design By Becker Pumps
We’re committed to customer satisfaction. To exceed your expectations, our dedicated in-house custom design team draws on their vast experience—we’ve engineered reliable vacuum pump solutions for a range of industries.
By collaborating with expert partners within the industry, we create unique solutions that you won’t find anywhere else.
Unibloc® Pumps - Sanitary PD Pumps
At Bobcat Industrial Air Services, we proudly offer Unibloc® Pump, the industry leader in premium sanitary positive displacement pumps designed for pharmaceutical, meat and poultry, food and beverage, dairy, brewery, tanker truck fleets, and more.
When uptime matters, Unibloc® pumps deliver unmatched performance, durability, and hygiene, ensuring your operations run smoothly with minimal maintenance and maximum efficiency.
Why Choose Unibloc® Pumps?
🔹 Industry-Leading Innovation – Designed for precision and reliability, Unibloc® pumps are engineered to handle the most sanitary and demanding applications.
🔹 Lobe & Gear Pump Solutions – Offering high-performance pumping with smooth, consistent flow.
🔹 Superior Sanitation – Built with stainless steel and crevice-free designs to prevent contamination and ensure compliance with strict hygiene standards.
🔹 Comprehensive Product Line – Featuring innovative strainers, valves, sight glasses, and more for a complete sanitary processing system.
🔹 Reduced Downtime – Unibloc® pumps are built for efficiency and easy maintenance, minimizing unexpected failures and costly interruptions.
Unibloc® Pump Applications
✔ Pharmaceutical – Ensures precision, sterility, and compliance for sensitive medical and biotech applications.
✔ Meat & Poultry Processing – Handles high-viscosity and protein-rich fluids with ease.
✔ Food & Beverage – Provides consistent flow for sauces, syrups, dairy, and beverage production.
✔ Dairy Processing – Ideal for milk, cream, yogurt, and cheese manufacturing.
✔ Brewery & Distillery – Maintains flavor integrity in beer, spirits, and fermentation processes.
✔ Tanker Truck Fleets – Durable, high-performance pumps for mobile liquid transport applications.
Upgrade Your Pumping System with Bobcat Industrial Air Services
At Bobcat Industrial Air Services, we provide expert guidance, installation, and maintenance for Unibloc® sanitary pumps, ensuring your operation stays efficient, reliable, and compliant.
📞 Contact us today to learn how Unibloc® pumps can optimize your process and reduce downtime!
SPU/SXU High Head Trash Pumps
At Bobcat Industrial Air Services, we provide high-performance self-priming pumps, including the SPU/SXU Series—designed for economical, trouble-free operation in solid-handling sewage and slurry applications. These pumps are interchangeable with other OEM trash pumps, making them a drop-in replacement for existing systems.
Why Choose SPU/SXU Self-Priming Trash Pumps?
✔ Self-Priming Design – No need for external priming; these pumps automatically re-prime even with a dry suction line.
✔ Large Volume Pump Casing – Allows the pump to handle solids-laden liquids and slurries without requiring suction or discharge check valves.
✔ Handles Large Solids – Capable of handling spherical solids up to 1.75” (45mm), depending on the model.
✔ Easy Maintenance & Repair – The rotating assembly can be removed without disturbing the pump casing or pipelines, making servicing quick and efficient.
✔ External Clearance Adjustments – The O-Ring sealed rotating assembly allows for easy external clearance adjustments, extending pump life and maintaining efficiency.
Applications of SPU/SXU Trash Pumps
🔹 Sewage & Wastewater Treatment – Handles solids-heavy fluids for municipal and industrial applications.
🔹 Slurry & Mining Operations – Efficiently moves abrasive, high-solids materials.
🔹 Construction Dewatering – Ideal for pumping out sludge and debris-filled water.
🔹 Industrial Processing – Used in manufacturing processes requiring the removal of heavy particulate fluids.
Upgrade Your Trash Pump System with Bobcat Industrial Air Services
The SPU/SXU Series offers an efficient, durable, and low-maintenance solution for challenging pumping applications. If you're looking for a reliable, direct OEM replacement, Bobcat Industrial Air Services can help you find the perfect fit.
📞 Contact us today to discuss your pump needs and ensure maximum efficiency in your operations!
Qdos H-FLO: chemical metering and dosing pump
The latest pump in the Qdos® range, Qdos H-FLO is designed specifically for higher flow rates up to 600 L/hr. Delivering the same accuracy and reliability as other Qdos metering and dosing pumps. Qdos H-FLO pumps offer long maintenance intervals - reducing the impact of process downtime and lowering the overall cost of ownership.
Acid Pumps: Types, Benefits & Uses
Acid pumps are critical components in industrial applications where they safely and efficiently transport corrosive liquids and liquids containing abrasive solids. At Bobcat Industrial Air Services in Nashville, TN, we provide high-performance acid pumps designed to handle the toughest chemical environments. This guide will help you understand how acid pumps work, their different types, and their key benefits and limitations.
What Are Acid Pumps?
Acid pumps are designed to handle highly corrosive and abrasive liquids that would quickly damage standard pumps. These pumps are constructed using chemically resistant materials such as stainless steel, duplex steels, or engineered polymers to ensure durability and safe operation. The choice of material depends on the type of acid, its concentration, and temperature requirements.
How Do Acid Pumps Work?
