info@welcovalve.com
TEL: 86-577-67279881
FAX: 86-577-67279880
+86-15067717767
Skype: welcovalve
Our 900Lb top entry ball valve is widely used for long distance transportation pipeline for oil and gas project etc. We can produce the nominal diameter of top entry ball valve from 2" to 36".
TOP ENTRY BALL VALVE
Size range: 2" TO 36"
Design: ANSI B16.34 & API-6D & API-608 or BS5351
Face to face: ANSI B16.10
Flanged ends: From 2" to 24" Acc/ANSI B16.5, upper than 24" Acc/ANSI B16.47 or MSS SP-44 or upon request
Butt-welded ends: ANSI B16.25
By-pass & drain: MSS SP-45
Inspection and test: API-598, API-6D
Construction and features:
1. One-piece valve body,top installed trunnion to fix and support, flanged or butt welded structure.
2. In coned bellows spring makes the sealed metal seat moving oward the ball,providing the two way seal function of inlet and outlet.
3. Distinctive technology of retractable valve seat, inline replace ability of ball arm,valve stem sealing ring,metal seat and bellows spring, and torque down to the minimum for the easy to operation.
4. Easy to repair and installation,long performance life. Access for repair and replacement of trims may be done with no need to remove the valve from the pipeline, thus to lengthen the service life.
5. Low torque, reliable sealing, and spherical seat different from ordinary ball valves, which can automatically adjust the position of seal.
6. Preset platform and bolt holes for drie device, and to ISO5211. Drive device can be installed according to users' different requirments.
7. DBB(double block and bleed) function.
8. Hand operated top installed ball valve adopts high strength one-piece ball arm structure to ensure the precise positioning of the ball.
9. Anti-blowout protective structure of valve stem to enhance the operational safety of the valve.
10. Manual operated (gearbox,electric, pneumatic…)
11. Other requirements upon request
Materials: Acc/ANSI B16.34 A-105, LF2, LF1 WCB, WCC, LCB, LCC and other materials upon request
Trim: F6, 304, 316, 316L, A-105+ENP, WCB+ENP, CF8, CF8M, CF3M and other materials upon request
Seats: Soft (PTFE, Viton, Nylon) and Metal to Metal all kind available
Others: Jacketed, cryogenic services, HJacketed, cryogenic services, H.F. services, all kind of operated, all type of painting and coating.