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TieLing ZG Valve Technology Co.,Ltd
Add:Fuzhou Road,Economic Development Zone,Tieling,Liaoning,China
Tel:+86-24-72690555
Fax:+86-24-72690111
Ph:+8615941025678
E-mail:tlvalve@aliyun.com
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Butterfly Valve High Sealing, Long Life
- Jul 14, 2017 -

Butterfly valve is the opening and closing parts (butterfly plate) around the fixed shaft rotation of the valve, mainly through the disc-shaped valve reciprocating turn to open, close or adjust the flow. It has the characteristics of small volume, light weight, small installation size and so on. It is mainly used for conveying large-diameter pipes with less than 80MPa pressure less than 1MPa, such as water, air and gas. 

Before installation, check the opening and closing of the drive bolt, whether the media flow is consistent with the logo, the installation, the butterfly plate to stop in the closed position, and try to install in the vertical pipe, if the need for horizontal installation, the valve shaft Should not use vertical installation, the best horizontal installation, if not the level of installation, can be used to install the valve shaft tilt, but not allowed more than 45 degrees.

Butterfly valve (butterfly valve) refers to the closure (disc or butterfly plate) for the disc, around the valve shaft rotation to achieve the opening and closing of a valve, the main cut off and throttling in the pipeline. Butterfly valve opening and closing parts is a disc-shaped butterfly plate, in the valve body around its own axis of rotation, so as to achieve the purpose of opening or closing or adjustment. Butterfly valve fully open to the whole is usually less than 90 °, butterfly valve and butterfly rod itself does not have self-locking ability, in order to butterfly plate positioning, to install the worm on the stem reducer. The use of worm reducer, not only can make the disc with self-locking ability, so that the butterfly plate to stop at any position, but also improve the valve operating performance. Industrial special butterfly valve features high temperature, suitable pressure range is also high, the valve nominal diameter, the valve body made of carbon steel, valve plate ring with metal ring instead of rubber ring. Large-scale high-temperature butterfly valve made of steel plate welding, mainly used for high-temperature medium of the smoke duct and gas pipeline.

Butterfly valve is not only simple structure, small size, light weight, the material consumption of the province, the installation of small size, and the drive torque is small, easy to operate, and can also have a good flow of the function of the closure and sealing characteristics, Years to develop one of the fastest varieties of valves. Especially in the United States, Japan, Germany, France, Italy and other industrial developed countries, the use of butterfly valve is very extensive. The use of the variety and the number continues to expand, and to high temperature, high pressure, large diameter, high sealing, long life, excellent regulation characteristics and a multi-functional valve development, its reliability and other performance indicators are higher Level, and has partially replaced the globe valve, gate valve and ball valve.

With the butterfly valve technology progress. In the foreseeable short period of time, especially in large and medium caliber, low pressure in the field of use, butterfly valve will become the leading form of the valve.

The original butterfly valve is a simple, and tightly closed baffle valve. Usually used as a flow control valve and a damper in a water line system.

With the anti-chemical corrosion of synthetic rubber on the application of butterfly valve, butterfly valve performance can be improved. As the synthetic rubber with corrosion resistance, erosion resistance, dimensional stability, good elasticity, easy to shape, low cost and other characteristics, and according to the different requirements of the use of different properties of synthetic rubber to meet the use of butterfly valve conditions, Widely used in the manufacture of butterfly valve lining and elastic seat.

When the butterfly valve is fully open, it has a small flow resistance, and when it is open between about 15 ° and about 70 °it can carry out sensitive flow control. Therefore, in the field of large diameter adjustment, the application of butterfly valve is very common, and Gradually become the main valve type. As the butterfly valve plate movement with a wipe, so most of the butterfly valve can be used with suspended solids particles, according to the strength of the seal can also be used for powder and granular media.

Butterfly valve opening and closing parts is a disc-shaped butterfly plate, in the valve body around its own axis of rotation, so as to achieve the opening or closing valve valve called butterfly. Butterfly valve fully open to the whole is usually less than 90 degrees, butterfly valve and butterfly rod itself is not self-locking strong, in order to butterfly plate positioning, to install the worm on the stem reducer. The use of worm reducer, not only can make the disc with self-locking ability, so that the butterfly plate to stop at any position, but also improve the valve operating performance.

Industrial special butterfly valve features high temperature, suitable pressure range is also high, the valve nominal diameter, the valve body made of carbon steel, valve plate ring with metal ring instead of rubber ring. Large-scale high-temperature butterfly valve made of steel plate welding, mainly used for high-temperature medium of the smoke duct and gas pipeline.