Flo Fab S Series Manuale di funzionamento, manutenzione e installazione - Pagina 6

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SINCE 1981
The S and W-models are designed for horizontal installation. If space is a constraint and vertical
installation is required, please inform the sales office.
-
Before piping up, inspect all openings in the heat exchanger for foreign material.
Remove all plugs and shipping covers immediately prior to installation.
Do not expose the interior passages of the heat exchanger to. the atmosphere
as moisture and contaminants may enter the unit and cause damage to the system.
-
Mounting saddles are attached to the standard unit for quick and easy installation.
-
When installing, set heat exchanger level to the ground to ensure no excess
force is required to connect to the system. Install the heat exchanger in a manner where
it will not be exposed to mechanical stresses or moments.
VI. STARTUP/SHUTDOWN
In all startup and shutdown operations, fluid flows should be gradual and regulated to avoid
thennal shocking the unit, and every effort should be made to prevent subjecting the heat ex-
changer to overpressure or hydraulic hammers, as these conditions may impose stresses on the
unit that could result in structural damages.
Start-Up:
- Valves should be opened gradually in order to achieve a steady increase in flow and pres
sure into the unit. The pressure increase/decrease should not exceed
72 psi/min (0.5 MPa/min).
- The cold (heated) fluid should first enter into the system.
- The hot (heating) fluid, water or steam, should be gradually brought into the system.
- Check all connections for leaks.
Shut-Down:
- Shut down hot fluid side first, then the cold fluid side.
VII. OPERATION
Heat exchangers should be used according to the specifications given and within pressure and
temperature ranges not exceeding the limits set forth in the section «Operating Parameters &
Selection of Heat Exchangers».
1.
Ensure that the system is clean of debris before starting operation to prevent clogging
of tube and shell side passages.
2.
Open vent connections before starting up.
3.
Follow the instructions in the section «Startup/Shutdown».
4.
After the system is completely filled with the operating fluid, close all manual vent
connections.
5.
Do not operate the heat exchanger under pressure and temperature conditions
exceeding the maximum allowable limit (as specified on the nameplate).
6.
Prevent any of the fluids form dropping below their freezing point.
7.
Drain all fluids when shutting down to prevent possible freezing and corrosion.
I.O.M - HEAT EXCHANGERS : SHELL & TUBE, S/W