Overview PP902 pneumatic valve controls the pressure of the air delivered to pneumatic control systems. Models available for single-pressure systems or two-pressure systems (Day/Night or Summer/Winter) requiring two independently regulated pressure settings. Features Built-in adjustable safety relief valve for limiting downstream pressure. For two-pressure models: Pressure changes accomplished with manual switch or automatically with electric pneumatic switch. Adjustable stops for desired settings. Product Specifications ApplicationN/SDimensions (in.)11 in. high, 8 7/8 in. wide, 3 3/4 in. deepDimensions (mm)279 mm high, 225 mm wide, 95 mm deepMaximum Safe Operating Pressure (psi)N/SMaximum Safe Operating Pressure (kPa)N/SIncludesSubmicron filter assembly and two psig gages.MountingBracket furnishedApprovals, Underwriters Laboratories Inc.N/SApprovals, Canadian Standards AssociationN/SApprovals, Factory MutualN/SConnection Size (in.)Inlet and out air: 1/4 in. NPT (female); 1/8 in.NPT pilotDifferential Pressure Range (psi)N/SDifferential Pressure Range (kPa)N/SApprovals, NEMA StandardN/SPressure Ratings (psi)Inlet-- 45 to 150 psi; Output-- primary pressure: adjustable 0 to 25 psiPressure Ratings (kPa)Inlet-- 310 to 1034 kPa; Output-- primary pressure: adjustable 0 to 172 kPaNumber of PipesN/SChangeover Pressure (psi)N/SChangeover Pressure (kPa)N/SMainline Pressure Range (psi)N/SCapacityN/SControl Range (fpm)N/SControl Range (m/s)N/SNumber of Sensor InputsN/SRemote Control Point AdjustmentN/SApproximate Throttling Range, Midscale (psi)N/SApproximate Throttling Range, Midscale (kPa)N/S