butterfly valve

DN800 controls the flow of the medium by rotating the butterfly plate. When the butterfly plate is parallel to the pipeline, the valve is fully open; When the butterfly plate is perpendicular to the pipeline, the valve is in a fully closed state. The opening and closing angle of butterfly valves is usually between 0 and 90 degrees.

1、 Product features:

Structural design: Made by welding steel plates, it has the characteristics of short structural dimensions, light weight, and easy installation.

Drive mode: It can be equipped with various drive devices such as manual, worm gear transmission, pneumatic, electric, etc.

Sealing performance: The valve body is equipped with an oil seal ring, and there is no visible gap between the sealing pairs, resulting in a low leakage rate.

Thermal expansion adaptability: The large expansion gap between the butterfly plate and the valve body can effectively prevent jamming caused by thermal expansion and contraction.

Operational flexibility: Small driving torque, flexible opening and closing, easy operation, only need to rotate 90 ° to complete the switch action.

2、 Structure:

butterfly valveThe main components of the valve include the valve body, butterfly plate (valve disc), valve shaft, sealing ring, and actuator (such as manual, electric, or pneumatic actuator).

The butterfly plate is installed at the center of the valve body and opens and closes the valve by rotating the valve shaft.

3、 Working principle:

butterfly valveControl the flow of the medium by rotating the butterfly plate. When the butterfly plate is parallel to the pipeline, the valve is fully open; When the butterfly plate is perpendicular to the pipeline, the valve is in a fully closed state.

butterfly valveThe opening and closing angles are usually between 0 and 90 degrees.

4、 Advantages:

Simple structure, small size, light weight, easy installation and maintenance.

Fast opening and closing speed, easy to operate.

Low fluid resistance and good flow control characteristics.

It can be designed with functions of cutting off and throttling adjustment.

5、 Sealing form:

Common sealing forms include soft seals (such as rubber seals) and hard seals (such as metal seals).

Soft seals are suitable for situations with lower temperatures and pressures, while hard seals are suitable for situations with higher temperatures and pressures.

Executing Agency:

The actuator can choose manual, electric, or pneumatic types as needed.

Electric actuators can be controlled through power signalsbutterfly valveThe switch is suitable for situations that require remote control and automation.

DN800butterfly valveWidely applicable: Suitable for multiple industries such as industry, metallurgy, environmental protection, chemical industry, building materials, power plants, glass, etc., it is used as a pipeline control device for regulating flow or cutting off gas media in ventilation and environmental protection engineering.