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The Amflow PR7B is the most popular back pressure regulator in the Amflow range, designed for upstream back pressure regulation in chemical injection systems. It maintains a constant upstream pressure regardless of downstream pressure variations, ensuring stable and accurate flow control. Operating pressure range is 3 to 414 bar (44 to 6,000 PSI) with flow rates up to 1,000 LPH. Standard MOC is 316/316L stainless steel with 1/4" FBSPP or FNPT ports. The PR7B is compatible with Amflow ATEX-certified actuators for automated operation.
| Pressure Range | 3 bar (44 PSI) to 414 bar (6,000 PSI) |
| Flow Rates | Up to 1,000 LPH |
| Maximum Operating Pressure | 414 bar (6,000 psi) |
| Standard MOC | 316/316L Stainless Steel |
| Ports | 1/4" FBSPP or 1/4" FNPT |
High-pressure version of the PR7B, rated to 931 bar (13,500 PSI). Covers 3–931 bar and up to 1,000 LPH with SF375CX medium-pressure ports.
Higher pressure and higher flow back pressure regulator. Covers 3–931 bar and up to 7,500 LPH with SF750CX medium-pressure ports.
Contact our engineering team for custom specifications, material options, and technical support for the PR7B Back Pressure Regulator.
