P2
CAUTION
Do NOT touch the side of plate pack and heat transfer plate edge.
The edge of a heat transfer plate is very sharp and may cut you.
Be sure to wear cut-resistant gloves whenever touching heat transfer
plate.
Do NOT freeze.
If freezing occurs in PHE, the heat transfer plates may be damaged.
Drain out completely to avoid freezing in case of preservation in cold
areas. In warm areas, if storing the equipment for a long time, store it
with liquid at full capacity.
Do NOT place objects on plate pack.
It may cause deformation of heat transfer plate.
Falling object may cause injury during operation.
If using a pump with specifications in excess of the PHE's design
pressure, install a safety device on the pump's delivery side or the
PHE's inlet or outlet.
Even if not required by applicable code and regulation, a safety device is
necessary to protect the equipment.
Do NOT make heat transfer plate edge deform by contacting with
surrounding object.
Deformation of the heat transfer plate may cause damage on plate
gasket and result in leakage.
Secure working space around PHE.
Adequate piping design is required, taking into account the working
space for disassembly and tightening device.
Do NOT shorten guide bar by cutting.
It makes disassembling of the PHE impossible. Perform maintenance of PHE that handle dangerous fluids, such as
a strong acid or strong alkaline, in an environment that has drain
water treatment equipment.
Waste media in accordance with laws, codes and regulations. Be careful
not to drain liquid into a river or ocean area.
If untreated liquid leaks, take measures in accordance with the "Material
Safety Data Sheet (MSDS)" for the treatment liquid you used.
In general, do NOT remove stud bolt of connection.
It may cause damage on the threads.
Stud bolt is to be removed very carefully not to make any damage on the
threads of both stud bolt and its hole at your own risk, only when it is
absolutely necessary.
Do NOT weld or attach any piping support onto the frame, guide
bar, and/or guide bar support.
Welding causes thermal damage on plate gaskets and attached parts
may interrupt handling when disassembling.
In case of inner strainer is inserted PHE, remove it at the time of the
back wash.
It may cause damage on the inner strainer.
Do NOT enter debris or foreign materials into PHE.
Install a strainer on upstream to prevent clogging in PHE.
When flushing pipes for commissioning operation, install a temporary
strainer or provide bypass on upstream PHE in order to prevent debris
or foreign materials into PHE.
Remove the smell of gaskets and/or adhesive by hot water cleaning
inner of PHE in order to prevent the fluid from absorbing these
smells.
Fluid may absorb the smell of plate gaskets and/or adhesive when
PHE is newly installed or plate gaskets are replaced.
To avoid above, clean the inner of PHE using hot water and remove the
smell. In case of applying F-2 adhesive for food product use, cleaning
with 80℃hot water and 8 hours is recommended as a minimum.
Do NOT start and stop the pump frequently (in a short time).
During commissioning, pay attention to time duration of pump start/stop,
or there would be leakage due to difficulty of gasket restoration caused
by temperature and pressure variation. After stopping, min. 3 minutes is
recommended to restart.
Open and close the valve slowly so as not to create a sudden pressure
fluctuation.
Do NOT operate in excess of the design conditions (temperature,
flow rate, pressure, etc.).
It may cause deformation of the heat transfer plates or leakage. Also,
the required performance may not be achieved.
Do NOT apply impact pressure and instantaneous pressure
fluctuation.
Do not apply impact pressure and instantaneous pressure fluctuation to
PHE, such as from starting-up of pump, sudden close of valve, or by
steam hammer occurred. Deformation, cracks, or leaks in the heat
transfer plates are possible if long time repeated pressure pulsation
within few seconds
Do NOT apply instantaneous negative pressure.
Drawdown may occur if instantaneous negative pressure is applied to
the PHE by pump stop or valve closing, or heat transfer plates
deformation may also.
