Swing check valve:
size: nps 1/2"-42"
pressure: class 150-1500
material: 1/2"-2": a105, lf2, f11, f22, f5, f304, f316, f304l, f316l
2"-36": wcb, lcb, wc6, wc9, c12, c5, cf8, cf3, cf3m, cf8m
design & manufacture std. : Api 6d, bs 1868, asme b16. 34

face To face std. : Api 6d, asme b16. 10, Din 3202
end connection std. : Asme b16. 11, Asme b1. 20. 1, Asme b16. 5, Asme b16. 47, Din2543-2550, asme b16. 25
test Standard: iso5208, api 6d, bs 6755
structure type: regular pattern, pressure sealed pattern, damping pattern.