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Trunnion Mounted Ball Valve

Trunnion Mounted Ball Valve


Description of Trunnion Mounted Ball Valve:

ZECO trunnion mounted ball valve is suitable for natural gas, oil and gas, chemical industry, metallurgy and other industries, sealing structure is divided into pre-ball sealing structure, post-ball sealing structure and double sealing structure, mainly according to the size of pressure, medium properties and sealing requirements to select.

As one of the reliable trunnion ball valve manufacturers and trunnion mounted ball valve suppliers in China, ZECO company works to supply top quality products and services to our customers.


Features of Trunnion Mounted Valve:

1. ZECO trunnion mounted ball valve has self-relieving structure. When the pressure in the chamber of the valve body increases abnormally, the ball valve of the single-seal structure will conduct automatic pressure relief, and the ball valve of the double-seal structure will conduct pressure relief through the additional pressure relief device on the valve body;

2. ZECO trunnion mounted valve has the auxiliary seating emergency seal system. When the soft sealing surface is damaged and cannot be sealed, the corresponding sealant can be injected through the additional grease injection valve for emergency sealing. At the same time, the grease injection valve can also be used to flush and lubricate the seat area to maintain the normal operation state of the valve;

3. ZECO trunnion type ball valve can be designed as fireproof structure according to API 607 standard according to actual working conditions.In the case that the soft sealing surface can not be sealed after burning in the case of fire, the fireproof structure can prevent a large number of medium leakage to prevent the serious fire;

4. ZECO trunnion mounted ball valve has a locking device.In manual ball valve two full open and full closed position to prevent wrong operation can be designed according to customer requirements for the structure of the lock, this structure can be combustible medium such as oil or chemical production line and valve outside piping, avoid unpredictable line of undue vibration switch phenomenon.


Material of Trunnion Type Ball Valve:

No

Part

Material

1

Body

ASTM A216 WCB

2

Bonnet

ASTM A216 WCB

3

Ball

ASTM A105

4

Seat

ASTM A105 + PTFE

5

Stem

ASTM A182 F6a

6

Anti-static Device

SS304

7

Gasket

Graphite + SS304

8

Bolt

ASTM A193 B7

9

Nut

ASTM A194 2H

10

O-ring

Viton A

11

Lever

ASTM A216 WCB

 

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