The mechanism of operation varies depending on the type of acid pump used. Below are two common types and their working principles:
1. Air-Operated Double Diaphragm (AODD) Pumps
🔹 Utilize two flexible diaphragms separated by a chamber filled with the acidic liquid.
🔹 Compressed air alternately pushes each diaphragm, creating suction and expelling liquid in a pulsing motion.
🔹 No direct contact between diaphragms and liquid, minimizing leaks and contamination.
🔹 Best for shear-sensitive, abrasive, and highly viscous liquids.
2. Centrifugal Pumps
🔹 Use a rotating impeller to generate centrifugal force, pushing liquid outward under pressure.
🔹 Provide high flow rates but are less suitable for viscous acids or liquids with solids.
🔹 Require corrosion-resistant materials to withstand chemical exposure.
Additional Factors Affecting Acid Pump Selection
✅ Flow rate and pressure requirements – Determine pump size and type.
✅ Liquid viscosity and abrasiveness – Certain pumps perform better with specific liquids.
✅ Temperature tolerance – Some pumps handle high temperatures better than others.
✅ Safety considerations – Explosion-proof models may be required in hazardous environments.
Selecting the right acid pump is critical to maintaining operational efficiency and safety. Consulting an expert at Bobcat Industrial Air Services can ensure you choose the most reliable pump for your needs.
Types of Acid Pumps
Different industrial applications require specific types of acid pumps based on their chemical compatibility, flow rates, and operational requirements. Here are the most common types:
1. Centrifugal Pumps
🔹 Best for: Low- to medium-viscosity acids, high flow rates.
🔹 How it works: A rotating impeller flings liquid outward, creating pressure.
🔹 Limitations: Not ideal for highly viscous acids or abrasive solids.
2. Air-Operated Double Diaphragm (AODD) Pumps
🔹 Best for: Highly viscous acids, shear-sensitive liquids, and self-priming applications.
🔹 How it works: Compressed air pushes flexible diaphragms to move liquid.
🔹 Limitations: Pulsating flow, lower flow rates than centrifugal pumps.
3. Gear Pumps
🔹 Best for: High-viscosity acids, precise metering applications.
🔹 How it works: Two intermeshing gears create suction to move liquid.
🔹 Limitations: Lower flow rates and higher cost.
4. Peristaltic Pumps
🔹 Best for: Shear-sensitive liquids, slurries, and metering applications.
🔹 How it works: A roller squeezes a flexible tube, creating suction to move liquid.
🔹 Limitations: Lower flow rates, limited pressure capacity.
5. Magnetic Drive Pumps
🔹 Best for: Hazardous or toxic acids, volatile liquids, and strict leak-prevention environments.
🔹 How it works: A magnetic coupling rotates the impeller, eliminating the need for a shaft seal.
🔹 Limitations: Higher cost compared to other pumps.
6. Metering Pumps
🔹 Best for: Precise dosing applications, chemical feed, and laboratory use.
🔹 How it works: Precisely delivers small liquid volumes for accurate metering.
🔹 Limitations: Lower flow rates and higher cost.
Benefits and Limitations of Acid Pumps
✅ Key Benefits:
✔ Efficient and reliable operation for corrosive applications.
✔ Prevents contamination through chemical-resistant materials and leak-proof designs.
✔ Reduces downtime by preventing pump failures caused by corrosion.
✔ Enhances safety by handling hazardous chemicals without leaks.
⚠ Limitations to Consider:
❌ Higher cost compared to standard industrial pumps.
❌ Limited pressure and flow rate capabilities depending on pump type.
❌ Requires regular maintenance to ensure optimal performance and longevity.
Choosing the Right Acid Pump for Your Application
When selecting an acid pump, consider the specific requirements of your industrial process:
🔹 What type of acid or corrosive liquid is being pumped?
🔹 What are the required flow rate and pressure conditions?
🔹 Is the liquid highly viscous, shear-sensitive, or abrasive?
🔹 Are there special safety or temperature considerations?
At Bobcat Industrial Air Services, we provide expert guidance and high-quality acid pumps tailored to your industrial needs. Whether you're looking for corrosion-resistant centrifugal pumps, precision metering pumps, or AODD pumps for viscous applications, we can help you find the right solution.
Conclusion: Invest in the Right Acid Pump for Long-Term Performance
Acid pumps are vital to industries dealing with corrosive and abrasive fluids. Understanding the different types, their benefits, and limitations will help you select the best pump for efficiency, reliability, and safety.
At Bobcat Industrial Air Services in Nashville, TN, we specialize in high-performance industrial pump solutions. Contact us today to discuss your acid pump requirements and let our experts help you find the best equipment for your application.
📞 Call us now to get started!
SFP Series Frame Mounted Pumps
SFP Series Frame Mounted Pumps: Designed for water, wastewater, and light slurry liquids. Self-priming, compact, and easy to install. Perfect for industrial, agricultural, and transfer pump needs. Learn more: https://www.rotechpumps.com/.../sfp-series-frame-mounted.../
Self-Priming Trash Pumps
At Bobcat Industrial Air Services, we provide reliable and efficient self-priming pumps designed to handle high-solids liquids, slurries, and corrosive materials. Our self-priming trash pumps and centrifugal pumps are ideal for industries requiring robust performance, easy maintenance, and long-term durability.
Self-Priming Trash Pumps for Heavy-Duty Solids Handling
Our self-priming trash pumps are built to tackle demanding applications in:
✔ Sewage pumping & wastewater treatment – Effectively handles high solids content.
