Keyston Wafer Check Valve P/N 368-810-004 Size 4" FIG 81 CWP 275 BOLT CIRCLE NOMINAL DIAMETER 7.500 INCHES ALL ENDS MATERIAL DOCUMENT AND CLASSIFICATION ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE BOLT HOLE QUANTITY 8 ALL ENDS MAXIMUM OPERATING TEMP 550.0 DEG FAHRENHEIT SINGLE RESPONSE VALVE OPERATION METHOD AUTOMATIC FLANGE SHAPE ROUND WITH HOLES ALL ENDS CONNECTION TYPE FLANGE ALL ENDS MAXIMUM OPERATING PRESSURE 150.0 POUNDS PER SQUARE INCH 1ST RESPONSE MAXIMUM OPERATING PRESSURE 225.0 POUNDS PER SQUARE INCH 2ND RESPONSE NOMINAL OUTSIDE DIAMETER 9.000 INCHES ALL ENDS NOMINAL THICKNESS 0.940 INCHES ALL ENDS BOLT HOLE NOMINAL DIAMETER 0.750 INCHES ALL ENDS MEDIA FOR WHICH DESIGNED WATER-OIL-GAS 1ST RESPONSE MEDIA FOR WHICH DESIGNED WATER-OIL-GAS 2ND RESPONSE DISK LOADING METHOD WEIGHT MOUNTING POSITION HORIZONTAL OR VERTICAL FLANGE FACE DESIGN PLAIN ALL ENDS SUPPLEMENTARY FEATURES THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL;THE CURRENT APPROVED SOURCES; 04613 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984;THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984 FACE TO FACE DISTANCE 11.500 INCHES VALVE SIZE 4.000 INCHES STYLE DESIGNATOR A2A STRAIGHT THRU FLANGED ENDS MATERIAL COPPER ALLOY 836 BODY MATERIAL COPPER ALLOY 836 FLOW CONTROL DEVICE MATERIAL DOCUMENT AND CLASSIFICATION ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY Tyco Flow Control