Concerned about surprises Label: Plunger o-ring seal case temperature pressure pulsation check valve Previous: How to buy air compressor correctly Next: Advantages and disadvantages of gate valve Kitchen Faucets With Sidespray Kitchen Faucets With Sidespray,Kitchen Faucets With Sidespray Price,Kitchen Faucets With Sidespray Product Yuyao Zelin Sanitary Ware Co., Ltd , https://www.zelinfaucets.com malfunction cause Method of exclusion No pressure or pressure after starting 1. The middle and lower orifices of the pilot valve are blocked;
2. The main valve of the unloading valve is stuck or damaged.
3. The seal ring at the thrust piston is damaged;
4. The unloading valve pilot valve is stuck or damaged. 1. Unblock the throttle block;
2. Check if the main valve is stuck or damaged;
3. Replace the seal ring at the thrust piston;
4. Check if the pilot valve is stuck or damaged; Pressure pulsation is large, flow is insufficient or no flow, even pipe vibration, serious noise 1. The air in the pump suction chamber is not drained;
2. At the plunger seal ring, the air intake when sucking liquid;
3. The liquid suction hose is too long or too long;
4. The spring of the suction and discharge valve is broken or the spool is damaged;
5. The suction valve screw plug is not tightened;
6. The liquid suction filter of the liquid tank is blocked; 1. Loosen the pump bleed screw and release the heavy air;
2. Take out the drain valve and fill the plunger chamber with liquid;
3. Change the suction hose or eliminate the dead bend;
4. Replace the spring or replace the valve core;
5. Tighten the suction valve screw plug;
6. The liquid suction filter of the cleaning liquid tank; Severe leak in the plunger seal 1. The plunger seal ring is worn or damaged;
2. The surface of the plunger is severely scratched and pulled; 1. Replace the seal ring;
2. Replace or repair the plunger; The pump is running with loud noise and percussive sound 1. The bearing bush clearance is increased;
2. There are debris in the pump;
3. The axis of the motor and the pump are different;
4. There is a gap between the plunger and the pressure block; 1. Replace the bearing bush;
2, clear debris;
3. Adjust the motor and pump to make it coaxial;
4. Tighten the compression nut; The cabinet temperature is too high 1. The lubricating oil is too dirty or insufficient;
2. Damage to the bearing pad or cranking of the crankshaft; 1. Refuel or clean the oil pool and change the oil;
2. Repair the crankshaft and change the bearing bush; The pump pressure suddenly rises above the unloading valve setting pressure or the safety valve setting pressure 1. The upper or lower throttle plug of the pilot valve is blocked;
2. The pressure regulating screw sleeve of the pilot valve is mis-adjusted;
3. The safety valve fails; 1. Unblock the throttle block;
2. Reset the pressure;
3. Check and adjust or replace the safety valve; The unloading valve moves frequently when the bracket stops feeding 1. The leakage of the stent system is serious;
2. The unloading valve check valve leaks;
3. Pilot valve leakage; 1. Eliminate the leaking part of the working surface bracket;
2. Check and replace the check valve;
3. Check the valve surface and seal of the pilot valve; High emulsion temperature 1. The sealing ring of the pilot valve is damaged;
2. There is overflow at the check valve; 1. Check the o-ring seal of the pilot valve;
2. Check the check valve for damage; 