Product specifications: Pressure up to 6
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 degree range to achieve the purpose of opening and closing or adjusting the medium flow.
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.
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.
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