Specifications

HOW IT WORKS:
C
LOSED CIRCUIT
Thermolator TW-1 and TW-2 UGH015/0100
2-4 DESCRIPTION
Return Thermocouple
Heater
Supply Thermocouple
To Process
From Process
Cooling Water In
Cooling Water Out
Vent
Valve
Cooling
Valve
Relief
Valve
Cooling Heat
Exchanger
Pump
Closed Circuit
Check valves included only with
optional mold purge.
Compressed
Air Connection
Mold Purge
Solenoid Valves
(optional)
Return
Pressure
Gauge
Supply
Pressure
Gauge
Process Vent/Fill Line
Process Vent Line
Check
Valve
Check
Valve
A
B
The temperature of the process
fluid is measured as it leaves
the unit’s heater tank. The fluid
then flows through the “To
Process” line to the mold or
process. The fluid returns to the
unit through the “From Process”
line for reheating or cooling.
1
A
B
C
D
3b
If the process temperature
is below the setpoint, the
heater elements inside the
heater tank are energized.
E
F
4
The pump moves water from the
mixing tank to the heater tank.
Pressure is measured before
and after the pump .
E
F
The temperature of
the process fluid is
measured as it flows
into the cooling tank
through the “From
Process” line .
2
B
3a
If the temperature is above
the setpoint value, the cooling
valve opens. Cool water
enters the cooling piping
and circulates through a tube
heat exchanger to cool the
process fluid. The cooling
valve allows warm fluid to
escape through the process
vent line via the “Cooling Out”
line and cooling make-up
water to enter through the
“Cooling In” line .
C
D
Closed Circuit models maintain the process temperature by
heating and cooling fluid for the process circuit. Cooling
water supplied by a chiller, tower or other water source, is
mixed with the process fluid only during the initial filling
or when water is needed to make up process fluid loss.
C