Starting and running plate heat exchangers must take into account the following points:

Working pressure
Pump start-up
Pressure Vibration and Oscillation
Leakage during startup
Dry by airing
Pressure increase and temperature change
Leakage during operation
Long-term cessation of work

Working pressure

There is a nameplate on the fixed clamping plate of plate heat exchanger. The maximum working pressure of plate heat exchanger is indicated in the nameplate and can not exceed the maximum working pressure.

Pump start-up

When starting the pump, all other valves should be closed and opened slowly after starting to avoid excessive flow and pressure.
Pressure Vibration and Oscillation
Pressure oscillation and oscillation caused by pump or other equipment can not be transmitted to plate heat exchanger. If it is transmitted to plate heat exchanger, plate cracks may occur.

Leakage during startup

Leakages may occur during startup.
When gaskets and plates reach operating temperature, the pressure of plate heat exchanger is supplemented, and the leakage will stop.

Dry by airing

Gas in plate heat exchanger reduces heat transfer and increases pressure loss. Therefore, plate heat exchangers must be dried.

Pressure increase and temperature change

Pressure and temperature must be controlled during operation.
The increase of pressure drop and the decrease of heat transfer efficiency indicate that some sediments are adhering to the plate and must be removed. See page 10 for details on cleaning plate heat exchangers.
Leakage during operation
See Title named troubleshooting

Long-term cessation of work

If plate heat exchanger is not used for a long time, it should be emptied and cleaned up. After emptying and cleaning board replacement, it should be gently tightened and covered with a black plastic sheet to prevent the gasket from being damaged by sunlight. Before the plate heat exchanger is put into use again, the plate should be closely matched according to the clamping size.