Armstrong 4360 설치 및 운영 지침 매뉴얼 - 페이지 6

{카테고리_이름} Armstrong 4360에 대한 설치 및 운영 지침 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Armstrong 4360 14 페이지. Vertical in-line pump
Armstrong 4360에 대해서도 마찬가지입니다: 설치 및 운영 지침 매뉴얼 (12 페이지)

페이지 인쇄

i n sta l l at i on &

op era t i ng i n str u ct i on s

Remove coupling guard and place lifting straps on each side of coupling,

use spacer bar if necessary to protect motor fan cover.

important:

Do not run the pump for any length of time under

very low flow conditions or with the discharge valve

closed. This could cause the water in the casing to

reach super heated steam conditions, cause premature failure

and cause serious and dramatic damage to the pump and

surrounding area.

2.0 installation

2 .1 location

In open systems, locate the unit as close as practical to the

liquid being pumped, with a short, direct suction pipe. Ensure

adequate space is left above and around the unit for operation,

maintenance, service and inspection of parts.

In closed systems, where possible, the pumps should be in-

stalled immediately downstream of the expansion tank/make-

up connection. This is the point of zero pressure change and

is necessary for effective pump operation. Do not install more

than one expansion tank connection into any closed

hydronic system.

Electric motor driven pumps should not be located in damp or

dusty locations without special protection.

Airflow into the motor and/or motor fan should

not be obstructed.

Commercial pumps Series 4300, 4360 and 4380

Vertical In–Line pumps

2 . 2 installation

When installing Vertical In-Line pumps, an important consid-

eration to accrue full added-value from the pump design is to

ensure that the pump is pipe-mounted and free to 'float' with

any movement, expansion and contraction of the piping. Should

any Vertical In-Line pump use supports to the structure it is

imperative that no pipe strain is imposed on the pump flanges.

Telltale pieces of equipment such as springs or 'waffle' style

neoprene isolation pads that distort with pressure to indicate

added piping weight, should be used under pump supports

should the pump not be truly pipe mounted.

Various installation arrangements are detailed on Pages 6 and 7:

2.2.1

Vertical In-Line pumps may be installed directly in the system

piping with no additional support. Pipe hangers are simply sized

for the additional weight of the pumping unit. Many pumps are

installed in this manner and are mounted at sufficient height to

take zero floor space. (Fig. 2.1)

2.2.2

Piping, in many mechanical rooms, is hung close to the ceiling

and larger pumps are mounted near ground level for ease of

maintenance. Fig 2.2 illustrates such an arrangement with the

piping supported at the ceiling and the vil unit installed with

an Armstrong Suction Guide and triple function Flo-Trex valve.

Many very large vil pumps are installed in this manner.

2.2.3

Should additional space saving be required the discharge spool

piece and Flo-Trex valve may be replaced by a long-radius el-

bow and the Flo-Trex valve field converted to a straight-through

valve and installed in the vertical discharge pipe. (Fig. 2.3)

2.2.4

Fig 2.4 illustrates a similar arrangement to Fig 2.2 with

additional floor mounted pipe-stools isolated from the struc-

ture by 'waffle' style neoprene isolation pads under the

Armstrong Suction Guide and Flo-Trex valve.

2.2.5

Floor mounted saddle supports (Fig. 2.5) are typical for

condenser water pumps where the cooling tower base is near

mechanical room elevation.