A ventilation butterfly valve is commonly used in the dusty or hot air pipelines of ventilation systems within industries such as chemical engineering, building materials, power plants, and glass manufacturing. It serves as a control device for regulating or shutting off the flow of gas media in these systems. Ventilation butterfly valves are typically installed horizontally in the pipeline. When installing, there are two important points to consider:
1. The installation location, height, and direction of the inlet and outlet must comply with the design specifications. It's crucial that the flow direction of the medium matches the arrow marked on the valve body, and all connections should be secure and leak-free.
2. Before installation, the valve should be visually inspected to ensure it meets quality standards. The nameplate on the valve should conform to the national standard "General Valve Mark" GB 12220. For valves with a working pressure exceeding 1.0 MPa or those used on main pipelines where shut-off is required, strength and tightness tests must be conducted before installation. Only valves that pass these tests should be put into use. During the strength test, the pressure should be 1.5 times the nominal pressure, and the test duration should last at least 5 minutes without any leakage from the valve body or packing. For the tightness test, the pressure should be 1.1 times the nominal pressure, and the duration must follow the requirements outlined in GB 50243.
Yongjia Tezhong Valve is a leading manufacturer specializing in the production of three-eccentric butterfly valves, metal-seated hard seal butterfly valves, ventilation butterfly valves, and flange butterfly valves. As a reliable partner, we have built strong relationships with both new and existing customers. We warmly welcome all clients to discuss business opportunities with us. For more information about our products, please visit our official website:
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Wing nuts, named butterfly nut, which plays a great role in various industries. Compared with many nuts, butterfly nuts are smaller and more beautiful in appearance. Butterfly nuts are named butterfly nuts because of their unique shape and the protruding type at one head looks like a beautiful butterfly.
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