Back Pressure Regulator

The Forbes Marshall Back Pressure Regulator (BPR) is specifically designed for sampling system applications to ensure accurate, reliable, and stable performance for on-line analyzers by maintaining constant upstream pressure and flow conditions, regardless of system fluctuations. This back pressure regulator is well suited for applications in power and process industries.

Unlike a standard pressure regulator that controls downstream pressure, the a back pressure regulator or a BPR works in a reverse manner to regulate and maintain constant upstream pressure. By holding a constant pressure at the analyzer inlet, it ensures priority sample flow, prevents sample lines from seizing, and avoids false “No Flow” alarms caused by imbalances in flow distribution.

Key Technical Specifications

• Body Material: Stainless Steel (SS-316)
• Diaphragm Material: PTFE lined SS316
• Seat Material: TEFZEL
• Inlet/Outlet Connection: 1/4″ OD (Double ferrule compression type)
• Flow Rate: 100 LPH (Maximum)
• Set Pressure Range: Adjustable between 0 to 6 Kg/cm²
• Standard Set Pressure: 2.5 Kg/cm²
• Max Operating Temperature: 60°C
• Mounting: Line mounting