Temptek VETERAN LS Series, Инструкция по эксплуатации

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Temperature Control Units : With ‘LS’ Series Instrument
Page: 57
TEMPTEK, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-6352 Fax: 317-881-1277
Service Department Fax: 317-885-8683
www.Temptek.com
6. Pump seal flush. The
pump seal flush is a flow
diverter which serves to
“cleanse” the pump seal
assembly of debris which
may lodge on the seal and
create a leak (figure 6.1D).
B. HEATER. The heater is a dual
voltage, flange mounted immersion
heater set in the pump discharge
cylinder. The heater elements have
a stainless steel sheath. Electrical
supply to the heater is provided via
a mercury contactor (figure 6.1E).
C. HEATER/PUMP DISCHARGE
CYLINDER. The heater/pump
discharge cylinder is a custom cast
tank. The tank is flanged mounted
to the pump casing. Reinforced
machined bosses accept the “to
process/high temperature limit”
sensor probe and the “to process”
connection (figure 6.1E).
D. COOLING CYLINDER. The cooling
cylinder is a custom cast tank.
The tank is flanged mounted to
pump casing. Reinforced machined
bosses accept the pressure relief
valve, the “from process” pressure
gauge and pressure switch
capillary connector, PVT
TM
solenoid
cooling valve, the “water supply
connection” and the “from process”
connection (figure 6.1F).
E. PRESSURE RELIEF VALVE. The pressure relief valve
is a 150 psi relief valve serving to discharge excessive unit pressure
to atmosphere. The valve can be manually activated by lifting the
actuating lever (figure 6.1F).
F. PVT
TM
VALVE. The PVT
TM
valve is a microprocessor control
solenoid valve use to discharge heated process water to drain as
needed to control process temperature.
G. PRESSURE GAUGES. “To” and “from” process pressure gauges
display the system pressure. “To process” pressure originates at the
heat/pump discharge cylinder. “From process” pressure originates
at the cooling cylinder. The gauges accurately display system
pressures from 0 to 160 PSI (figure 6.1G).
Seal flush tube
Figure 6.1D
Heater
Figure 6.1E
PVT valve
Figure 6.1F
Discharge tank