2020.10.13
Proportional Pressure Regulator and Volume Booster
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Volume Booster
A volume booster is a pressure regulation device that is controlled by a pilot pressure instead of a spring or adjustment thread as in an air pressure regulator. A volume booster may also be called a “pilot operated regulator”. The spring in a regulator normally supplies the mechanical pressure required to open the supply valve until there is an equal force balance between output pressure and spring force. In a volume booster, instead of a spring providing force balance, the “spring force” is supplied by a pilot pressure acting on a diaphragm.
Four Basic Air Components to A Volume Booster Circuit
- Supply Pressure
- Regulated or downstream pressure
- Signal (pilot) Pressure
- Atmosphere (exhaust)
- To speed the stroke of larger volume actuators.
- Air operated, remote pressure regulation.
- Hazardous environments where electric signals are not desirable.
Some common options for a volume booster include the addition of a bypass valve (bypass needle valve) which can be used to adjust the dynamic response to provide stable operation over a wide variety of applications. Another option could be the addition of an adjustable bias to skew the output pressure from the signal pressure. Although, this is generally found in smaller versions of a volume booster, sometimes referred to as an air relay. This could be a positive or negative bias. 
Proportional Pressure Regulator Working with A Volume Booster
Kaolu QKL proportional pressure regulator or electronic pressure regulator can be used together with air pilot volume booster to increase the flow rate. We have many successful cases and please consult us for customised solution.
Please check our youtube video for further information:
https://www.youtube.com/watch?v=x3Jf5A62a_s&list=PLE1TcEHg0nMNVYymlcD9KpWz41HxU3-_X&index=4