Made of PTFE and PPS. An item with universal application possibilities. It can be used as a pressure-relief valve with a variably adjustable opening pressure as well as a pressure maintaining valve to prevent pressure drop during filling. The medium is exposed only to PTFE, which assures universal chemical resistance. The interior of the valve, which is in contact with the product, has been constructed with a very low dead volume. The valve is provided with two bores for panel mounting. The pressure range is between 0,1 and 5 bar and can be adjusted by means of a set-screw. The pressure setting can be fixed by means of a lock nut. The valve is factory set to a pressure of 1,5 bar. The UNF 1/4 28G female threads allow an easy and safe connection without dead volume. The flow direction is indicated by integrated arrows.