HUMPHREY POPPET DIAPHRAGM AIR PILOT VALVES TECHNICAL SECTION

Humphrey poppet diaphragm air pilot valves feature the exclusive double diaphragm design. Available in a range of sizes from 1/2 NPT to 3/4 NPT. The diaphragm poppet valves have no sliding seals to wear out and require no lubrication. The self-cleaning poppets make this design ideal in applications where the air quality may not be perfect. Several low pilot pressure types are available, 125,250,500,501,590, 42 and M42 series .