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Back pressure regulator (BPR series)

Used to maintain the pressure in either single or multi-phase flow studies. The BPR utilizes a gas dome pressure loading design that allows extremely precise flow rate control of both binary and tertiary fluids. It consists of two chambers separated by a piston with a needle connected to it on the lower side. The upper chamber receives the gas dome pressure and the lower chamber, the process pressure. The BPR acts a comparator. When the dome pressure is higher than the process pressure, the needle shuts the BPR outlet allowing the pressure to build up. Conversely, when the process pressure exceeds the dome pressure, the needle retracts so that the excess process fluid can flow outwards, therefore reducing the system pressure. Consequently, from these oscillations, a highly reliable pressure regulation is attained.

FEATURES: 

 

BPR-10 

BPR-15

 BPR-20

 Pressure ranges:  up to 10,000 psi up to 15,000 psi  up to 20,000 psi
 Wetted material:  stainless steel or hasteloy stainless steel or hasteloy  stainless steel or hastelloy
 Temperature:  up to 150°C (300 F) up to 150°C (300 F)  up to 150°C (300 F)
 Flow rates:  from 0.0001 to 50 cc/min from 0.0001 to 50 cc/min  from 0.0001 to 50 cc/min
 Type of fluids:  gas, liquid, supercritical fluids gas, liquid, supercritical fluids  gas, liquid, supercritical fluids

 
BENEFITS:

* Extremely fast response to system pressure fluctuations
* Stable pressure control over the entire flow range
* Accurate control even during multiphase flow
* Corrosion and chemical resistant