1. CE, ISO9001, API6D, CQC, PDO
2. Lift Check Valve Size 1/4"~2"
3. Class 800~1500LB
A105, F5, F9, F11, F316, LF2 etc

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, Piston Type
5. Materials conform to: ANSI/ASTM
6. Main materials:
A105; F5; F9; F11; F22; F91; F304; F304L; F316; F316L; F321; LF2 etc.