✔ Dewatering & mining operations – Pumps abrasive and debris-laden water.
✔ Slurry pumping – Moves thick, sediment-heavy fluids with ease.
✔ Construction & industrial drainage – Designed for high-volume, continuous-duty use.
🔹 Key Features:
Built-in self-priming mechanism eliminates the need for external priming.
Rugged construction ensures durability in harsh environments.
Handles high-solids content efficiently without clogging.
Quick-access design for fast maintenance and reduced downtime.
Self-Priming Centrifugal Pumps for Process Industries
For industries needing corrosion-resistant, high-performance fluid transfer, we offer self-priming process centrifugal pumps for:
✔ Chemical processing – Resistant to aggressive fluids and harsh chemicals.
✔ Food & beverage production – Hygienic designs for safe and efficient processing.
✔ Pharmaceutical applications – Precision engineering for high-purity applications.
✔ Agriculture & irrigation – Moves water efficiently for farming and irrigation systems.
🔹 Key Features:
Corrosion-resistant materials for long-lasting durability.
Self-priming capability for continuous operation in various applications.
Engineered for easy maintenance and cost-effective performance.
Handles viscous materials and variable liquid levels effortlessly.
Why Choose Bobcat Industrial Air Services for Your Pumping Needs?
✔ Industry Expertise – We understand your needs and provide the right solutions.
✔ Customer-Centric Approach – Our team offers customization options, expert guidance, and after-sales support.
✔ Competitive Pricing – High-quality pumps at cost-effective prices.
✔ Reliable Technical Assistance – Get expert recommendations, maintenance tips, and troubleshooting support.
📞 Need assistance finding the right pump? Contact us today for expert guidance!
How to Choose a Vacuum Pump
Selecting the right vacuum pump for your operation is critical to efficiency, cost savings, and minimizing downtime. Whether you're in secondary packaging, thermoforming, CNC routing, printing, composites, or another vacuum-reliant industry, choosing the right pump reduces maintenance costs and energy consumption while maximizing performance.
With so many vacuum pump technologies available, how do you make the best choice? Here’s a comprehensive guide to help you find the right vacuum solution for your needs.
Understanding Your Application’s Vacuum Needs
The first step in selecting a vacuum pump is understanding how and why you need vacuum in your process. The key factors include:
✅ Constant vs. Intermittent Vacuum – Does your process require a continuous vacuum, or does it need periodic suction with cycling on and off?
✅ Process Residues & Contaminants – Are there dust, particulates, or moisture that could enter the pump?
✅ Temperature Sensitivity – Does your operation require handling hot, cold, or fluctuating temperatures?
✅ Material Properties – Are there gases or substances that change state when vacuum is applied?
Each of these factors will determine which vacuum technology is best suited to your application.
Choosing the Right Vacuum Pump Technology
Vacuum pumps come in several different types, each with unique strengths depending on the application’s demands.
1. Dry Rotary Vane Vacuum Pumps
✅ Best for: CNC Routing, Printing, and Packaging
✅ Why Choose This Pump?
✔ Oil-free operation reduces contamination risks
✔ Low maintenance requirements
✔ Consistent vacuum levels for continuous processes
💡 Ideal for applications where clean, dry air is essential and maintenance should be minimal.
2. Oil-Lubricated Rotary Vane Vacuum Pumps
✅ Best for: Thermoforming, Secondary Packaging, and Heavy-Duty Industrial Use
✅ Why Choose This Pump?
✔ Handles high vacuum levels efficiently
✔ More durable in demanding applications
✔ Works well in moisture-prone environments
⚠️ Considerations: Requires oil changes and exhaust filter replacements to prevent contamination.
💡 Great for operations that need high vacuum performance but can accommodate regular maintenance.
3. Hook & Claw Vacuum Pumps
✅ Best for: High-Efficiency Industrial Applications & Heavy Lifting
✅ Why Choose This Pump?
✔ Energy-efficient design reduces operational costs
✔ Maintenance-free for up to 20,000 hours
✔ Operates at all pressure levels between atmospheric and maximum vacuum
💡 Ideal for businesses that need powerful, reliable vacuum solutions with minimal maintenance.
4. Regenerative Blowers
✅ Best for: Cardboard Handling, Large Suction Cup Applications, and Light Materials
✅ Why Choose This Pump?
✔ High flow rates with low-to-medium vacuum
✔ Compact and lightweight design
✔ Oil-free operation for clean air handling
💡 Perfect for high-speed applications requiring airflow rather than deep vacuum levels.
Factors That Affect Vacuum Pump Selection
Aside from the technology type, several other factors will influence your choice:
🔹 Operating Environment: Will the pump be exposed to high humidity, chemicals, or extreme temperatures?
🔹 Energy Efficiency: Does your facility need a low-power-consumption solution?
🔹 Noise Levels: Some pumps are quieter than others, which may be crucial in noise-sensitive environments.
🔹 Maintenance Schedule: Consider the time and cost associated with routine maintenance.
🔹 Space Constraints: Does your production line require a compact, integrated vacuum pump?
Why Choose Bobcat Industrial Air Services for Your Vacuum Pump Needs?
At Bobcat Industrial Air Services, we help businesses select, install, and maintain vacuum solutions to ensure optimal performance for your specific industry.
🔹 Expert Consultation – We assess your vacuum needs and recommend the best pump for efficiency and cost savings.
🔹 Reliable Equipment – We provide industry-leading vacuum pump solutions designed for durability and performance.
