Construction installation points of electric regulating pneumatic valve pneumatic valves have?

pneumatic valve pneumatic, electric regulating valve installation position, height, import and export direction must conform to the requirements of the entrance design, connection should be firmly connected.

pneumatic valve of pneumatic, electric regulating valve available various forms of end connected to the pipe. One of the main connection mode with screw thread, flange and welding connection. Flange connection, if the temperature exceeds ℃, due to the creep relaxation bolts, flange and gasket, should choose high temperature bolt material.

pneumatic valve of pneumatic, electric regulating valve is a visual inspection must be conducted before installation, pneumatic valve nameplate should be consistent with existing national standards GB 'general pneumatic valve symbol' regulation. Pressure is greater than for the job. MPa and pneumatic valve with the function of cutting on ZhuGanGuan, should carry on the strength and leak test, qualified rear must use. Other pneumatic valve can not independently test, stay in the system pressure test.

, for electric pneumatic valve strength test, test pressure for the nominal pressure. Times, duration of not less than min, pneumatic valve shell, packing should be no leakage. Leak test, the test pressure for the nominal pressure. Times; Test pressure constant, must be maintained in the duration of the test time shall comply with the provisions of the eligible for pneumatic valve sealing surface with no leakage. Nominal diameter: DN ~.