ITT Goulds 3655, Инструкции по установке, эксплуатации и обслуживанию, Страница: 13 / 31

2 Installation
2.1 Location
Pumping unit should be placed as close as practical to the source of supply. Head room and floor space
allotted to the pump should be sufficient for inspection and maintenance.
2.2 Foundation
The foundation should be substantial in order to absorb any vibration and to form a permanent rigid sup-
port for the pump.
2.3 Mounting pump
The close-coupled pump may be mounted in any horizontal or vertical position except with pump above
motor. Its construction with the pump installed on the extended motor shaft eliminates coupling and the
alignment procedures normally involved.
Group "S" and "M" pumps have two hold down bolt holes in the motor adapter foot (108). Group "L"
pumps have two hold down bolt holes in the pump foot. All pumps have four hold down bolt holes in the
motor feet.
Depending upon the motor frame, the adapter or pump foot may be higher or lower than the motor feet.
Shim as required, then bolt all feet securely to foundation. Be careful not to twist or distort feet.
2.4 Piping - general
1. All piping must be supported independently of the pump. The piping should always "line-up" natu-
rally with the pump flanges. Never draw the piping into place by use of force at the flanged suc-
tion and discharge connections of the pump.
2. The piping, both suction and discharge, should be as short and direct as possible. Avoid all un-
necessary elbows, bends and fittings, as they increase the friction losses in the piping. The size
of pipe and fittings should be carefully selected and of sufficient size to keep the friction losses as
low as practical.
3. Piping must not be connected to the pump until the pump unit hold down bolts have been tight-
ened.
4. When handling liquids at elevated temperatures, arrangements must be made for expansion
loops or expansion joints so that the linear expansion of the pipe will not cause the pumping unit.
to be drawn out of alignment.
2 Installation
3655 Installation, Operation and Maintenance Instructions 11