About the Installation Tip and Fault Analysis of Diaphragm Vacuum Pump

Diaphragm vacuum pump

Diaphragm vacuum pump refers to a vacuum pump separated by a diaphragm between the mechanical transmission part and the pumped gas, which can provide negative pressure conditions for processes such as evaporation, distillation, crystallization, drying, sublimation, and decompression filtration. As a typical experimental instrument, a diaphragm vacuum pump has an advanced design, high working efficiency, and long service life. It is mainly used in the fields of medical and pharmaceutical product analysis, fine chemicals, biochemical pharmacy, food inspection, and criminal investigation technology. Hawach provided Standard Diaphragm Vacuum Pumps and Anti-Corrosion Diaphragm Vacuum Pump for your choice.

The diaphragm vacuum pump features an advanced design, high working efficiency, and long service life. It is a replacement product integrating high and new technology. Laboratory diaphragm vacuum pump provides vacuum conditions for evaporation, distillation, crystallization, drying, sublimation, filtration, decompression, degassing, as well as solvent recovery, various highly toxic, flammable and explosive, strong acid, strong alkali extraction. In addition to the applicable occasions for circulating water vacuum pumps and rotary vane vacuum pumps, it is also used in the fields of medical and pharmaceutical product analysis, and chemical and so on. It is one of the most commonly used equipment in the laboratory.

SLVPGM033A-Standard-Diaphragm-Vaccum-Pumps (1) SLVPGM050A-Standard-Diaphragm-Vaccum-Pumps SLVPGM100A-T-Anti-Corrosion-Diaphragm-Vaccum-Pumps

Features of HAWACH diaphragm vacuum pump

The material, structure, principles, attachment configuration, product vacuum, and speed pumping performance of gas contact are very different from general vacuum pump products. It had low noise and low vibration: The vacuum diaphragm pump is transmitted with a direct drive power of the motor, no intermediate drive parts, plus the low -breached range and low noise; Each product is equipped with a temperature protection switch. When the temperature inside the body is too high, it will be automatically stopped. After the temperature cools down, it will start to ensure the stability and safety of the system work. Today, HAWACH will mainly discuss the installation tips and Fault analysis of the diaphragm vacuum pump.

Installation tips for laboratory diaphragm vacuum pump

1. The diaphragm vacuum pump should be installed on solid and solid ground, and there should be enough room around it for easy inspection, maintenance, and maintenance.
2. It is recommended to pad shock-absorbing rubber or cast and install bolts at the four corners of the base to ensure the smooth operation of the diaphragm vacuum pump and low vibration.
3. Seal the connection pipeline. For small diaphragm vacuum pumps, metal pipelines can be used to connect the gasket and oil-resistant rubber. For small diaphragm vacuum pumps, vacuum hoses can be used to connect.
4. In the connecting pipeline, the user can install a valve and a vacuum gauge above the air inlet of the diaphragm vacuum pump to check the limit pressure of the diaphragm vacuum pump at any time.
5. Connect the power supply according to the regulations of the motor plate, and install the fuse and thermal relay of suitable specifications.
6. When the diaphragm vacuum pump is energized for trial operation, the motor belt must be removed, and the diaphragm vacuum pump must be turned in the specified direction before use.
7. When the exhaust gas from the diaphragm vacuum pump affects the working environment, a pipeline can be installed at the exhaust port to lead away or an oil mist filter can be installed.

Fault analysis of diaphragm vacuum pump

Problem description 1: Turn on the power switch, but it does not work

Possible reason:
1. The power cord and socket are not well connected;
2. The fuse is damaged.
1. Check the power cord and connect it;
2. Replace the fuse.

Problem description 2: The pump can be started, but the pump cannot work normally

Possible reason:
1. Too low power supply voltage
2. In overheat protection condition for the motor
3. There is residual negative pressure in the pump body and cannot be started
4. The rubber film of the pump body is stiff from the colder outdoors to the indoors.
1. There is air leakage in the filter device or hose
2. There is foreign matter on the pump core film
3. The air inlet of the pump is blocked by liquid crystals
4. Incorrect indication of pressure gauge

Problem description 3: the pump is working normally, but the vacuum degree cannot reach the normal value

Possible reason:
1. Check whether the power supply voltage is 220V;
2. Wait for the motor to cool down and start it later;
3. Depressurize the pump;
4. Separate the pump from the filter device, turn on the power switch of the pump body, idle for one minute, and then the pump can work normally after warming up.
1. Check the filter device and hose to eliminate air leakage;
2. Clean the pump core membrane;
3. Use a needle-like object to clear the outside and the inside of the outlet;
4. Replace the pressure gauge.