News

The pump does not start

1. The pump is not connected to the network

2. The mains voltage does not match the working voltage of the pump

3. The motor does not work

4. Electrical protection circuit breaker tripped

5. Oil temperature is lower than +10℃

6. Working components are stuck

7. The pump pumps corrosive vapor, causing corrosion or rust of working parts.

1.Connect the pump to the network. Check the switch.

2. The power supply voltage must be within 10% of the rated voltage

3. Replace the motor

4. Turn the machine to the working position

5. Heat the oil

6. Contact us.

7. Contact us.

The pump does not reach the specified residual pressure

1. The pump is too small for your system (the pump volume is too large)

2. Connection leakage

3. The measuring equipment is faulty

4. Low oil level

5. The oil is inappropriate or the oil is contaminated

6. The suction line is blocked

7. The suction check valve is clogged

1. Replace the pump with a more powerful one

2. Check and fix system leaks

3. Replace measuring tools

4. Add oil according to instructions

5. Change oil

6. Clean the suction pipe

7. Eliminate the cause of valve blockage.

Low pump performance

1. Suction pipeline blocked

2. The suction pipe is too long or too narrow

3. The exhaust pipe is blocked

4. The exhaust filter is clogged (if installed)

1. Clean the suction line

2. Shorten the suction pipe or increase the pipe diameter

3. Clean the exhaust pipe

4. Clean the filter

Increased noise/unusual noise from a running pump

1. Incorrect power supply voltage

2. There is foreign matter in the pump

3. Low oil level

4. The coupling connecting the pump and the electric drive is worn.

5. Internal damage to the pump

1. Check whether the main power supply voltage matches the working voltage of the pump

2. Remove foreign objects

3. Come on

4. Replace the coupling

5. Contact us

The pump is running hotter than usual

1. The pump operates at high pressure close to atmospheric pressure for a long time.

2. Low oil level

3. The pumping medium is overheated

4. Poor pump cooling

5. Water pump fan failure

6. The oil circulation channel is blocked

7. The ambient temperature is too high

1. Reduce the operating time in this mode

2. Come on

3. Install a cooler on the suction line

4. Create conditions for normal cooling of the water pump

5. Replace the fan impeller

6. Contact the service center

7. Reduce the ambient air temperature. The ambient temperature must comply with the pump's rated data

There is oil in the vacuum system

1.Oil in the container, gas is extracted from the container

2.The check valve in the suction pipe is not closed.

1. Drain the oil from the container.

2. Eliminate the cause of valve failure (foreign objects may enter it)

After turning off the pump, the pressure in the system rises too fast

1. System leakage

2. The check valve is not closed

1. Repair the leak

2. Eliminate the cause of the valve failure (foreign matter may enter the valve).

Too much oil in the exhaust pipe

1. The amount of oil in the pump exceeds the required amount

2. The pump runs for too long under high inlet pressure.

1. Follow the instructions to adjust the oil level to the required oil level.

Oil leakage at the connection between pump and electric driver

Shaft seal failure

   Replace the seal