check valves check valves , supply of items as per following specifications , check valve swing type, size –2 150#, raised face flanged ends, material- body – sa216 gr. wcb, seat – sa 105 and 13% cr faced, disc – sa105 / sa216 gr. wcb and 13 % cr faced, hinge pin – 13% cr, body to bonnet connection – bolted, face to face dimension as per asme b16.10, flanges and drilling as per asme b16.5, valve testing as per api598. , check valve swing type, size – 3 150#, raised face flanged ends, material- body – sa216 gr. wcb, seat – sa 105 and 13% cr faced, disc – sa105 / sa216 gr. wcb and 13 % cr faced, hinge pin – 13% cr, body to bonnet connection – bolted, face to face dimension as per asme b16.10, flanges and drilling as per asme b16.5, valve testing as per api598. , check valve swing type, flanged ends flanged to ansi b16.5, #150, rf, bolted cover construction.valve body made from cast steel, casting conforming to astm a216 gr.wcb and trim parts machined from ss410 quality bar stock, fitted with teflon gasket packing, valve tested as per api 598 size 4. , check valve swing type, size – 6 150#, raised face flanged ends, material- body – sa216 gr. wcb, seat – sa 105 and 13% cr faced, disc – sa216 gr. wcb and 13 % cr faced, hinge pin – 13% cr, body to bonnet connection – bolted, face to face dimension as per asme b16.10, flanges and drilling as per asme b16.5, valve testing as per api598. , check valve swing type, size – 8 150#, raised face flanged ends, material- body – sa216 gr. wcb, seat – sa 105 and 13% cr faced, disc – sa216 gr. wcb and 13 % cr faced, hinge pin – 13% cr, body to bonnet connection – bolted, face to face dimension as per asme b16.10, flanges and drilling as per asme b16.5, valve testing as per api598. , check valve swing type, size – 10 150#, raised face flanged ends, material- body – sa216 gr. wcb, seat – sa 105 and 13% cr faced, disc – sa216 gr. wcb and 13 % cr faced, hinge pin – 13% cr, body to bonnet connection – bolted, face to face dimension as per asme b16.10, flanges and drilling as per asme b16.5, valve testing as per api598. , wafer type check valve size:-10, suitable for mounting between fla s conforming to bs-10 table-e, material:- body & disc:- cf 8m, spring & hinge pin:- s.s.-316, seal ring:-nitrile rubber. => limited