Sichuan - Shanghai pneumatic valve co. , LTD Share eight properly installed pneumatic valve adjustment

regulating pneumatic valve installed quality directly affects the adjustment of pneumatic valve operating performance, security, high and low cost, ensure the good control effect in the control system, the installation process should pay attention to the following eight items:
in the first paragraph: regulating pneumatic valve installed before the test is a very important link, in order to confirm that regulating pneumatic valve meet the design requirements. Adjust the pneumatic valve specifications include: pneumatic valve, pneumatic valve model form, nominal diameter, pneumatic valve, pneumatic valve seat size core form, flow characteristic, leakage level, pneumatic valve, pneumatic valve core material qualitative, pneumatic valve seat material, CV value, the flange size and sealing surface on a standard scale, etc.
the second: regulating pneumatic valve before installation, must be carefully clear the dust accumulated by pneumatic valve during storage, because the dust impurities can make pneumatic seat and damage to the inner part, usually at the end of opening flange mount plate or sealed with plastic wrap.
the third: adjust the pneumatic valve should be installed in horizontal pipe runs vertically, if you must tilt goods level should increase support during installation. Pneumatic valve should be greater than before and after The Times the diameter of straight pipe length.
4: the flow of fluid should be like the signs on the pneumatic valve body.
item 5: adjust the pneumatic valve installation, often by interference source, it will directly affect the performance of the pneumatic valve adjustment. So, should avoid to install where there are source.
item 6: adjust the pneumatic valve installation position of good or bad will directly affect the high and low maintenance cost, thus regulating pneumatic valve should be installed in the position of easy to maintain and repair. (7) :
in order to stable gas source, protection instrument, adjust the pneumatic valve with air filtration pressure pneumatic valve pneumatic valve and safety systems.
8: after installation, pipeline during pressure test and purging, regulating pneumatic valve should be removed, want to use the straight section of phase leveling used to prevent the welding slag, such as iron pin wu card between the pneumatic valve core and the pneumatic valve seat. Remove the regulation of pneumatic valve opening flange end application plastic cloth bandage firmly.