38 | INSTALLATION, OPERATION and MAINTENANCE MANUAL
Figure 31: Follower movement
8.5. Pressure Pulsation and Vibration
Piston pumps, gear pumps, valves, etc. must not be able to transfer pressure pulsations
or vibrations to the plate heat exchanger as this can cause fatigue fracture in the plates.
The use of pressure dampers in the pipeline is recommended to minimize this effect.
8.6. Pressure and Temperature Ratings
The pressure and temperature ratings for a specific heat exchanger are listed on the
customer drawing provided with the equipment. These ratings must not be exceeded at
any time during startup or operation.
Over pressure protection must be provided if it is possible that the GPHE could
experience a higher pressure than the maximum allowable working pressure.
Do not exceed the maximum operating pressure or temperature listed on the
customer drawing or damage to the heat exchanger and personnel serious
injury or death may result.
8.7. Hydraulic Shock
The plate heat exchanger could be damaged by any hydraulic shock that occurs during
startup or operating changes. To avoid damage, throttling valves and soft pump starts
are recommended.
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