Top Entry Ball Valve

Fangwen top entry ball valve is mainly applicable for pipeline and industry system such as petroleum, chemical engineering and nuclear power plants. Its body adopts an integrated design, reducing leak points. Its seat design is available for either soft or hard seal, easy for maintenance. It has a top entry and on line maintenance function. Fangwen top entry ball valve with small fluid resistance, simple structure, small volume, light weight, reliable sealing, convenience for operation and maintenance, open and close quickly, as well as start and close flexibly.

Fangwen top entry ball valve maintenance can be made on pipe line and without dismounting from the pipe line. The back space seat structure is adopted for the seat and the rear portion of seat retainer is oblique angle to prevent accumulation of impurity from affecting back space of seat.

Floating Top Entry Ball Valve

The Fangwen Floating Top Entry Ball valves have been solving many fluid control problems in Steam, Boiling and other general industrial applications for over 30 years. Vatc floating Top entry ball valve is a valve with its ball floating (not fixed by a trunnion) inside the valve body, it drifts toward to the downstream side and tightly pushes against the seat under the medium pressure to ensure sealing reliability. it has simple structure, good sealing performance but the seat material is required to withstand the workload since the sealing pressure is beared by the seat ring.

GENEARL DESIGN FEATURES:

One piece casted body

One-piece flange top-entry floating design

Double block and bleed

One-piece ball and stem assures precise positioning

Anti blowout one-piece ball/stem design

O-rings plus fire-safe packing prevents leakage

Corrosion resistant low friction bearings

Wave springs provide upstream and downstream sealing

Stainless Steel Sealant injection fittings for emergency stem of seat sealing

Inline repairable due to reasonable seat retainer design

Minimized torque required to open and close valve

Anti-static grounding between ball, stem and body

Integral top works direct mounting pad

ASME B16.34, API 6D, API 6A, 607 and 6FA, NACE MR 0175

CE Marked (P.E.D.97/13/EC)

Capabilities and Ranges:

Sizes: DN15 through DN600

Body Styles: End connections Flanged, Welded or Threaded Ends

Body Materials: Carbon steel, stainless steel, alloy steel, duplex steel

Pressure Class: ANSI CL150, CL300, CL600, CL800, CL900, CL1500, CL2500

Actuations: Lever, GEAR, Electric, Pneumatic, Hydraulic or E-Hydraulic