SPP Pumps Transformer Oil Pumps - Manual (Page 8)

Manual No/Rev
W61-001E / 9
Operators Instructions for
Transformer Oil Pumps
Our policy is one of continuous improvement and we reserve the right to alter specifications without giving notice.
Page 6
and discharge pipework support the pump; in others lugs, or tapped bosses,
act as mountings.
Pumps with single phase motors usually have the capacitor carried in an
enlarged terminal box, but with larger pumps it may be arranged for
separate mounting.
Pump rotation is counterclockwise when viewed through the suction port
(impeller end). The casing has separate markings showing direction of
rotation and oil flow. Some pumps are also fitted with a visual rotation
indicator.
3.2
Pump Capacity and Performance
Each SPP Pumps Limited Type AT pump is individually tested using
transformer Dielectric Fluid to BS148.
The pump Data plate is stamped with the pump capacity in litres/second at a
stated head in metres. Additionally, the Data plate states the motor full load
current and speed.
3.3
The Pipework System
The pipework layout should be designed and supported so that no forces
and moments are transmitted to the pump flanges, either during installation
or in use (e.g. through thermal expansion). For pumps without mounting
lugs or bosses, the pipework should be capable of fully supporting the pump.
Avoid sharp bends, abrupt changes in pipe sections, etc., particularly close
to the pump.
Section 4.0 Installation
BEFORE ATTEMPTING TO INSTALL, OPERATE OR MAINTAIN A TYPE
'AT' PUMP, READ THIS MANUAL CAREFULLY AND ENSURE THAT THE
CONTENTS
ARE FULLY UNDERSTOOD, ESPECIALLY THE
PROCEDURES RELATING TO THE WORK BEING DONE. FAILURE TO
DO SO MAY RESULT IN DAMAGE TO THE PUMP AND RISK TO LIFE.