With Air Actuator and valve position indicator. Manufactured by Keystone L-Loc Valve Fig. # 362-158 Body Steel Disc 316SS, Shaft 174 Seat ATFE, Bearing SS Rating ANSF CL 150, 100 degrees F @ 285 psi, 50 degrees F @ 50 psi.( Normally closed, air to open.) 1" air supply to actuator.