🔹 Comprehensive Support – From installation and servicing to replacement parts, we help keep your operations running smoothly.
📞 Need help choosing the right vacuum pump? Contact us today for a consultation!
Once these application parameters are nailed down, the main factors that will determine the specific make and model vacuum pump to choose are:
Required vacuum level
Volume flow (cfm)
Piping/setup
Lastly, take into account your willingness to provide maintenance/service at the recommended intervals. The amount of time and investment required for these activities depends on the make and model of the pump.
Generally speaking, filtration and the right ambient conditions keep the pump healthy.
CONSEQUENCES OF CHOOSING THE WRONG VACUUM PUMP
When choosing the best vacuum pump for a specific application it’s crucial to apply the right amount of vacuum. For instance, a food product could start boiling if the vacuum level is too high. This can lead to a damaged product and additionally, the vapor may damage the pump.
In other instances, e.g. vacuum fixing or pick and place operations, too low a vacuum level can result in a risk for machine operators and machines due to a lack of clamping force.
The wrong pump choice may influence the process outcome, energy efficiency, service intervals, and many other aspects critical to your operation. Because of these factors, anything could happen – from an explosion or fire, to not working properly or the product/process being affected negatively.
VACUUM LEVELS
Vacuum pressure levels are generally classified as rough, medium, or high vacuum. Different companies and experts talk about vacuum levels differently and use different measurement units, so it’s important to clarify. Vacuum pressure can be measured in units of Torr, millibar, microns, or inches of mercury, Pascals (Pa), psi, etc.
So, for instance, a rough vacuum theoretically goes up to 1 millibar or roughly 29.8 inches of mercury. At Becker, we don’t use these terms scientifically, so when we say rough vacuum, we’re typically referring to about 15-20” of mercury or less.
There is a caveat to this. Most vacuum pump manufacturers, ourselves included, say we offer “full vacuum” pumps or to 29.99” of mercury. However, it’s rare for most industrial applications to require that level of vacuum. Most customers who say “I need full vacuum” don’t actually need it, and most companies like Becker will use the term “full vacuum” to mean something above 29” and then further qualify on a per-application basis.
VACUUM VS. FLOW
A vacuum occurs in any place where the gas pressure is lower than the Earth’s atmospheric pressure, which is approximately 14.7 psi (pounds per square inch). To create a vacuum, there must be a flow of gas or liquid from one location to another. Molecules of gas are constantly moving, putting pressure on the surrounding surfaces. As molecules are pumped away from an area, the pressure drops, and a vacuum is created.
Sometimes customers need a high flow but only a low vacuum level. For instance, a fan moves air at a high rate of flow but doesn’t create a vacuum (or only a very nominal vacuum). Other times a customer may need a really high vacuum level. The higher the vacuum, the lower the flow.
In “real” terms this makes sense. A vacuum has to pull molecules from somewhere which causes a corresponding reaction. To get high levels of vacuum, eventually, the flow will have to decrease as you’re pulling from less available volume.
GENERAL RECOMMENDATIONS FOR BECKER PUMPS
Rough vacuum – less than 15” of mercury. With less than 15” customers will also typically need higher flows. We’d recommend a regenerative blower.
Medium vacuum – 15” to 26” of mercury. We recommend dry rotary vane lines.
High vacuum – 26” to 29.92” of mercury. We recommend lubricated vane or claw pumps.
Fine or ultra vacuum – 29.92” of mercury and up. Screw pumps, and other lubricated pumps.
FINAL ADVICE ON CHOOSING A VACUUM PUMP
Finally, specific features or technologies can enhance the functionality and versatility of the vacuum pump you select. These may include filtration, the correct oil (in lubricated pumps), and gas ballast valves.
Remember, in the case of vacuum pumps, bigger is not always better! An oversized pump is only sometimes beneficial. Focusing on the volume flow and pressure level is more important than the installed motor – a larger motor is often a waste of money.
Becker Pumps is a leading manufacturer of vacuum pumps for a wide range of industries and applications. We have the knowledge and expertise to help you make the right pump selection for your specific needs.
Solving Common Vacuum Pump Problems
Vacuum pumps are critical components in many industrial applications, but they can encounter issues that disrupt operations and lead to costly downtime. At Bobcat Industrial Air Services in Nashville, TN, we understand the importance of keeping your vacuum systems running smoothly. Here, we’ll explore five common problems with vacuum pumps and provide practical solutions to help you maintain efficiency and reliability in your operations.
1. Voltage Mismatches
Improper wiring is a frequent issue that can damage or burn out a vacuum pump motor. Ensure the motor’s wiring matches the incoming voltage by checking the motor tag and wiring diagram. For three-phase motors, verify the rotation direction by bump-starting the unit. Remember, proper wiring and rotation are essential for the pump’s longevity.
2. Breaker Trips
If your pump consistently trips the breaker:
Verify the breaker’s amp rating matches the motor tag specifications.
Inspect the working chamber for metal-to-metal contact, broken vanes, or obstructions.
Regular maintenance and properly rated electrical systems can prevent this issue.
3. Loss of Vacuum or Pressure
Decreased performance often stems from inadequate maintenance:
Filters: Ensure inlet filters are clean and replace them if necessary. A flashlight test can quickly identify clogged filters.
Vanes: Inspect for wear, chips, or cupping. Damaged or sticking vanes reduce efficiency and may require replacement.
