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Wafer butterfly valve butterfly plate installed in the pipe diameter direction. In the butterfly valve body cylindrical channel, disc disc disc rotation around the axis, rotation Angle of 0°-90°, can play a role in flow regulation, when the disc rotation to 90°, the valve to large opening. Wafer butterfly valve simple structure, small size, light weight, only by a few parts. And only need to rotate 90° can quickly open and close, simple operation, while the valve has good fluid control characteristics.

Wafer butterfly valve butterfly plate installed in the pipe diameter direction. In the butterfly valve body cylindrical channel, disc disc disc rotation around the axis, rotation Angle of 0°-90°, can play a role in flow regulation, when the disc rotation to 90°, the valve to large opening.

Wafer butterfly valve simple structure, small size, light weight, only by a few parts. And only need to rotate 90° can quickly open and close, simple operation, while the valve has good fluid control characteristics. Butterfly valve is in the fully open position, butterfly plate thickness is the resistance of the medium flowing through the valve body, so the pressure drop generated by the valve is very small, so it has good flow control characteristics. Butterfly valve flexible soft seal and metal seal two types of sealing. Flexible soft seal valve, sealing ring can be mounted on the valve body or attached to the disc periphery.

The valve with metal seal is generally longer than the valve with elastic seal, but it is difficult to achieve complete seal. Metal seal can adapt to higher working temperature, elastic soft seal is limited by temperature defects.

If butterfly valves are required to be used as flow control, it is important to correctly choose the size and type of the valve. The structure principle of butterfly valve is especially suitable for making large diameter valves. Butterfly valve is not only widely used in petroleum, gas, chemical industry, water treatment and other general industries, but also used in the cooling water system of thermal power stations. This type of valve in the pipeline should generally be installed horizontally.

Commonly used butterfly valves have wafer butterfly valve and flange butterfly valve two. Wafer butterfly valve is connected between two pipe flanges with double-head bolts, flanged butterfly valve is a valve with flanges, with bolts on both ends of the valve flanges are connected to the pipe flanges.

USES:

Used for gas pipeline: furnace blower inlet and outlet, relay fan inlet and outlet, electric defogging series and unicom valve, S02 main blower inlet and outlet, converter adjustment, preheater inlet and outlet and other regulation and cut-off volume use.

Also widely used in: chemical, petrochemical, smelting, medicine, food and other industries.

Wafer butterfly valve structure features:

The unique design of three-way eccentric drives the sealing face without friction and prolongs the service life of the valve.

The elastic seal is produced by torque.

The ingenious wedge-shaped design makes the valve more and more tightly sealed automatically, with compensatory and zero leakage between sealing surfaces.

④ Small size, light weight, light operation, easy to install.

Pneumatic and electric devices can be configured according to user requirements to meet the needs of remote control and program control.

The replacement parts material can be applied to a variety of media, and can be lined with anti-corrosion (lining F46, GXPP, PO, etc.).

⑦ Continuous structure diversification: clamp, flange, butt welding.

The length of the valve shall be in accordance with GB12221-1989 and the dimensions of flange connection shall be in accordance with JB/T79-1994.