How to Select a Pneumatic Volume Booster
Selecting the correct pneumatic volume booster requires evaluating actuator size, required flow capacity, response time, environmental conditions, and pressure control requirements. Proper booster sizing improves actuator stroking speed while maintaining stable downstream pressure control and minimizing overshoot or instability.
Standard pneumatic volume boosters are commonly used for moderate-flow valve actuation and pneumatic control systems, while high-flow boosters are designed for large actuator volumes requiring rapid pressurization and exhaust capability. Stainless steel boosters provide corrosion resistance for harsh industrial or offshore environments.
Important selection considerations include:
- Required actuator flow capacity
- Forward flow and exhaust requirements
- Signal-to-output pressure ratio
- Supply pressure range
- Response speed requirements
- Deadband and sensitivity requirements
- Adjustable bypass valve functionality
- Environmental exposure and corrosion resistance
- Port size and installation configuration
- Hazardous-area certification requirements
Applications requiring rapid valve actuation or long pneumatic transmission distances benefit from high-flow booster designs that amplify control signal flow while maintaining stable downstream pressure regulation.
For additional guidance, review ControlAir’s
Product Selection Guides
How to Determine the Appropriate Regulator
Applications
Pneumatic volume boosters are used in systems requiring increased airflow capacity, rapid actuator response, and stable pneumatic pressure amplification.
Common applications include:
- Control valve actuation systems
- Large diaphragm actuators
- Piston actuator systems
- Process automation systems
- Pneumatic signal amplification
- Remote pressure control systems
- High-flow pneumatic systems
- Oil and gas process control
- Chemical processing facilities
- Power generation systems
- Industrial automation equipment
- Fluid power and instrumentation systems
ControlAir pneumatic volume boosters are widely used in industrial process environments where fast actuator response improves process stability and control system performance.
For more application-specific solutions, explore ControlAir’s: Industries We Serve.
Key Performance Considerations
When evaluating pneumatic volume boosters, several performance factors directly affect actuator response, pressure stability, and long-term system reliability.
High Flow Capacity
Pneumatic volume boosters amplify low-flow control signals into significantly higher output flow capacity for rapid actuator stroking and fast pneumatic response.
Fast Actuator Response
High forward flow and exhaust capacity improve the opening and closing speed of large valve actuators and pneumatic control devices.
1:1 Signal-to-Output Pressure Control
Most ControlAir volume boosters operate as 1:1 signal-to-output relays, accurately reproducing pilot pressure while increasing available flow capacity.
Adjustable Bypass Valve Stability
Integral adjustable bypass valves allow small incremental downstream pressure changes without opening the main booster valve, improving control stability across varying actuator sizes.
Low Deadband and High Sensitivity
Precision pilot-operated booster designs provide highly sensitive response with minimal deadband for accurate pneumatic control performance.
High Exhaust Capacity
Large exhaust capacity enables rapid actuator venting and improves response time during valve closing or pressure reduction events.
Corrosion Resistance and Environmental Durability
Stainless steel booster configurations support operation in corrosive process environments including offshore, chemical, and harsh industrial applications.
Wide Operating Temperature Capability
Expanded temperature configurations support reliable operation in extreme industrial environments with operating ranges as low as -65°F and as high as 284°F depending on model configuration.
These factors directly affect pneumatic system responsiveness, actuator stability, and long-term process reliability.
Certifications and Environmental Protection
ControlAir pneumatic volume boosters are available with certifications and environmental protection options for demanding industrial and hazardous environments:
- Aluminum and stainless steel body construction
- Corrosion-resistant industrial designs
- High-flow industrial actuator compatibility
- Adjustable bypass valve configurations
- ATEX-certified configurations available
- Extreme temperature operation options
- Industrial automation and process control compatibility
These pneumatic booster systems support reliable operation across oil and gas, chemical processing, power generation, automation, and industrial process control environments.
Engineering Resources
ControlAir provides technical resources to support pneumatic system integration and volume booster selection:
Product Selection Guides
CAD Models & Product Specifier
Certifications
White Papers
FAQs
These resources provide detailed specifications, installation guidance, and application insights.
Need Help Selecting?
Choosing the right pneumatic volume booster depends on your actuator volume, flow requirements, operating pressures, environmental conditions, and control response requirements.
Provide your actuator specifications, required flow capacity, and application details, and our team can help identify the best pneumatic volume booster solution for your system.
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FAQs
What is a pneumatic volume booster?
A pneumatic volume booster is a pilot-operated pneumatic relay that amplifies airflow capacity while reproducing the pilot signal pressure for faster actuator response and improved pneumatic control.
Why are pneumatic volume boosters used?
Volume boosters are used to increase actuator stroking speed, improve flow capacity, and provide rapid pneumatic response in valve actuation and process control systems.
What applications use pneumatic volume boosters?
Common applications include control valve actuation, process automation, remote pressure control, large diaphragm and piston actuators, and industrial fluid power systems.
What is the purpose of the bypass valve in a volume booster?
The adjustable bypass valve allows small downstream pressure changes without opening the main booster valve, improving stability and reducing actuator oscillation.
When should I use a stainless steel volume booster?
Stainless steel volume boosters should be used in corrosive or harsh industrial environments such as offshore platforms, chemical processing plants, and washdown applications.
For more about volume boosters, please see our blog “What is a Volume Booster?“
