Sterlco 6017 Series, Operation And Installation Manual

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Page 10 6017 Series Hot Oil Large Temperature Control Units
Heater Tank
The 6017 features a single pass heater tank. The tank is designed
to maintain an optimum balance of fluid velocity versus watt
density, and turbulence for excellent heat transfer, and minimal
pressure drop. The high fluid velocity will greatly prolong the life
of the heater and fluid.
Pump
The pump is a packed, positive displacement pump. It features a
nearly failure free design, and has proven itself after years of
dependable service. It is well suited for use with a variety of
commercially available heat transfer fluids. The pump has only
two internal moving parts, and a specially designed seal to give
years of trouble free service, even at high temperatures. The only
routine maintenance required is weekly greasing and occasional
packing and headspace adjustment; see Chapter 6 on Page 47 for
more information.
The pump is capable of running in either direction. Thus, the pump
reverse feature can be used to draw fluids back from the process. It
is not necessary to install a service air line to purge the lines before
changing molds. Since the pump is capable of achieving extremely
high pressures, it is necessary to regulate the pressure through use
of a regulating by-pass line (Fulflo valve). Because the pump is a
positive displacement pump, it will supply the process with rated
flow at or below the rated pressure.
The flow is constant until the pressure reaches the rated pressure.
The pressure however is a function of frictional losses through the
process that it is attached to. Systems with large process
connections, ports, and piping will operate at low pressures. While
systems with small process connections, ports, and piping will
operate at higher pressures. Once the pressure requirements exceed
the rated pressure, the fulflow valve will open and bypass the
necessary fluid to prevent high pressures.
Ful-Flo Valve
A regulating by-pass line featuring a Fulflo valve is standard in all
units. This is a safety device to prevent excessive pressure in the
event that the delivery line is obstructed. Each Fulflo is factory
preset to limit system pressure as specified by the customer. It
must not be tampered with in any way.