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3pc Ball Valve

3pc Ball Valve


Description of 3pc Ball Valve:

ZECO 3PC Ball valve is usually 3PC trunnion mounted ball valve. The 3PC trunnion mounted ball valve only needs to rotate the ball 90 degrees through the gear or handle to stop the flow of medium in the pipeline. The chamber of the ball body, like the gate valve, is nearly as close to zero flow resistance as a section of pipe when fully open, which is equivalent to a straight line. But because the 3PC trunnion mounted ball valve can be specially designed for special conditions, the ball valve is also slowly changed from a truncated valve to a valve that can throttle and control the flow. ZECO 3PC trunnion mounted ball valve is widely used in oil, chemical and natural gas industry and meets the requirements of API 6D design standard..


Features of 3pc Ball Valve:

1. When operating a valve, the friction between ball and sealing face will generate static charge and accumulate on the ball. In order to avoid static spark, anti-static device is designed on valve to lead out static charges;

2. According to customer’s requirements or working system requirements, the body is equipped with a relieving valve. Once two sides of ZECO 3PC Ball valve is blocked and pressure added, dregs inside the cavity will be relieved;

3. When abnormal high pressure appeared at the cavity, single sealing structure ZECO 3PC Ball valve has the function of self pressure-relieving; The wall thickness of a valve is designed thicker for corrosive purpose. Stem, trunnion, body seat and lower cover are plated as per ASTM B733 and ASTM B656;

4. Manual operation for full open/close position designed with locking device, thus, mal-operation and unpredicted line vibration to open/close the ZECO 3PC Ball valve is avoid.


Material of 3pc Ball Valve:

No

Part

Material

1

Body

ASTM A182 F304

2

Bonnet

ASTM A182 F04

3

Bonnet Bolt

ASTM A193 B8

4

Bonnet Nut

ASTM A194 8

5

Bonnet Gasket

Graphite +SS304

6

Seat Ring

RPTFE

7

Ball

ASTM A182 F304

8

Stem

ASTM A276 304

9

Stem Packing

Graphite

10

Gland

ASTM A351 CF8

11

Stop Collar

ANSI 1025


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