The installation of the pneumatic valve forged steel gate and directions for use

pneumatic valve forged steel gate for truncation or on line in the medium, choose different material, can be respectively suitable for water, steam, oil, acetic acid, oxidizing medium, urea, and other media. It has three body cover connected
design form, as follows:
the first: body cover welding connection pneumatic valves, forged steel gate design of the pneumatic valve in this connection, the pneumatic valve body and valve cover all welding seal, advantage is no external leakage
the second: body cover bolt connection pneumatic valves, forged steel gate design of the pneumatic valve in this connection, the pneumatic valve body and bonnet bolting, spiral wound gasket seal, the advantage is convenient for maintenance.
the third: pressure self-tightening type pneumatic valves, forged steel gate design of the pneumatic valve in this connection, the pneumatic valve connected to the pneumatic valve cover with screw mosquitoes, since internal pressure sealing ring seal, advantage is that the higher the internal pressure, the greater the sealing performance is better.

the installation of the pneumatic valve forged steel gate and directions for use:
and all kinds of manual pneumatic valve installed on the thermal insulation pipe, handle shall not down.
, installation position and height, import and export direction must comply with the design requirements, the connection should be firmly connected.
pneumatic valves, forged steel gate, a visual inspection must be conducted before installation, pneumatic valve nameplate shall comply with the current national standard 'general pneumatic valve symbol' GB regulation.
pressure is greater than to work. MPa and pneumatic valve with the function of cutting on ZhuGanGuan, strength and strict performance test should be done before the installation, qualified rear must use.
strength test, the test pressure for the nominal pressure. Times, duration of not less than min, pneumatic valve shell, packing should be no leakage as qualified.
leak test, the test pressure for the nominal pressure. Times; The duration of the test pressure in the test should conform to GB standard requirements, with no leakage for qualified for pneumatic valve sealing surface.