EN - 6
3. INSTALLATION
Before commencing any work, read this handbook carefully
and keep it within reach for further reference.
3.1 - Choice of installation location
The intended location of the unit should be fully accessible so as to ease servicing and maintenance operations and allow easy
removal of the plates from the side of the unit (Fig. 3).
Adequate clearance must be left in front of the safety and control devices.
3.2 - Installation recommendations
- CIAT plate heat exchangers have a limited operating pressure and temperature range. Install all the necessary safety devices to
prevent overrunning the limits specified on the order documents. Approval to use the plate heat exchangers in different conditions from
those detailed must be obtained from CIAT. It is recommended to fit pressure and temperature test points near the unit.
- Make sure that the heat exchanger is compliant with the safety standards in force at the installation location (explosive atmosphere,
etc.).
- Install burn hazard signs wherever the surface temperature of pipes exceeds 60°C.
- If the heat exchanger is to be installed on framework, the structure must be designed to withstand the weight of the exchanger when
in operation (filled) and with its accessories.
- If necessary, affix the hazard symbol corresponding to the fluid in accordance with applicable standards.
- Take all appropriate steps to mitigate the effects of any significant human, environmental or financial consequences of failure.
- Make sure that the heat exchanger is always installed vertically, is stable, and secured using all its anchorage points. If necessary, fit
additional anchors suitable for the foreseeable stresses.
- Install bleed valves, shut-off valves, and fill and drain valves on the pipes so that the heat exchanger can be serviced without
disrupting the system.
- In the event of seasonal use, drain the heat exchanger completely to prevent any risk of freezing or corrosion if a corrosive fluid is
used.
- If accessories are installed on the heat exchanger, refer to their specific instructions.
3.3 - Hydraulic connections
- To keep the insides of the pipes clean, do not remove the seals on their ends until you are ready to make the hydraulic connections.
- The insides of the pipes must be free of all foreign matter (sand, welding slag, other solid matter, etc.) that could damage the plates
and gaskets.
- Filtration: If the fluids to be circulated through the heat exchanger contain suspended matter, a filtration system of up to 500 µm must
be installed.
- Check the tightening dimension specified on the data plate. Refer to section 5.7 if retightening is needed.
- Make the hydraulic connections as instructed on the label on the frame or on the plate arrangement drawing.
- Never insert foreign matter into the circuit.
- No strain should be placed on the pipes (weight of connected pipes, expansion, vibrations etc.).
- If threaded couplings are used, do not apply the tightening torque to the threaded nozzles.
- Threaded couplings are not welded to the fixed head. To avoid damaging the first gasket, hold the
threaded couplings in place with pliers and screw on the pipes (Fig.4).
- If the ports on the fixed head are fitted with protective built-in linings, the linings must be sufficiently
compressed so that the head and the counter-flange are separated by a 2 mm gap (tightening any further
will damage the linings).
- In the case of a multi-pass heat exchanger (fluid inlet and outlet ports on both ends): install a
compensator or expansion joint and use removable pipes so that more plates can be added and the
movable follower can be removed.
Minimum recommended value (mm)
Model
A
DN32
700
DN65
1000
DN100
1500
DN150
1500
DN200
2000
Fig.3
Fig.4
A
Summary of Contents for ITEX NA 10.51 D
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