Description

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.