Oil Systems: For oil-lubricated pumps, check oil condition and flow. Contaminated or thickened oil can cause vane sticking and reduce lubrication.
4. Oil Misting from the Exhaust
Excessive oil mist can occur when:
The pump operates at less than optimal vacuum levels. Ensure it runs between 20-29”Hg.
Oil separators are saturated and need replacement.
The float chamber or scavenger line is clogged, starving the system of fresh oil. Regular inspections and maintenance resolve these issues.
5. Noisy Operation
Noise, such as chattering or screeching, often indicates:
New or improperly broken-in vanes: Allow the pump to run for 24-48 hours to break in.
Residual debris from previous vanes: Clean the cylinder walls thoroughly before installation.
Wear and tear on older pumps: Inspect for "washboarding" or ripples in the cylinder wall that require replacement to restore performance.
Proactive Maintenance Tips
To avoid downtime and expensive repairs:
Monitor Performance: Increased heat, noise, or vibration often signals issues. Address these early to prevent further damage.
Regular Inspections: Clean filters, measure vanes, and check oil levels routinely.
Secure Connections: Leaks in the system often result from loose plumbing or worn O-rings.
Repair or Replace?
Deciding whether to repair or replace a vacuum pump depends on the extent of the damage and cost-effectiveness:
Rebuild older pumps for backup use while installing a new one for critical operations.
Replace pumps with significant damage if rebuilding is cost-prohibitive.
Support You Can Trust
Bobcat Industrial Air Services in Nashville, TN, offers comprehensive support for vacuum pump systems, including:
Mobile repair services
In-depth evaluations and rebuilds
Maintenance training and technical assistance
Our team is here to help you keep your systems running at peak performance. Whether you need repairs, maintenance kits, or expert guidance, we’re your trusted partner.
Contact Bobcat Industrial Air Services today to learn more about our solutions for vacuum pump performance and maintenance.
Qdos H-FLO: chemical metering and dosing pump
The latest pump in the Qdos® range, Qdos H-FLO is designed specifically for higher flow rates up to 600 L/hr.
Delivering the same accuracy and reliability as other Qdos metering and dosing pumps. Qdos H-FLO pumps offer long maintenance intervals - reducing the impact of process downtime and lowering the overall cost of ownership.
Eliminate ancillary equipment
A diaphragm metering pump often requires a range of high maintenance ancillary items to function.
Qdos pumps eliminate the need for ancillary equipment while ensuring accurate, linear and repeatable metering across all process conditions.
Features and benefits
Qdos® H-FLO offers flow rates up to 600 L/h and pressure capability up to 7 bar
RFID Pumphead detection ensures confirmation of correct pumphead
Revolution counter for pumphead service maintenance
One common pump drive with several pumphead options for changing process conditions and chemistries
Network integration, control and communication options include EtherNet/IP™, PROFIBUS® and PROFINET®
Optional pressure sensing kit with configurable alarms for process monitoring
Precision in Motion: The Role and Applications of Chemical Injection Pumps
Chemical injection pumps are indispensable tools in various industries, designed to inject chemicals with precision, reliability, and efficiency. At Bobcat Industrial Air Services in Nashville, TN, we understand the importance of these pumps in maintaining optimal system performance and safety. From oil and gas to water treatment and pharmaceuticals, these pumps are built to handle the challenges posed by corrosive, abrasive, or delicate substances, ensuring seamless operation in diverse industrial applications.
Construction and Functionality of Chemical Injection Pumps
Chemical injection pumps consist of essential components engineered for durability and precision:
Rotor and Stator: The rotor creates movement, while the stator provides a tight seal, ensuring controlled chemical flow.
Pump Housing and Drive Unit: Robust materials like stainless steel or corrosion-resistant alloys house the mechanism and drive the system, powered by electric or hydraulic motors.
Inlet and Outlet Openings: These manage the entry and discharge of chemicals with precision.
These pumps operate on a positive displacement principle, where a cavity forms within the pump, pulling in chemicals and displacing them with precise force. This method ensures smooth, pulsation-free dosing for a range of applications.
Applications of Chemical Injection Pumps
Chemical injection pumps excel in industries requiring controlled chemical dosing:
Oil and Gas Industry
Prevent corrosion in pipelines and equipment.
Enhance oil recovery and ensure flow integrity with hydrate prevention.
Manage scale buildup to maintain operational efficiency.
Water Treatment
Disinfect water by injecting sanitizers.
Adjust pH levels for optimal water quality.
Support coagulation and flocculation processes for cleaner water.
Pharmaceuticals and Food Production
Meter precise dosages of ingredients, ensuring compliance and quality in production.
Sanitize and sterilize systems to meet stringent health standards.
Agriculture and Power Generation
Distribute fertilizers and pesticides efficiently.
Add corrosion inhibitors and pH stabilizers in energy production systems.
Key Considerations for Choosing a Chemical Injection Pump
Selecting the right chemical injection pump is vital for achieving efficiency and safety in operations. Critical factors include:
Flow Rate and Pressure: Ensure the pump can meet the specific volume and resistance needs of your system.
Chemical Compatibility: Match pump materials with the chemical properties to prevent corrosion or damage.
Safety Features: Opt for models with pressure relief valves, leak detection, and explosion-proof designs.
Ease of Maintenance: Choose designs that allow for quick cleaning and part replacements to minimize downtime.
Advantages and Limitations
Chemical injection pumps offer several benefits:
Precision: Accurate dosing ensures consistent product quality.
