Product descriptionjsc pressure seal bonnet cast steel check valve product description 1)standards:a)design&manufacture: api 6d, api 594, asme b16.34b)face to face: api 594, api 6dc)connection end: asme b16.5, asme b 16.47d)test and inspection: iso5208, api 6d2)sizes: 2" - 40" or dn50 - dn10003)pressure rating: class150 - class1500 or pn16 - pn2504)material: wcb, lcb, wc6, wc9, c12, c5, cf8, cf3, cf3m, cf8m, etc. other productssize: 2" 48"pressure: class 150-900lbmaterials of check valve: wcb, lcb, cf8, cf8m, cf3, cf3m, wc6, wc9, c5, c12 or equivalent, available also in low temperature steels, low alloy steels, stainless steels, duplex type stainless steels and other exotic materials; various trim materials available to suit service conditions design standard:design: bs 1868 asme b 16.34api 6dface to face: asme b 16.10, api 6d, en558, (din3202)end flange: asme b 16.5, (din2501)butt welding ends: asme b 16.25inspection and test: api 598. Pressure-temperature ratings: asme b 16.34type of inspection: handwheel, gear, electric, manual, pneumatic, hydraulic to mr 0175 and mr 103 upon request