Manual Damper Valve
Wafer damper valve Wafer damper valve is a simple regulating valve, suitable for dust-containing cold air or hot air gas pipelines in ventilation and environmental protection projects in chemical, building materials, power stations, glass and other industries. Its structural features include no complex parts such as connecting stems and bolts, and only 90-degree rotation is required to complete the opening and closing operation, which is flexible and labor-saving to operate.
Name: Wafer Butterfly Valve
Model: D71X
Diameter: DN50~DN1200
Fatory: Tianjin
When the valve is fully opened, the only resistance to the medium flowing through the valve body comes from the thickness of the butterfly plate, so the pressure drop is very small, and it has good flow control characteristics. Wafer damper valves are suitable for a variety of industrial environments, including petroleum, gas, chemical industry, water treatment and cooling water systems of thermal power plants, demonstrating its wide applicability and high efficiency in industrial applications.
Which one of the ordinary butterfly valve and gate valve with the same nominal pressure and nominal diameter is more tight and less likely to leak?
The tightness of the gate valve is better than that of the butterfly valve, but there are also manufacturers with good butterfly valves.
The gate valve is large and occupies a large space.
The butterfly valve is small and occupies a small space.
When making a specific selection, the temperature of the medium, the sealing and packing of the valve should also be considered.
It is stipulated that the butterfly valve should be used for a nominal diameter greater than 50.
The wafer butterfly valve is a national key new product. The high-performance manual butterfly valve adopts a double eccentric and a special oblique cone elliptical sealing structure. It solves the problem that the sealing surface of the traditional eccentric butterfly valve is still in sliding contact friction at the moment of opening and closing 0°~10°, and realizes the effect that the sealing surface of the butterfly plate is separated at the moment of opening, and the sealing is achieved when the contact is closed, so as to achieve the purpose of extending the service life and optimizing the sealing performance.
Sealing form
1. Forced sealing butterfly valve
(1) Elastic sealing butterfly valve. The sealing pressure is generated by the elasticity of the valve seat or valve plate when the valve plate squeezes the valve seat when the valve is closed.
(2) External torque sealing butterfly valve. The sealing pressure is generated by the torque applied to the valve shaft.
2. Pressurized sealing butterfly valve. The sealing pressure is generated by the pressurization of the elastic sealing element on the valve seat or valve plate.
3. Automatic sealing butterfly valve. The sealing pressure is automatically generated by the medium pressure.
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