Detailed Product Description

Top Entry Trunnion Mounted Ball Valves

DGV top entry trunnion mounted ball valves featuring with integral body, top entry trunnion mounted ball. This type of valves gives convenient of in-line repair or replacing valve internal components without removing the body from the pipeline. The seat seal design uses unique two-level soft sealing and metal to metal sealing to form triple sealing. The seat piston is designed after accurate calculation to ensure sealing reliability with small open/close torque and easy operation. The valve is widely used in the nature gas and oil pipeline, the industries of petrochemical, medicine, city constructions, etc.

Applicable Standard:

Design Standard:     API 6D, ASME B16.34, BS 5351, API 608, MSS SP-72

Face to Face:          API 6D, ASME B16.10

End Flange:             ASME B16.5, ASME B16.47

Buttwelding Ends:    ASME B16.25

Inspection and Test: API 6D, API 598

Products Range:

Size:                       2" - 30"(DN50 - DN750).

Rating:                    ANSI 150lb - 1500lb.

Body Materials:       Carbon Steel, Stainless Steel, Alloy Steel.

Trim:                       A105+ENP, 13Cr, F304, F316.

Operation:               Lever, Gear, Electric, Pneumatic, Hydraulic.

Design Features:

Full port or reduced port.

Integral body design.

Blowout-proof stem.

Top entry, trunnion mounted ball.

Emergency sealant injection.
Cavity pressure self relief.

Double block and bleed structure.

Fire safe design to API 607 / API 6FA.

Anti-static to BS 5351.