3 Piece Stainless Steel Ball Valve


3 Piece Ball Valve is designed to be taken apart for easy cleaning.

What is a 3 Piece Ball Valve?

ZECO 3 piece stainless steel ball valve is usually trunnion ball valve and floating ball valve.

The 3 piece 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 3 piece 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.

Applications of 3 Piece Stainless Steel Ball Valves

ZECO 3 piece stainless steel ball valve is widely used in oil, chemical and natural gas industry and meets the requirements of API 6D design standard..

Features of 3 Piece Stainless Steel Ball Valves:

  • 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;
  • According to customer’s requirements or working system requirements, the body is equipped with a relieving valve. Once two sides of ZECO 3 piece stainless steel ball valve is blocked and pressure added, dregs inside the cavity will be relieved;
  • When abnormal high pressure appeared at the cavity, single sealing structure ZECO 3 piece stainless steel 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;
  • Manual operation for full open/close position designed with locking device, thus, mal-operation and unpredicted line vibration to open/close the ZECO 3 piece stainless steel ball valve is avoid.

Material of 3 Piece Stainless Steel Ball Valves:

No Part Material
1 Body ASTM A351 CF8M
2 Bonnet ASTM A351 CF8M
3 Bonnet Bolt ASTM A193 B8M
4 Bonnet Nut ASTM A194 8M
5 Bonnet Gasket Graphite +SS316
6 Seat Ring DEVELON
7 Ball ASTM A182 F316
8 Stem ASTM A276 316
9 Stem Packing Graphite
10 Gland ASTM A351 CF8M
11 Stop Collar ANSI 1025

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