Is there a check valve with a relief valve above?
Over the excess pressure discharge, maintain protection of pipeline system valve. For reference!
Fire check valve is used in the fire pump and fire water tank water outlet flow pipeline, pump regulator with control flow unidirectional flow device where the control flow only one-way flow valve; fire safety valve is used to pump combination device and fire pump outlet pipe to control the pipeline pressure does not exceed the pressure will need to use.
You can be sure to answer, no such installationThe fire check valve is not the same as the relief valve.