Versatility: Adaptable to various viscosities, flow rates, and chemical properties.
Durability: Engineered for long-term use with minimal maintenance.
However, they also have limitations, such as sensitivity to dry running and potential challenges in cleaning due to complex geometries. Proper maintenance and selection tailored to specific applications can mitigate these drawbacks.
Partner with Bobcat Industrial Air Services
At Bobcat Industrial Air Services in Nashville, TN, we provide expert guidance, maintenance, and support for chemical injection pumps to ensure your operations run smoothly. Whether you’re in oil and gas, water treatment, or manufacturing, our team is equipped to help you select and maintain the best solutions for your needs.
Invest in the reliability and precision of chemical injection pumps to elevate your processes. Contact Bobcat Industrial Air Services today to learn more about our offerings and support for your industrial applications.
Importance of Chemical Feed Pumps
Chemical feed pumps are critical components in industries requiring accurate and controlled chemical dosing. Whether in water treatment, manufacturing, agriculture, or energy production, these pumps ensure efficiency, safety, and precision. At Bobcat Industrial Air Services, we provide high-quality chemical feed pump solutions tailored to your industry’s specific needs.
How Do Chemical Feed Pumps Work?
A chemical feed pump consists of three primary components:
🔹 Pump Head: Houses the mechanism that draws in and discharges chemicals.
🔹 Drive Mechanism: Powers the pump, ensuring consistent flow via electric, pneumatic, or hydraulic energy.
🔹 Check Valves: Prevent backflow, ensuring precise dosing without contamination.
Types of Chemical Feed Pumps & Their Working Principles
🔹 Diaphragm Pump
✔ A flexible diaphragm moves back and forth, drawing in and pushing out chemicals.
✔ Ideal for precise metering and leak prevention.
🔹 Piston Pump
✔ A piston moves within a cylinder, creating suction and pressure cycles.
✔ Best for high-pressure applications requiring consistent dosing.
🔹 Peristaltic Pump
✔ Rotating rollers compress a flexible tube, propelling chemicals through the pump.
✔ Provides pulsation-free flow, ideal for sensitive fluids.
Applications of Chemical Feed Pumps
✔ Water Treatment Plants – Injecting chlorine for disinfection and microbial control.
✔ Chemical Processing – Precise reagent dosing for controlled reactions.
✔ Power Plants – Treating boiler feedwater to prevent corrosion and scale buildup.
✔ Agriculture & Irrigation – Fertilizer injection for optimized crop growth.
✔ Food & Beverage Industry – Accurate ingredient dosing to maintain product quality.
✔ Oil & Gas Production – Chemical injection for enhanced oil recovery and flow optimization.
How to Choose the Right Chemical Feed Pump
✅ Flow Rate & Pressure Requirements – Match the pump’s capacity to your process demands.
✅ Chemical Compatibility – Ensure materials withstand corrosive or abrasive chemicals.
✅ Material of Construction – Choose stainless steel, plastic, or specialty alloys for durability.
✅ Control & Automation Options – Manual, digital, or PLC-integrated control options available.
✅ Ease of Maintenance – Select pumps with quick disassembly features for easier cleaning.
Why Choose Bobcat Industrial Air Services for Your Chemical Feed Pump Needs?
At Bobcat Industrial Air Services, we provide:
✔ Industry-leading chemical feed pumps for precise, reliable dosing.
✔ Customized solutions to match your specific application.
✔ Expert consultation to ensure optimal efficiency and chemical compatibility.
✔ On-site support, maintenance, and replacement parts to minimize downtime.
📞 Contact us today to find the perfect chemical feed pump for your operations!
Unlock the power of regenerative blowers!
Regenerative blowers generate suction or blowing air for a wide variety of industrial applications. These turbo dynamic blowers contain a contact less, fast rotating impeller and are therefore wear and maintenance free.
Watch the video below to learn more on how they work!
Six Questions & Answers About Hose Pumps
Do you want to reduce your lubricant consumption and achieve energy savings? In this case, the hose pump technology is the right one for your application. We have summarised the most important information on hose pumps for you.
Controlled and precise pumping of media with a high solids content plays a central role in numerous industries where accurate dosing, gentle pumping and contamination prevention are paramount. In this context, hose pumps, also known as peristaltic pumps, are becoming increasingly popular. Find out everything you need to know about hose pumps here.
What are hose pumps?
Hose pumps are positive displacement pumps used, among other things, to pump liquids with a high solids content. The basic construction of a hose pump consists of a flexible hose that is squeezed by a rotor or roller mechanism. This squeezing movement transports the liquid forward in the hose. Hose pumps are also known as peristaltic pumps, as the mechanism by which the hose is squeezed is reminiscent of the contraction movements of the muscles in human peristalsis. You can use hose pumps in various industries such as chemicals, food processing, pharmaceuticals and environmental technology. Thereby, you will benefit from gentle conveying and precise dosing.
How is a hose pump constructed?
Hose pumps consist of the following main components:
Flexible hose
Rotor or roller mechanism
Pump housing
Drive system
Inlet and outlet connections
The hose is the central element of the hose pump. It is an elastic, flexible hose that is compressed by external pressure and afterwards expands again. The hose can be made of various materials, such as rubber or thermoplastic elastomers. The rotor or roller mechanism is responsible for the squeezing movement of the hose. It can consist of a rotating rotor, a shoe or an arrangement of rollers. This mechanism ensures that the hose is periodically squeezed, causing the liquid to be pumped forward. The pump housing encloses the flexible hose and the rotor or roller mechanism. It protects the components and allows the pressure and flow to be controlled. A motor or drive system is required to move the rotating element. This drive provides the periodic squeezing movement. The hose pump also has inlet and outlet connections through which the medium to be pumped is introduced into the hose and discharged at the other end.
