Standard and Scope:
Size: NPS 6"~48" DN150~DN1200 (others upon request)
Pressure Rating: Class 150~600 PN10~PN100 (others upon request)
Connection: Double flange, Butt weld
Material: Carbon steel, Alloy steel, Stainless steel; WCB, Q235, 16Mn, WC6, WC9,C12A,CF8
Design and Manufacture: GB/T 12236, GB/T 12238, ASME B16.34
Test and Inspection: API598, ISO5208, GB/T 13927
Face-to-Face: API609,ISO5752, BS EN558 , Manufacturer standard
End Connection: ASME B16. 5(for NPS≤24); ASME B16.47 MSS SP-44(for NPS>24); BS EN1092-1, GB/T 9113
BW End connection: ASME B16.25, GB/T 12224
Design feature
Stop and check function, close in 0.5 second
Suitable body material was selected to guarantee body strength
Harden sealing face prevent valve damaged by operation
No hinge pin gland helps avoid inhibiting performance
Strong and low friction coefficient bearing was adopted
Tilting swing disc design has low pressure drop
Both vertical disc and inclined disc are available
Both Vertical actuator and Horizontal actuator are available
The disc is positioned at a large inclined angle seat to shorten the travel of opening/ closing, together with one auxiliary pneumatic (hydraulic) device to speed open/close process, short closing time protect steam turbine in time and reliable
The main eccentric structure plus the auxiliary pneumatic(hydraulic)pressure on the disc, the flow stopping and checking functions are realized
Triple eccentric structure design seat and disc, combined with inclined seat geometry, facilitates an tight seal with least friction.