Professional Industrial Valves Manufacturer

Pressure reducing valve failure and elimination method

by:Mech     2020-08-07
Fault phenomenon: pressure fluctuations unstable failure analysis: 1, the oil mixed with air. 2, damping hole jam sometimes. 3, slide valve and valve body hole roundness in excess of that specified, the valve is stuck. Four, spring deformation or stuck in the valve, the valve movement difficulties or spring is too soft. 5, steel ball is not round, steel ball and valve seat or bad cooperation cone valve installation is not correct. Method: 1, remove oil in the air. 2, clean the damping hole. 3, grind the valve hole and the valve. 4, replace the spring. 5, replace the steel ball, or open cone valve adjustment. Pressure reducing Industrial Valves failure phenomenon: secondary pressure rise is not high failure analysis: 1, outside leakage. 2, taper valve and valve seat poor contact. Method: 1, replacement of seals, fastening screws, and ensure the moment of force. 2, repair or replacement. Pressure reducing Industrial Valves failure phenomenon: can't afford to reduce pressure failure analysis: 1, drainage barrier; Drain pipe connected to the return pipe and oil pressure. 2, the main valve core card in the full open position. Elimination method: 1, the drain pipe must be separated from oil return pipe, a separate back into the tank. 2, repair and replacement parts, check the oil.
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