The Beswick PRDB-18MM is our smallest diaphragm regulator. It is specified when space is limited and weight needs to be kept to a minimum. Designed as a single stage regulator, the PRDB-18MM is ideal for applications with steady inlet pressures up to a maximum of 500 psig. (34.5 bar).  The body is machined in brass with 303 and 316 stainless steel wetted components. The inlet and outlet ports are machined with M3x 0.5 internal threads.