Stainless Steel Precision Casting Threaded Swing Check Valve

1.material:precision casting stainless steel 304(cf8) 316(cf8m),304l,316l                                  2.nominal pressure:200psi/pn16 3.working temperature:from -20degree centigrade to 200degree centigrade 4 specifications and features: 1/2inch-4inch; full port. 5.thread standard: asme b1.20.1 bs21, iso228-1,iso7/1,jis b0203  bsp bspt npt din2999/259  6.inspection testing: api598,en12266 7.packing method: plastic bag&carton&plywood pallet 8.applicable medium:water,steam,oil products,corrosive