1/2" To 4" One Way Water Valve Plastic PVC Body Three Piece Ball Valve

Three-piece plastic PVC body steel handle ball valve

Introduction

The two-piece ball valve can be divided into straight-through type, three-way type and right-angle type according to its channel position. The latter two ball valves are used to distribute the medium and change the flow direction of the medium. Two-piece ball valve installation and maintenance should pay attention to:
1. Leave the position where the valve handle rotates.
2. Cannot be used as throttling.
3 The ball valve with the transmission mechanism should be installed upright.

working principle

open process
1. In the closed position, the ball is pressed against the valve seat by the [wiki]mechanical[/wiki] of the valve stem.
2. When the handwheel 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, so that the ball begins to rotate without friction.
4. Until it reaches the fully open position, the valve stem is lifted to the limit position, and the ball rotates to the fully open position.

shutdown process
1. When closing, turn the handwheel clockwise, the valve stem starts to descend and the ball leaves the valve seat and starts to rotate.
2. Continue to rotate the handwheel, the valve stem is acted by the guide pin embedded in the upper spiral groove, 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. During the last few turns of the handwheel, the angular plane at the bottom of the valve stem is mechanically wedged to press the sphere so that it is tightly pressed on the valve seat to achieve complete sealing.

Why choose us?

1. We produce the parts ourselves, which makes the price more competitive and the delivery faster;

2. We provide OEM service and submit various styles, latest designs to our customers;

3. We cooperate with major customers in Southeast Asia, Africa, Middle East, North America, South America;

4. We have standard test reports from SGS and GMC;

5. We have rich experience in providing customers with high-quality products and the most professional services;

6. Welcome to visit our factory.