Sterlco Micro Series Water Temperature Control Unit - Manual (Page 15)

MICRO Series Water Temperature Control Units Page 15
3-6 Process Water Considerations
Raw Water
Water treatment is vital in any piping system. In some cases, raw water may be
used in the system without problems; in other cases, it can result in large deposits
of scale and corrosion.
The manufacturer offers a complete line of water treatment equipment. Contact
your manufacturer sales representative for water testing and treatment options.
Distilled Water
Non-ferrous (brass, copper, or high-temperature plastic) piping is recommended
for distilled water processes.
Deionized Water
Stainless steel (316 SS minimum) or PVC plastic components must be used with deionized
water. We recommend stainless steel because of the temperature constraints with plastic.
3-7 Making Process Water Connections
Direct Injection
For both types of systems, the connections are basically the
same. On the back of each unit, the connections are labeled appropriately.
Connect the TO PROCESS hookup to the
entrance of the process and the FROM PROCESS hookup to
the exit of the process. Connect the PROCESS WATER
SUPPLY to your plant water supply. Connect the COOLING WATER OUT
line to an open drain, or to the return line of
your central water system.
Make sure you carefully select the connecting lines and connectors between
the temperature control unit and the process to suit the needs and
requirements of your application.
If your unit has a maximum operating temperature of 250ºF (121ºC), the
connecting lines and connectors should have a service rating of at least 250ºF
(121ºC) and 150 psig (1,034.25 kPa/10.34 bars).
TO PROCESS — ¾” NPT
This is the outlet for the tempered water leading to the process being controlled.
FROM PROCESS — ¾” NPT
Water from the process re-enters the MICRO Series system to be tempered and
re-circulated back into the process.
3-8 Making Cooling Water Connections
WATER IN — ¾” NPT
The cooling water supply inlet from a cooling tower, a chiller, or a city
water supply.