How do hose pumps work?
Hose pumps work on the peristalsis principle. This principle is based on the squeezing movement of a flexible hose, which is periodically compressed by a rotor or roller mechanism. At the beginning of the pumping process, the hose is wholly or partially filled with the liquid to be pumped. The hose can be filled with fluid by gravity or with the help of back suction. As the rotor or rollers of the pump mechanism rotate, they move over the flexible hose. This movement periodically compresses the hose. The squeezing movement of the hose causes the liquid to be pushed forward. The pressure created by the squeezing moves the fluid towards the pump outlet. After the rotor or rollers have passed the hose in a squeezing motion, the hose relaxes again, drawing in liquid for the next pumping cycle. This process is repeated continuously, ensuring the fluid is pumped evenly and with slight pulsation.
What are hose pumps used for?
Hose pumps are used in various branches of industry, especially where precise and gentle pumping of liquids with a high solids content is required. You can use hose pumps in the chemical industry to convey various chemicals safely and precisely. Due to their ability to handle sensitive media, you benefit particularly when dosing chemicals in laboratories and industrial processes. Another area of application for hose pumps is food processing. You can use hose pumps to dose ingredients such as flavourings or colourings in this case. Due to their design, they offer you the highest level of hygiene and avoid contamination. This is why they are often used to dose medicines precisely in pharmaceutical applications. Their ability to deliver continuously and with low pulsation makes them particularly suitable for producing medicines. The requirements in the environmental sector are completely different. Due to their robust design, hose pumps are ideal for sampling water, adding chemicals for water treatment, or pumping sludge and wastewater. You can also use hose pumps for dosing chemicals in water and wastewater treatment plants to adjust pH values or add disinfectants. In laboratories, analytical instruments such as chromatographs often use hose pumps to dose solvents or reagents precisely. Here, you benefit from the high dosing accuracy. The deviation is less than one percent.
What are the advantages of hose pumps?
In addition to their versatility, hose pumps offer a range of advantages. They pump liquids very gently, as the fluid only comes into contact with the flexible hose. This makes them particularly suitable for sensitive media, such as in the pharmaceutical or biotechnology industries. Using hose pumps, you also benefit from the fact that they are self-priming and insensitive to dry running. This is particularly useful in applications where the pump is not constantly filled with liquid. The squeezing mechanism of the hose pump generates a uniform and pulsation-free flow. This enables a constant fluid flow, as required in analytical chemistry. Another decisive advantage of hose pumps is that the hose is the only wearing part. This simplifies maintenance and cleaning enormously for you. The hose can be replaced quickly and easily without dismantling the entire pump. This minimises your downtime and service times while saving you money simultaneously. Furthermore, using peristaltic pumps minimises the risk of contamination from other pump components, as the liquid to be pumped only comes into contact with the hose. Due to the closed system and limited moving parts, there is also a lower risk of leaks than other pump types. Another advantage of hose pumps is high capacity. The robust design of hose pumps makes them suitable for pumping even abrasive and aggressive media such as sludge, ceramic slurry or mortar. Another decisive advantage of hose pumps is their low energy consumption. The large rollers reduce your energy consumption by up to 30 percent and ensure a long service life for the hose. All in all, these advantages make hose pumps an attractive option in many industrial applications.
Where to buy hose pumps?
One of the premium suppliers of hose pumps on a global scale is NETZSCH Pumps & Systems. NETZSCH has been developing, producing and distributing positive displacement pumps worldwide for over 70 years. The particularly robust and maintenance-friendly PERIPRO® hose pumps from NETZSCH are suitable for aggressive and abrasive media with a solids content of up to 70 percent. At the same time, they offer you an extremely high suction capacity with minimal maintenance requirements. We promise you Proven Excellence - outstanding performance in all areas.
You're wondering whether the hose pump technology is the right one for your application? No problem! We will collaborate with you to find the right pump solution for your problem. As a global specialist in handling complex media, NETZSCH offers you numerous other technologies such as progressing cavity pumps, rotary lobe pumps, multi screw pumps, barrel emptying and grinding systems - you got the application, we provide the solution!
Discover The All-Flo Difference
For decades, #AllFlo has offered simple fluid-handling solutions for challenging applications in a range of industries. Discover how we continue this legacy, offering customers a complete line of air-operated diaphragm #pumps in various sizes and materials, including All-Pur™ models for FDA use and MAX-PASS® models for solids handling. #AllFloPumps #PSGDover
https://www.psgdover.com/all-flo/products
Looking for NSF Certified Pumps?
When your project requires NSF/ANSI/CAN 61 & NSF/ANSI 372 certified pumps, Bobcat Industrial Air Services proudly provides National Pump Company’s (NPC) high-quality turbine pumps. These rigorously tested pumps meet or exceed U.S. Safe Drinking Water Act standards, ensuring safe, lead-free water pumping with NSF-certified nameplates confirming compliance.
What Does NSF/ANSI/CAN 61 & NSF/ANSI 372 Certification Mean?
✔ Safe for Drinking Water – Certified pumps do not introduce chemical contaminants into potable water.
