1. Maintaining a constant pump outlet pressure: Back pressure valves prevent backflow or reverse flow of fluid in the pipeline, ensuring a stable pressure at the pump outlet.
2. Safety valve function: In systems with less stringent requirements, back pressure valves can be used as safety valves. When the pressure in the pipeline or equipment exceeds a set value, it automatically opens to release the excess pressure.
3. Reducing water hammer damage to the system: When used in conjunction with a pulsation damper, back pressure valves can reduce the damage caused by water hammer to the system, protecting pipelines, elbows, and joints from the impact of pressure fluctuations.
4. Improving pump performance: Back pressure valves create a favorable working environment for metering pumps and other positive displacement pumps, improving their performance.
5. Reducing siphon phenomena: Siphon phenomena often occur at the pump outlet due to gravity or other factors. Back pressure valves can reduce the flow and pressure fluctuations caused by siphoning.
