Italian PIUSI electronic grade diaphragm pump pressure imbalance maintenance tutorial

Italian PIUSI electronic grade diaphragm pump pressure imbalance repair tutorial:
When the direction of the oil port is not suitable and inexperienced customers adjust it themselves, if the pump core is not inserted into the small hole (caused by pulling it out during rotation), the space of the oil pump suction port will shrink, and the oil suction will be obstructed and not smooth. This is manifested as excessive noise, pressure swing, long-term use will cause the oil temperature to rise too quickly, and the curve inside the stator will be impacted into a ripple shape, which will shorten the service life
High pressure pumps and other moving parts suddenly switch from high speed to low speed. Due to the action of inertia force, the moving parts need to move forward for a certain distance before moving at the set working speed at low speed. This phenomenon is called forward thrust. So why does the throttle speed control valve of the high pressure pump have forward thrust? How to eliminate and solve it? The daily editor will explain to you the analysis and troubleshooting methods for the front flushing of the throttle speed control valve of the high-pressure pump. The following are the reasons: the flow rate of the high-pressure pump changes too quickly, and the sudden change in flow rate causes a sudden increase in the output pressure of the pump, resulting in impact. The typical viscosity range of the piston pump is 10 to 160 CST working temperature. The electric diaphragm pump is a mechanical pump that uses electric power to transport various liquids, gases, or mixtures. It has many advantages, such as simple structure, convenience, and low maintenance cost. Its working principle is to drive the piston rod to move through an electric motor, which in turn drives the diaphragm to vibrate up and down. When the piston rod moves upward, the back diaphragm is compressed and the outlet valve is opened; When the piston rod moves downwards, the back diaphragm returns to its normal shape and sucks in fluid. This cyclic operation can achieve fluid transport.

Italian PIUSI electronic grade diaphragm pump pressure imbalance maintenance tutorial
1. Leakage - When an electric diaphragm pump leaks, the first thing to check is whether the seals are worn, aged, or loose.
2. Cannot start normally - If the pump cannot start, it may be caused by a power failure. At this point, it is necessary to check whether the power supply lines and switches are working properly and eliminate any power supply issues.
3. Abnormal noise during operation - When the diaphragm pump produces abnormal noise during operation, it may be caused by bearing damage.
4. Decreased flow or unstable pressure - If a decrease in flow or unstable pressure is found, the first thing to check is whether there is blockage or accumulation in the pump body.
5. Unstable operation - When the electric diaphragm pump shakes or shakes during operation, it may be caused by an unstable base.
The length of the four screws used to install the control valve should be at least twice the diameter of the screws. This type of malfunction can be eliminated by removing the uncleaned burrs, cleaning each component, and replacing the sealing components; Some serious cases may cause "cylinder pulling", which makes troubleshooting more complicated; More serious cases may lead to cylinder barrel scrapping
At the same time, they also adjusted the overall flow regulation of the variable pump to ensure its normal operation
In addition, many phosphate fertilizer enterprises require a large pumping capacity even when the pressure is between 80-10OhPa. Therefore, two-stage water ring pumps and two-stage water ring pumps with atmospheric injectors have advantages when used in this working condition. Many fertilizer enterprises have eliminated reciprocating pumps with high vibration noise and vacuum degree, and replaced them with two-stage water ring pumps, which have achieved good results. It can be said that two-stage water ring pumps will be increasingly widely used in this industry. Electric hydraulic directional valves with damping current valves can be used to adjust the damping size to slow down the speed conversion of high-pressure pumps, which can reduce the overshoot to a certain extent. By using a stroke valve for conversion, the impact of the high-pressure pump is relatively small.

A high-pressure pump with a sound pressure level exceeding 90dB (A) produces very loud noise, and around 60dB (A) is considered relatively safe. After cooling, tighten the pipe joints at both ends separately. Pay attention to lifting the steel pipe at this time, so that the nut presses the 'connecting pipe' firmly. After the two ends are connected firmly, saw off the long part;
At this point, it is necessary to correct the electrical circuit to ensure its correct connection. If the sealing ring is cut or the screws are not tightened evenly during rotation, oil leakage may occur. ③ Water pollution: Due to factors such as humid working environment, water may enter the hydraulic system, react with the hydraulic oil, form acidic substances and sludge, reduce the lubrication performance of the hydraulic oil, accelerate component wear, and cause the valve stem of the control valve to bond, making it difficult to operate the control valve, scratching the seals, and causing leakage
The key to maintaining and repairing electric diaphragm pumps is to promptly identify problems and take corresponding measures. For some complex fault situations, it is recommended to seek the help of professional technicians to solve the problem. At the same time, it is important to regularly clean, lubricate, and inspect the equipment during daily use, and to avoid incorrect and overloaded use, in order to extend the service life of the electric diaphragm pump and ensure its normal operation.

WhiteKnight Four Cylinder Diaphragm Pump Leakage Repair Service Center