Api6d Pressure Seal Swing Check Valve

Product description
jsc pressure seal bonnet cast steel check valve 
product description 
1)standards: 
a)design&manufacture: api 6d, api 594, asme b16.34 
b)face to face: api 594, api 6d 
c)connection end: asme b16.5, asme b 16.47 
d)test and inspection: iso5208, api 6d 
2)sizes: 2" - 40" or dn50 - dn1000 
3)pressure rating: class150 - class1500 or pn16 - pn250 
4)material: wcb, lcb, wc6, wc9, c12, c5, cf8, cf3, cf3m, cf8m, etc.
other products 
size: 2" ~ 48" 
pressure: class 150-900lb 
materials 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 6d 
face to face: asme b 16.10, api 6d, en558, (din3202) 
end flange: asme b 16.5, (din2501) 
butt welding ends: asme b 16.25 
inspection and test: api 598.
Pressure-temperature ratings: asme b 16.34 
type of inspection: handwheel, gear, electric, manual, pneumatic, hydraulic 
to mr 0175 and mr 103 upon request