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Gear Box Cast Trunnion Mounted Ball Valve

Gear Box Cast Trunnion Mounted Ball Valve

The trunnion ball valve is equipped with a movable seat seal ring which can generate displacement under the pressure of medium. In case that any medium pressure exists, the pressure will press the valve seat seal ring onto the ball tightly, guaranteeing the sealing performance of the ball valve.


Design Features

1.Fireproof Structure 

2.Anti-static Device

3.DBB(Double Block and Bleed)

4.Free Leakage

5.Bi-sealing Structure

6.Emergency Sealing Device

7.Safety Relief Device

8.Blow-out Proof Stem

9.Various Driving Type

10.Extension stem

Product Description

Design and Manufacture: API 6D

Face to Face and End to End: ASME B16.10, ISO 5752 Series 14

Flanged End dimension: ASME B16.5, ASME B16.47, DIN

Butt Welded End dimension: ASME B16.25

Socket Welded End dimension: ASME B16.11

Pressure Tamperature Rating: ASME B16.34

Test & Inspection: API 598

Visual Inspecting: MSS SP-55

Marking: MSS SP-25

Anti Static Device

Fire safe according to API 607 / 6Fa

NACE MR 01-75

Feature Descriptions:

Specific sealing structure of valve. Double elastic seal ring or V shaped groove seal ring structure design to make sure sealing reliablity.

Automatic pressure relief structure.

Reliable sealing of valve rod. The rod adopts downward installation structure with back sealing. The sealing force will increase together with the heightening of medium pressure, which ensure the sealing reliablity.

Fire resistant structure. Ball valve can be designed with fire resistant structure according to standard API 607, which can avoid serious leakage when the soft seal ring burnt out on fire.

Anti-static structure. The anto static design can avoid static sparkle between the ball and the base.

Locking device. Locking structure is designed on the full open and full close spots of manual ball valves to avoid abnormal open / close operation or misoperation.

Full bore structure and reduced bore structure.

Body Materials: WCB, LCB, CF8, CF8M, CF3, CF3M, A105, LF2, F304, F316, F304L, F316L, WC6, WC9, C5, C12, LCA, LCB, LCC, LC1, A105, LF2/LF1, EN12516 1.0619, 1.4408, 1.44011. 4301, 1.4304, 1.4404, 1.4021, 1.4571, 1.4541, 1.4462, Alloy 20, Monel, Inconel etc.

Trim: 13%Cr, stellite, 304, 304L, 316, 316L, monel, duplex, superduplex, Alloy 20, Monel, Inconel etc

Seats: soft(PTFE, Viton), Metal to Metal

Available operator: handwheel, Gear box, chain wheel, electric actuator, Pneumatic actuator, Hydraulic actuator, Gas over oil actuator, or request by customers

Hot Tags: gear box cast trunnion mounted ball valve, China, Wenzhou, manufacturers, suppliers, factory, customized, price list, in stock, made in China


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