500X Safety holding / relief valve

Product overview

The 500X Safety pressure holding / relief valve uses the water force to control the pilot valve to make the main valve automatically discharge part of the water to stabilize the design pressure of the pipeline in front of the valve. When the pressure returns below the set value, the main valve will close automatically, and the pressure relief and holding of the valve can be adjusted within a certain range. 500X safety pressure relief valve is mainly used in fire fighting or other water supply systems to prevent system overpressure or maintain the pressure of fire water supply system. The impact of water hammer can also be reduced after the fire pump is turned off. It is also used for water hammer device of large water supply system.