Anderson Greenwood (AGCO) P/N MDPHIS-4-SG, Series MDP, Valves 2-Block, 1-Equalize, 2-Vent/Test, Connections 1/2"FNPT Process x 1/2"FNPT Instrument, Body 316SS, Packing Grafoil, Seat Integral, Rating 6000 PSIG at 200 F, 1500 PSIG at 1000 F, NACE MR0175, AG