Back pressure regulator Special core analysis Instruments

The Back pressure regulator Special core analysis Instruments is used to maintain pressure in either single-phase or multiphase flow studies. The regulator 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 while the lower chamber receives the process pressure.

The Back pressure regulator Special core analysis Instruments acts as a comparator. When the dome pressure is higher than the process pressure, the needle shuts the 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, through these oscillations, highly reliable pressure regulation is attained.

Pressure ranges :

• up to 10,000 psi
• up to 15,000 psi
• up to 20,000 psi

Wetted material :

• Stainless steel or Hastelloy

Operating temperature :

• up to 150°C (300°F)

Flow rates :

• from 0.0001 to 50 cc/min

Compatible fluids :

• Gas, liquid and supercritical fluids

Gas dome pressure loading design for precise regulation :

• available

• 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