forged steel check valve
1.CE,ISO9001,API6D,CQC
2.check valve size 1/4"~2" 
3.forged check valve Class 800~2500LB

Application standards:
1. Design and manufacture conform to: API 602;
2. Connection ends conform to:
    1) Socket welded dimension conform to
        ANSI B 16.11
    2) Screw thread dimension conform to
        ANSI B 1.20.1
3. Test and inspection conform to: API 598
4. Structure features: B.B, Swing Check Valve
5. Materials conform to: ANSI/ASTM
6. Main materials:
    A105; F5; F9; F11; F22; F91; F304; F304L; F316; F316L; F321; LF2 etc.