Best Worm Gear Telescopic Butterfly Valve manufacturer

Best Worm Gear Telescopic Butterfly Valve manufacturer

SD343H worm gear telescopic butterfly valve （Description）

SD343H worm gear expansion butterfly valve is a kind of component used to realize the turn-on and flow control of pipeline system. It has been widely used in petroleum, chemical industry, metallurgy, hydropower and many other fields. The butterfly plate of the telescopic butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation Angle is between 0° and 90°. When the rotation reaches 90°, the valve is fully open. The valve is generally installed horizontally.

Usage and Features

SD343H worm gear expansion butterfly valve with nominal pressure ≤1.6MPa acts as flow regulation and interception medium on water supply, drainage and gas pipelines for food, medicine, chemical industry, petroleum, electric power, light textile and paper making, and has the function of compensating thermal expansion and cold contraction of pipelines.

1.Novel design, reasonable structure, light weight, easy operation, quick opening and closing

2.The telescopic butterfly valve can not only adjust and intercept the function, compensate the thermal expansion and cold contraction function caused by the temperature difference of the pipeline, but also provide convenience for the installation, replacement and maintenance of the valve

3.The sealing part can be adjusted and replaced, and the sealing performance is reliable

Installation notes

1.telescopic butterfly valve must be flat before installation, do not knock

2.The structure length of the telescopic butterfly valve is small when it is delivered. When it is installed, it is pulled to the installation length (i.e. the design length).

3.when the pipeline length exceeds the installation length of the expansion valve, please adjust the pipeline interval, do not forcibly pull the expansion valve, so as not to damage the expansion valve. The supporting force of the bracket is calculated according to the following formula. It is strictly prohibited to remove the bracket during operation

4.pipe construction site is strictly prohibited to disassemble the telescopic butterfly valve

5.worm gear telescopic butterfly valve, fine processing, with tight, do not repeatedly elongate the short telescopic butterfly valve at the scene. When the pipeline is installed, the pipes at both ends of the expansion valve must be concentric, and the two flanges on the pipeline should be parallel

6.The flange fixing bolts should be tightened symmetrically. Do not tighten the flange fixing bolts unilaterally

main technical parameters

Main components materials

The main shape and connection dimensions