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The Eaton-Williams range of Thermoregulators has been designed
to provide close temperature control for plastic/rubber injection
mould tools, extrusion barrels and other industrial processes
that require accurate heating/cooling.
The heart of each unit comprises of solid state relay controlled
immersion heaters and an indirect heat exchanger to provide process
cooling. The use of solid state relays for heating element control
ensures quiet, reliable and long life operation. Process fluid
circulation is by immersible centrifugal pump providing constant
pressure and flow rate. The process temperature is continually
monitored and regulation of better than ±1°C is achieved
by a micro-processor controller with proportional, integral and
derivative control in both heating and cooling modes.
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There are 7 model sizes in the Thermoregulator range
from 9 to 72kW heating capacity. Models up to 24kW are suitable
for water or synthetic oil. Also available is a high temperature
water unit up to 160°C.
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Features
include: |
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- Peripheral or centrifugal pumps
- Mould drain system
- Mould leak stopper
- Audible alarms
- Insulated stainless steel tank
- Extended alarm relay
- Incoloy heating elements
- Automatic water make-up
- Non-ferrous components
- Pre-coated galvanized steel casing
- Solid state relay heating control
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The controller has an easy to read red LED display for
the process temperature with the process set point displayed below
in green. Red LED arrow indicators show whether the unit is in heating
or cooling mode.
All the Thermoregulators are supplied set with optimum PID loop settings
to suit most applications, however all parameters are fully adjustable.
For oil applications, the controller can be re-rogrammed to give 30%
power output on a short cycle time to control heating element film
temperature, ensuring the oil does not carbonise.
Set point limitation is built into the controller programming.
The units are designed with service/maintenance in mind. The EWTC
09, 18 and 24 units have a hinged top cover for easy access to the
filling pipe (for oil based systems), the manual auto-fill inhibit
valve and for checking pump rotation.
The side and end panels can be easily removed for servicing of the
main components such as the pump and solenoid valves.
Pump Capacity
Pump selection for EWTC09 and EWTC18 models showing both the standard
and available upgrade pumps that can be fitted.
Cooling Capacity
(Water)
Cooling capacity shown here is for the EWTC 09 & 18 units with
cooling water at 11°C and 10L/M
Ramp Up Time
/ Control
Microprocessor PID control and solid state heater switching combine
to offer fast ramp up time with minimal over shoot and precise temperature
control. |
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EWTC Options
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- Higher pressure pump upgrade
- 60Hz pumps
- Communications card
- Enhanced cooling
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Accessories
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- High temperature hoses
- Hose adaptors
- Shut-off valves
- Interface cable (comms)
- Enhanced filtration
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units are designed with service/maintenance in mind. The
EWTC 09, 18 and 24 units have a hinged top cover for easy access to
the filling pipe (for oil based systems), the manual auto-fill inhibit
valve and for checking pump rotation.
The side and end panels can be easily removed for servicing of
the main components such as the pump and solenoid valves. |
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| Model |
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EWTC 09 |
EWTC 18 |
EWTC 24 |
EWTC 36 |
EWTC 48 |
EWTC 60 |
EWTC 72 |
| Heating
Capacity |
kW
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9 |
18 |
24 |
36 |
48 |
60 |
72 |
| Outlet
Temperature (max.) |
° C
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30-90
(Water) & 40-145 (oil) |
30-90
(Water) |
| Heat
Transfer Fluid |
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Water
or Synthetic Oil |
Water
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| Filling
Volume |
litres
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8.5
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15
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30
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40
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| Expansion
Volume |
litres
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5
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5 |
10
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13
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| Cooling
Capacity* |
kW
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20
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26
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84
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115
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146
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167
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| At
Cooling Water Flow |
litres/m
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9.5
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12
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22
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30
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38.5
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44
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| Cooling
Water Temperature |
° C
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11
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| Process
Outlet Temperature |
° C
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90
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| Cooling
Type |
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Indirect
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| Heat
Exchanger Type |
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Coil
Exchanger |
Plate
Heat Exchanger |
| Pump
Capacity |
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| Design
Flow |
litres/m
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20 |
25 |
35
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80
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110
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140
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160
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| Design
Press |
Bar
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1.9
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2.4
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2.8
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2.5
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2.4
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3.3
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3.1
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| Flow
Rate (max.) |
litres/m
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40 |
60 |
70
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142
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200
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200
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200
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| Pressure
(max.) |
Bar
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3.8
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3.8
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5.8
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3.2
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3.1
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4.2
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4.2
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| Power
Consumption |
kW
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0.5
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0.5
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0.75
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0.75
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1.1
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1.5
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1.5
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| Operating
Voltage |
V/Hz
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400v/3
phase/50Hz (control 24v AC) |
| Installed
Load |
kVA
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10 |
21 |
30.9
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45.9
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61.4
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76.9
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91.9
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| Connections
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| Consumer
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BSP
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3/4”
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3/4”
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1”
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1 1/2”
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1 1/2”
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2”
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2”
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| Cooling
Water |
BSP
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1/2”
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1/2”
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3/4”
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3/4”
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1”
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1”
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1”
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| Dimensions
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| Width
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mm
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260
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300
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350
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500
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| Height
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mm
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615
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600
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700
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1100
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| Depth
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mm
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560
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700
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800
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1200
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| Weight
(dry) |
kg
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43 |
44 |
60
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130
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150
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190
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240
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| Colour
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RAL7035
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