FULTON FT-0080C, Инструкция по установке, эксплуатации, обслуживанию и каталог запасных частей

Страница: 26 / 92

FT-C Vertical Electric Thermal Fluid Heater Manual 12 2013 ISSUE 1
Page 18
2
2.10.6
AIR COOLING
a) Allow for free air flow around the entire pump casing at all times.
b) Maximum room temperature should be 38°C.
c) In no case should any part of the drive side of the pump be insulated.
d) Maximum operating temperature for air cooled pumps varies by manufacturer. Consult
instruction manual to verify.
2.10.7
WATER COOLING
a) A throttling needle valve should be installed on the inlet side of the water cooling passages and
adjusted so that the outlet water is between 49°C. and 71°C. Typically this means a flow rate of
0.1 l/s - 0.3 l/s at 4°C inlet temperature. Consult pump manufacturer’s specifications for
dimensions of water cooling connection.
b) The throttling valve on a water cooled pump is designed to automatically give the proper flow
rate for a 2.75 barg or greater supply.
c) If a minimum of 2.75 barg is not available, consult Fulton Ltd. about re-sizing the orifice. If the
temperature of the cooling water is greater than 13 °C to begin with, a correspondingly greater
flow rate is required.
d) For automatic operation of water cooling, wire a solenoid valve on the inlet to open whenever
the pump motor starter is energised.
e) The outlet flow from the pump must not be restricted in any manner. Therefore, valves are not to
be installed on the outlet. Check local codes regarding disposal of hot water.
2.10.5
SEALS
All seals on air cooled pumps are lubricated by thermal fluid, therefore the pump must never be run
dry, i.e. without thermal fluid in it.
Filling a pump equipped with either a Grafoil packed or mechanical seal with thermal fluid will
ensure lubrication. However, in order to be certain that all seals on an air cooled pump are coated
with thermal fluid, the pump must be bled.
Grafoil packings require a run-in procedure. Typically, pumps with these seals are shipped with four
or five rings installed and several rings loose. These extra rings must be on hand for the initial
run-in procedure. See manufacturer’s instruction manual for this procedure.