The reasons for heating lax valve closure and solutions
Heating valve closed due to lax reasons:
(1) sealing surface damage or mild corrosion.
(2) improper operation, closing the sealing surface contact is not good.
(3) Stem bending, upper and lower sealing surface is not center.
(4) impurities plug spool.
Heating valve closed lax solution:
(1) adhere to the valve into the water pressure test, including the strength test and tightness test, test the valve should be carefully examined, analyze the reasons, gently open and close a few times before making a test, is still closed, To disassemble the check, first check the valve stem condition, check the sealing surface of the valve plate, and grind if necessary. After inspection and repair, grinding and re-test pressure, you can overcome the non-flawed shut down to allow continued use, belongs to the valve manufacturing plant product quality problems should be returned replacement.
(2) Valve sealing surface defects, including scars, knives, crushing, unevenness, dents, etc., when the depth is less than 0.05mm, available grinding to eliminate; depth greater than 0.05mm, should be processed in the lathe, and then Grinding again, does not allow the use of file or sandpaper grinding and other methods of repair.
(3) After the valve is put into storage, it should be kept in the ground without stacking it. There should be measures to block the rain and snow. The valve should be stored in a vertical way so as to prevent the sundries from entering the valve body. Avoid collisions when transporting the valve.
(4) Flushing after installation of pipelines, the valves which are likely to cause blockage such as regulating valve, thermostatic valve, pressure relief valve core, flow orifice, filter, etc. shall be dismantled and installed after passing the flushing. The direction of pipeline flushing should be correct, to prevent clogging of debris stuck in the pipeline, blocking the valve after the water.
Brake Pads For Porsche,Porsche Brake Pads,Porsche Car Brake Disc,Porsche Brake Shoes
Ningxia Rossking Auto , https://www.rosskingauto.com