Product

TWO PIECE BALL VALVE

 

Design Standard:

ANSI B16.34;API608

Wall Thickness Standard:

ANSI B16.34;EN12516-3

Thread Standard:

ANSI B1.20.1;BS21;DIN2999/259;ISO228-1;JIS B0203

Test Standard:

API 598;EN 12266

NO. Name

Material 

1 Bonnet

A351 CF8/A351 CF8M/A216 WCB

2 Seal line

PTFE/RPTFE

3 Seat

PTFE/RPTFE/PPL/PEEK

4 Ball

SUS304/SUS316

5 Body

A351 CF8/A351 CF8M/A216 WCB

6 Stem

SUS304/SUS316

7 Anti-wear gasket

PTFE/RPTFE

8 V-type packing

PTFE/RPTFE

9 Gland

SUS304

10 Handle

SUS304

11 Stem nut

SUS304

 

 

 

The ball cover can be connected with the valve stem to form a 90 degree ball core structure.

It is mainly used for pipeline switch, emergency cut-off, and ball core V-shaped opening can also be designed to achieve

flow regulation function.

Main Technical Connection Dimensions:

Female Thread Ball Valve (1000psi)                       
Size d L H W
1/4" 12 55 49 90
3/8" 12 60 49 90
1/2" 15 75 52 110
3/4" 20 80 63 120
1" 25 90 67 130
1 1/4" 32 110 80 140
1 1/2" 38 120 93 175
2" 49 140 110 175
2 1/2" 64 185 117 220
3" 76 205 134 270
4" 100 240 157 310


Female Thread Ball Valve (1000psi)                       
Size d L H W
1/4" 12 50 49 90
3/8" 12 50 49 90
1/2" 15 62 52 110
3/4" 20 70 63 120
1" 25 82 67 130
1 1/4" 32 96 80 140
1 1/2" 38 105 93 175
2" 49 124 110 175
2 1/2" 64 160 117 220
3" 76 180 134 270
4" 100 215 157 310


Female Thread Ball Valve (2000psi)                       
Size d L H W
1/4" 10.5 60 55 100
3/8" 12 60 58 100
1/2" 15 75 61 110
3/4" 20 80 71 130
1" 25 90 75.5 160
1 1/4" 32 110 83 160
1 1/2" 38 120 93 175
2" 48 140 110 220

Male And Female Thread Ball Valve (1000psi)                       
Size d L H W
1/4" 10 65 76 90
3/8" 12 65 49 90
1/2" 15 76 52 110
3/4" 20 85 63 120
1" 25 95 67 130
1 1/4" 32 110 80 140
1 1/2" 38 125 93 175
2" 49 140 110 175

Male Thread Ball Valve (1000psi)                       
Size d L H W
1/4" 10 80 49 90
3/8" 12 80 49 90
1/2" 15 90 52 110
3/4" 20 95 63 120
1" 25 105 67 130
1 1/4" 32 120 80 140
1 1/2" 38 135 93 175
2" 49 155 110 175

Working Principle

 

Startup

(1)In the closed position, the ball is pressed against the valve seat by the mechanical pressure of the valve stem.

(2)When the hand wheel is turned counterclockwise, the valve stem moves in the opposite direction, and the angular plane at the bottom makes the ball

disengage from the valve seat.

(3)The valve stem continues to lift and interacts with the guide pin in the helical groove of the valve stem, causing the ball to start rotating without friction.

(4)Until it reaches the fully open position, the valve stem is raised to the limit position, and the ball rotates to the fully open position.

 

Shutdown

(1)When closing, turn the handwheel clockwise, the valve stem starts to drop and the ball leaves the valve seat to start rotating.

(2)Continue to rotate the handwheel, and the valve stem is acted by the guide pin embedded in the spiral groove on it, so that the valve stem and the ball

rotate 90° at the same time.

(3)When it is about to close, the ball has rotated 90° without contact with the valve seat.

(4)In the last few turns of the handwheel, the angular plane at the bottom of the valve stem mechanically wedges against the ball to press it tightly against the

valve seat to achieve a complete seal.

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