Common fault causes the prevention and elimination method of valve through broken piston ring and cylinder wear, foreign bodies, with makes the piston gets stuck in the highest position of the following regular cleaning and repairing, piston mechanism was badly damaged should be replaced the disc spring break or lose their tone change in time spring disc stem or plunger in the guide sleeve to a location within the card, the valve is open and timely repair, eliminate sticking phenomenon, can't repair parts should be replaced by pulse valve or the valve stem leakage in the valve seat hole stuck a position, make the pulse Industrial Valves is open, the piston pressure all the time, the disc can't shut down, regular cleaning and checking the pass-through of medium, the control channel due filter; Filters should be intact through valve sealing surface and the pulse valve sealing surface damage or a foreign body between sealing surface grinding seal face, unable to repair should be replace diaphragm, film breakage or its surrounding change regularly diaphragm seal leakage and failure and film; Peripheral seal leakage should be reassembled; Diaphragm, film after damage should be replaced in a timely manner after the valve cavity to small diaphragm channel is clogged, should clean the collapse of the small channel, the valve can't is closed Industrial Valves should be set before the filter and drainage pipe gas bag type control pipe blockage or damage, or charging valve leakage channel control pipe, repair the damaged pipeline and charging valve valve piston stuck by foreign body, corrosion and other reasons in the highest position, can not move down, the disc can't open in addition to the regular cleaning and checking, should be the collapse of the cleaning and repair of fault for the piston air bag type gas bag leakage or air bag inner pressure is too low after find out the reason for repair before the valve cavity to pulse valve and pulse valve to the piston should be small channels is clogged filter, filter damaged should be replaced; Channel congestion should adjust spring dredge clean relaxation or failure, not to displacement of the diaphragm, thin films, the valve cannot open the replace the regulating spring, in accordance with the provisions, pressure regulating Industrial Valves is allowed to adjust the spring pressure force in addition to the above reasons, the valve after pressure adjustment is allowed to have the following reasons: piston untight seal should be replaced grinding or replace the piston ring spring fatigue should be moving parts wear in the valve, the valve normal action blocked the collapse of the repair, replacement can't repair parts, assembly to properly adjust the spring stiffness is too big, after the valve pressure indiscreet choose appropriate adjustment diaphragm spring stiffness, film fatigue replacement diaphragm or film
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