What are the points to adjust the valve installation? The correct installation method, can improve the efficiency of the valve, reduce valve wear, the following is the introduction of the regulation valve installation, for your reference. 1) Installation location, height, direction of import and export must meet the design requirements, the connection should be firm and tight. 2) All kinds of manual valves and handles installed on the pipe should not be downward. 3) The valve must be installed before the appearance inspection, the valve nameplate should be consistent with the current national standard "General Valve Flags" GB 12220 requirements. For the working pressure is greater than 1.0 MPa and the main pipe to play the role of cut-off valve, the installation should be carried out before the intensity and tightness test, qualified after the standard use. Strength test, the test pressure of 1.5 times the nominal pressure, the duration of not less than 5min, valve housing, packing should be no leakage as qualified. Tightness test, the test pressure is 1.1 times the nominal pressure; test pressure in the test duration should be consistent with GB 50243 standard requirements, no leakage valve plate sealing as qualified.
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