304/316 stainless steel Thread Check Valve 1.Investment casting technology 2. ... 3.SS304,SS316,CF8/CF8M, 304/316 stainless steel Thread Check ValveSize: 1/2"-12"2) Pressure: 150-300lbs3 ... 4308/1.44084.Size:1/4"-4",DN8-DN1005.Thread ends NPT,DIN259,DIN2999,BSPP,BSPT,NPSM6.Pressure:800PSI ... bushing,barrel nipple,close nipple ,welding nipple,hose nipple,socket,coupling etc.2.valves series: 1pc,2pc,3pc ball ...