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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 Should Be Checked Regularly
- Jul 05, 2017 -

Because the butterfly valve plate is wiped with the butterfly valve plate is the most butterfly valve that can be used with the suspension of solid particulate media, it can also be used in powder and granular media for the strength of the seal.

The total length of the structure and the opening and closing speed of the smaller valves are then open at about 15 ° to full opening at 70 °, with a small fluid resistance, and can be sensitive to the height of the flow control valve structure Suitable for the production of large diameter valves.

Under the following operating conditions, recommend the use of butterfly valve:

① requirements of throttle, adjust the control flow;

② mud and containing solid particles;

③ short of the requirements of the valve structure;

④ requirements of the opening and closing speed;

⑤ small difference in the occasion.

In the double-digit adjustment of the necking channel, the noise is low, when the cavitation and gasification phenomena, to the atmospheric leakage is small, there are grinding media, you can use butterflies.

Special operating conditions under the throttling adjustment, or require strict sealing, or wear serious, low temperature (low temperature) and other working conditions under the use of butterfly valve, the use of three parts of the adjustment device specially designed metal sealed heart or special double eccentric butterfly valve.

By the worm wheel drive shaft and the rotating disk signal butterfly valve to achieve opening and closing and control flow. Worm wheel hand wheel rotation, so that the disk to achieve opening and closing and adjust the flow, hand wheel clockwise closed the purpose of the valve.

The use of the device

According to the wire cable connected to the corresponding terminal, and sealed the cable into the required electrical control, while the cable to prevent damage to the external forces that affect the cable connection. When the valve is in the "fully closed" position, the above-mentioned clockwise rotation to below the cam cam or counterclockwise open, the pipe clamping force in the butterfly valve is uniform and reliable attention connection. After the valve is installed, the valve plate must be in the open position when the pipe is tested. After installation of the valve, should be regularly checked, check the main items are as follows: seat and O-ring if damaged. Sealing the performance of the sealing surface of the valve plate. After the valve is repaired, it does not need to be turned on and off when the rotation is disturbed. After the valve is assembled, the sealing performance test should be required.