Arc gear pump common fault and maintenance

First, the common fault and maintenance methods 1) Symptom: The pump can not discharge Fault causes: a, the opposite direction of rotation; b, suction or discharge valve is closed; c, the inlet without material or pressure is too low; d, viscosity is too high, the pump Can not bite countermeasures: a, confirm the direction of rotation; b, confirm the valve is closed; c, check the valve and pressure gauge; d, check the viscosity of the liquid to low speed operation according to the proportion of speed flow if there is flow, then inflow Insufficient, insufficient pump flow (2) Symptom: Insufficient pump flow Cause of malfunction: a. Suction or discharge valve is closed. B. Inlet pressure is low. C. Outlet line is blocked. D. The valve is closed; b, check the valve is open; c, confirm the discharge is normal; d, tighten; a large number of leaks affect production, should stop running, disassembly inspection; e, check the actual shaft speed; (1) Check all pipe flanges and joints before starting. (2) Disc drive coupling, no friction and collision sound. (3) The first start should be injected into the pump liquid. (4) should be fully open before inhalation and discharge of the valve in the pipeline, closed valve is strictly prohibited to start. (5) After verifying the direction of motor rotation, start the motor.

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