cng filling double flange butterfly valve with pneumatic actuator

Feature of flange butterfly valve 

Our company advantage

1.the specific material based on the use of environment and customer requirement ,alternative material

2.our insist on the quality first ,customer first

3.our product gone through ISO9001 and CE0038 standard

4.our product price be qualified with the quality

5.have superior manufacturing ability

The valve failures that can occur and method to eliminate

The reason of sealing surface leakage should have the following points :

1.butterfly valve and ring folder with debris .

2.Butterfly valve ,sealed closed position consistent errors 

3.Exports equipped with flange blots are uneven force or compression 

4.The pressure test is incorrect  

Elimination method:

1.Elimination of impurities ,cleaning the valve cavity . 

2.Adjust the worm gear or electric actuator ,such as implementing agencies limit screw is reached the valve closed position is correct 

3.Check mating flange plane and bolt clamping force should be evenly pressed .

4.Put pressure on the direction of the arrow .

Our company introduction

Tianjin Ots Valve Manufacturering Co., Ltd.,  a jointed company, established during the time of China Reform and Open to the World. specializing in all kinds industrial butterfly valves with 13340 meters, including 8600m work shop, fixed finance of RBM 200 millions  as well as some advanced design, processing, assembling and  testing for all butterfly valves. Further we are rich in the experience of producing butterfly valves over more than 10 years, all of the butterfly valves we produced come up to the advanced standard home and abroad.

our certificate--you don't worry about quality

If  you need something about valves ,please contact us !!

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