Description
DN2300 Electrically Ventilation Butterfly Valve Used in chemical industry, building materials, power station, glass and other industries
product data
Electric butterfly valve is an important actuator in industrial automation control system
Electric damper valve
Brand: Freya
Product specifications: Pressure up to 6
Origin: Tianjin
Material: Cast steel
Applicable scenarios: Chemical, building materials, power stations, glass
Mainly used to cut off or connect the medium in the pipeline
Applications
Used in dusty cold or hot air gas pipelines for ventilation and environmental protection projects in chemical, building materials, power stations, glass and other industries as pipeline control devices for regulating flow or cutting off gas medium. This type of valve should generally be installed horizontally in the pipeline.
structure features
① Appearance
It is designed and manufactured with a new structural form of welding the centerline butterfly plate and the short structural steel plate. It has a compact structure, light weight, easy installation, small flow resistance, large flow volume, avoids the influence of high temperature expansion, and is easy to operate.
② Performance
No connecting rods, bolts, etc., reliable operation and long service life. Can be installed in multiple positions and is not affected by the flow direction of the medium
working principle
The damper butterfly valve is divided into manual and electric transmission. The actuator can be driven by an motor or a turbine to allow the butterfly plate to rotate freely within a 90° range to achieve the purpose of opening and closing or adjusting the medium flow.
installation
1. The installation position, height, and inlet and outlet directions must meet the design requirements. Note that the direction of the medium flow should be consistent with the direction of the arrow marked on the valve body, and the connection should be firm and tight.
2. The appearance of the valve must be inspected before installation, and the nameplate of the valve should comply with the provisions of the current national standard "General Valve Marking" GB 12220. For valves with a working pressure greater than 1.0 MPa and a cut-off function on the main pipe, strength and tightness performance tests should be carried out before installation, and they can only be used after passing the test. During the strength test, the test pressure is 1.5 times the nominal pressure, and the duration is not less than 5 minutes. The valve housing and packing should be leak-free to be qualified. During the tightness test, the test pressure is 1.1 times the nominal pressure; the test duration meets the requirements of GB 50243.
features
The structure of the damper butterfly valve is welded with a middleline butterfly plate and a short structural steel plate, so there are no components such as connecting rods and bolts inside it, and there will be no component problems during use, so the failure rate is very low. It is very convenient to use. It is a reliable valve device. And because its sealing system uses metal closure, although the sealing effect is not as good as elastic sealing, its service life is longer than elastic sealing, and it has the characteristics of high temperature resistance. Therefore, it is widely used in building materials, electricity, metallurgy and other industries. In the medium conveying pipeline with a temperature not higher than 300 degrees, the connection and closing adjustment can be achieved. This butterfly valve can also be specially customized according to the needs of customers, which is very user-friendly.
Because the gap between the butterfly plate and the valve body of the damper butterfly valve is large and there is enough expansion space, it can effectively prevent the thermal expansion and contraction caused by temperature changes during use, and the butterfly plate will not be stuck. Common butterfly valves have a variety of drive modes, including manual drive, electric drive, pneumatic drive, etc., and there is a lot of room for choice. Because of the material, this butterfly valve is also resistant to high temperatures, and there is no friction when it is switched on and off, and the service life is extremely long. The damper butterfly valve is a valve made of welded steel plates. It has the characteristics of small size, light weight, and easy installation. In addition, because of its small flow resistance and large flow volume, it will not be affected by high temperature expansion. Its driving torque is small and the switch is very flexible, so it is very convenient to operate. It is deeply loved by people in the industry.
