Sterlco 6017 Series, Operation And Installation Manual

Page: 12 / 71

6017 Series Hot Oil Large Temperature Control Units Page 11
In the event of an obstruction in the line, the Fulflo will open and
divert fluid from the delivery
TO PROCESS
line to the return
From Process line. A constant flow of fluid is maintained through
the heater tank to prevent damage to the heating elements and
fluid.
Cooling
Optional
The Sterlco-designed shell and tube heat exchanger is provided as
optional equipment in this unit. The design features U-tube
construction and copper-nickel tubes for durability and optimal
heat transfer.
The modular construction (unique to Sterlco units) allows the tube
bundle to be easily removed for periodic cleaning. Additionally,
check valves are installed on the water supply and drain lines to
prevent water from back flowing into the heat exchanger from a
closed drain or into the water supply piping.
The controller automatically regulates cooling by opening and
closing the cooling solenoid. This allows the proper amount of oil
to pass over the tubes of the heat exchanger. A water supply of 75
psi (517.1 kPa/5.2 bars) maximum is required for connection to the
heat exchanger.
Connection Lines
Connections for
TO PROCESS
and
FROM PROCESS
lines are:
•
2" NPT (50.8 mm) at 90 gpm (341 lpm)
•
2-1/2" NPT (63.5 mm) at 150 gpm (568 lpm)
•
3" NPT (76.2 mm) at 200 gpm (757 lpm)
Water connections for
COOLING WATER SUPPLY
and
COOLING WATER DRAIN
are:
•
¾” NPT (19.1 mm) for 3.9 & 6.7 sq. ft. heat exchangers.
•
1" NPT (25.4 mm) for 13, 21, & 27 sq. ft. heat exchangers.
(See Chapter 3.) The customer is responsible for conversions to
metric standards.