Pressure valve

A pressure valve for installation in a supply line between a pump work chamber of a fuel injection pump and an injection valve in an internal combustion engine supplied by said fuel injection pump, comprising a valve seat body having a valve seat and a passageway in which a pressure valve closing member is guided, said closing member having a portion disposed between said valve seat and a compression spring supported in a fixed manner in a spring chamber, a sealing face on said closure member arranged to cooperate with said valve seat, a return-feed collar on said closure member arranged to pass into said passageway connected to said pump work chamber, a relief conduit in said closure member, a throttle member, said relief conduit arranged to be connected to said spring chamber via said throttle member, and to a part of said passageway being permanently connected to said pump work chamber upstream of said return-feed collar, said throttle member having a check valve, a closing spring means supported on said valve closing member and said return-feed collar being provided with a throttle means on its circumference arranged to connect adjacent parts of said passageway.