Q45F WCB 304 316 316L Three Way Ball Valve PN1.6 2.5 4.0 6.4

Q45F WCB 304 316 316L PN1.6 2.5 4.0 6.4 Flange Three-Way Ball Valve

Structure of ball valve

The sealing property is good, but all the load of the ball bearing the working medium is passed to the outlet sealing ring. Therefore, it is necessary to consider whether the sealing ring material can withstand the working load of the ball medium. When subjected to high pressure impact, the ball may be offset.This structure is generally used in low and medium pressure ball valves.Valve Fixed Ball Ball Valve The ball of a ball valve is fixed and does not move under pressure.Fixed ball ball valve has a floating seat, by the medium pressure, the seat movement, so that the sealing ring tightly pressed on the ball, to ensure sealing.Usually with the ball on the upper and lower shaft bearing, operation torque is small, suitable for high pressure and large caliber valves.

Product Description

Cangzhou Junxi International Trade Co., Ltd.
Our company produce and export all kinds of carbon steel pipe fittings,Seamless Pipe Fittings, Our city Cang Zhou city is the hometown of carbon steel pipe fittings. We have exported to many countries, such as, Russia, Egypt Malaysia, India, Turkey, Indonesia, Jordan etc.
About the pipe fitting machine, we have different type for every machine.We have hot forming elbow machine, cold forming elbow machine, cold forming tee machine, beveling machine, shot blasting machine, etc.. Machine guarantee is one year. If our clients machine has problem, our after sale service person will come and help the clients solve the problem as quickly as possible.
About the pipe fitting machine, we have different type for every machine.We have hot forming elbow machine, cold forming elbow machine, cold forming tee machine, beveling machine, shot blasting machine, etc.. Machine guarantee is one year. If our clients machine has problem, our after sale service person will come and help the clients solve the problem as quickly as possible.
 

Common faults and troubleshooting methods of ball valves

1. The ball is washed over

Exclusion method: the assembly should be correct, the operation should be stable, not allowed to be used as throttle valve;The ball should be repaired in time after overturning and the sealing seat should be replaced.

2, when used as throttling function, sealing surface is damaged

Elimination method: the ball valve is not allowed to be used as throttle.

3. The sealing surface is crushed

Exclusion method: tighten the bolt at the valve seat should be uniform, the force should be small, would rather tighten several times, not too much and too tight at one time, the damaged sealing surface can be scraped and repaired.

4. There is no pre-tightening pressure on the sealing surface

Exclusion method: the sealing surface of the valve seat should be regularly checked the pre-tightening pressure, and the sealing surface should be slightly compressed when it is found that the sealing surface has leaked or contacted loose;Preloaded spring loss effect replacement.

5, the spanner, valve stem and the ball three connection gap is large, the spanner has reached the closed position, the ball rotation Angle is less than 90 degrees and the longevity of leakage

Exclusion method: the wrench, valve stem and the ball of the finite mechanism of the three connection loose and clearance is too large should be repaired, fastening to firm;Adjust the limit block, eliminate the advance Angle of the wrench, and make the ball open and close correctly.

6. The contact surface between the valve seat and the body is not smooth and worn, and the O-ring is damaged so that the valve seat leaks.

Elimination method: improve the smooth finish of the contact surface between the valve seat and the body, reduce the disassembly times of the valve seat, and replace the O-ring regularly.