✔ Lead-Free Compliance – Meets low-lead requirements under NSF/ANSI 372 for drinking water system components.
✔ Intense Scrutiny – All wetted components are tested for chemical composition, surface preparation, operating temperature, and fluid flow.
✔ Global Safety Standards – Independently certified by NSF International, ensuring public health and environmental compliance.
NSF-Certified Pump Options: Vertical & Submersible Turbine Pumps
Our certified turbine pumps are available in multiple configurations to suit your needs:
🔹 Deep-Set Vertical Turbine Pumps
✔ Available as oil-lubricated or fresh water-flushed enclosed lineshaft.
✔ Also available as pre-lubricated open lineshaft.
🔹 Short-Set Vertical Turbine Pumps
✔ Available in product-lubricated or enclosed lineshaft configurations.
🔹 Submersible Turbine Pumps
✔ Designed for high-efficiency and long-lasting durability.
Customizable Materials & Components for Your Application
NPC pumps can be tailored to specific project needs with a variety of material and component options:
✔ Pump Materials: Standard, Stainless Steel, or Aluminum Bronze.
✔ Bearing Options: Bronze, Neoprene, Marine, or Vesconite.
✔ Wear Rings: Available in Stainless Steel or Aluminum Bronze.
✔ Seal Options: Mechanical seals (split or single cartridge) or expanded PTFE yarn packing.
✔ Protective Coating: Tnemec N-140 Pota-Pox Plus, ensuring long-term protection of steel components.
Your Trusted Partner for Safe & Reliable Water Pumping
At Bobcat Industrial Air Services, we are committed to delivering certified, high-quality pumps for municipal, industrial, and potable water applications. Contact our experts today to:
📞 Discuss your project needs
📞 Explore customization options
📞 Ensure compliance with NSF standards
📍 Call your local factory branch today for more details!
Bredel hose pumps (10-50)
Bredel hose pumps have no valves or seals to leak, clog or replace and provide flow rates to 17,520 L/h and pressures to 16 bar.
They can pump viscous and abrasive slurries, pastes and sludge, with up to 80 % solids in suspension.
Unlike other pump types, the highly abrasive nature of grit-filled sludge or lime slurry in the environmental market, does not affect peristaltic hose pump life.
Bredel hose pumps eliminate ancillary equipment such as dry run protection, seal water flush systems and in-line check valves. They are also reversible to flush lines.
Features and benefits
Dry running and self-priming
Suction capability up to 9.5 mWC (354 inWC)
No seals, ball-checks, diaphragms, glands, immersed rotors, stators or pistons to leak, clog, corrode or replace
Handles abrasive slurries, corrosive acids, gaseous liquids
No slippage, allowing true positive displacement for accurate, repeatable metering
No ancillary equipment, check valves, sealing water flush systems or run-dry protection required
Fully reversible to blow out suction and drain lines safely
Chemical Injection Pumps: Precision Solutions for Controlled Chemical Dosing
Rotech Pumps, a leading manufacturer of precision industrial pumps, offers an extensive range of top-quality Chemical Injection Pumps engineered for accurate and controlled chemical dosing in diverse industrial applications. Our pumps are meticulously designed to meet the stringent requirements of industries relying on precise chemical injection.
Understanding Chemical Injection Pumps
Chemical Injection Pumps, often recognized as chemical grout injection pumps, are crucial components in various industrial settings. Rotech’s innovative pumps enable the controlled and precise injection of chemicals, ensuring accuracy and efficiency in numerous applications across industries.
Key Features of Rotech’s Chemical Injection Pumps:
Precision Dosing: Our chemical injection pumps ensure precise dosing accuracy, maintaining desired chemical levels for consistent industrial operations.
Reliability and Durability: Crafted from high-quality materials, our pumps exhibit robustness and reliability, ensuring consistent performance in demanding environments.
Versatility and Adaptability: Designed to accommodate various chemicals and concentrations, our pumps cater to diverse industrial dosing requirements.
Safety Measures: Equipped with advanced safety features, our pumps ensure secure and controlled chemical handling, reducing potential risks.
Applications and Industries Benefiting from Chemical Injection Pumps:
Oil and Gas: Crucial for chemical injection in oil wells, ensuring operational efficiency and production enhancement.
Construction and Infrastructure: Used in grouting applications for infrastructure projects, maintaining structural integrity.
Chemical Manufacturing: Precise dosing of chemicals in manufacturing processes for optimal results and product quality.
Water Treatment and Purification: Ensures controlled chemical injection for effective water treatment solutions.
Pharmaceuticals and Biotechnology: Accurate dosing for various chemical processes in pharmaceutical and biotech industries.
Why Choose Rotech Pumps for Your Chemical Injection Pump Needs?
Expertise: With extensive industry experience, we offer specialized solutions tailored to meet diverse industrial requirements.
Certifications and Compliance: Our Chemical Injection Pumps adhere to stringent industry standards, ensuring quality, safety, and compliance.
Customization: We provide tailored pump solutions, collaborating closely with clients to develop pumps that fit their unique needs.
Technical Support: Our dedicated team provides prompt technical assistance, installation guidance, and comprehensive after-sales support.
Connect with Rotech Pumps for Precision Chemical Injection Solutions!
Experience the efficiency and precision of Rotech Pumps’ Chemical Injection Pumps for your industrial processes. Connect with our experts to discuss your specific requirements and explore tailored pump solutions.
