Top Entry Ball Valve

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Additional information

Size/Rating

NPS 2~48/Class 150~2500
Body Materials

Carbon Steel (WCB), Stainless Steel (CF3M, CF8M), Low Temperature Steel (LCC), etc
Design Standard

API 608, API 6D, BS 5351
Face to Face

API 6D, ASME B16.10, JIS B2002
End

Butt Welding, Flange
End Dimension

ASME B16.25, ASME B16.5, MSS SP-44/ASME B16.47
Test & Inspection

API 598, API 6D
Actuator

Handle, Gear, Electric, Pneumatic
Notes

The size of valve flange and butt-welding terminal can be designed according to the customer's requirement.
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Product Details:

With the technology up to the domestic leading level, our top entry ball valves can compete with international counterparts. Besides the features borne by the side entry fixed ball valve, they are also given the features as below.

Structural Features

  • Locking device
  • Integral body structure, top entry trunnion to fix and support
  • Inconel bellows spring makes the sealed metal seat moving toward the ball, providing the two-way seal function of inlet and outlet
  • Retractable valve seat, realize online stem, sealing ring, metal seat and bellow spring replacement
  • Easy to install and repair, long performance life. Top online maintenance function
  • Antistatic device
  • Fire protection design
  • ISO 5211 top flange
  • Reliable Sealing Structural
  • Spherical seat different from ordinary ball valves, which can automatically adjust the seal position
  • DBB(Double Block & Bleed)
  • Hand operated entry ball valve adopt high strength one-piece stem structure to ensure the precise positioning of the ball
  • Low torque design for easy operation

 

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