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APPLICATION
These vertical multistage high pressure pumps
are suitable for water supply, irrigation, sprinkler
installations, wash down applications, fire fighting,
transfer cooling water, hot circulation and as boiler feed
pumps.
CONSTRUCTION
This is a vertical pump with single or
multistage construction. The intermediate casings
are clamped together by external tie bolt and sealed with
'O' ring.
BEARINGS
Deep groove ball bearing is used at one end and
bronze bush bearing is used at other end as well as in the
intermediate casings, depending upon the number of stages.
SEALING ARRANGEMENT
Conventional soft graphited packed stuffing
boxes are incorporated. The shaft is fitted with
renewable shaft sleeve in the region of the stuffing box,
which protects the shaft from wear due to packing.
For higher temperatures exceeding 80ºc up to 120ºc,
special water-jacketed stuffing boxes are fitted, which
maintain the temperature in the stuffing box region within
acceptable limit. For special applications special
design of stuffing boxes or mechanical seals can be fitted
as required.
SUCTION AND DELIVERY
NOZZLES
The standard pump will have suction nozzle
horizontal located near the base. The discharge
nozzle is also horizontal located near the drive end.
The position for the discharge nozzle can be supplied in
line, opposite or at 90º in either direction with the
suction nozzle. Both the nozzles are flanged
available in either oval or round shape.
DRIVE
The prime mover should be directly connected to
the pump through a flexible coupling. The motor
required is normally a flanged mounted motor to be fitted
on the bracket supplied along with the pump.
MATERIAL OF CONSTRUCTION
The standard design incorporates material
listed below.
DESCRIPTION
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Suction casing / discharge casing |
C.I. grade 25 |
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Stage piece with diffusors |
C.I. grade25 |
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Impellers |
C.I. grade25 |
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Shaft |
S.S.410 |
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Shaft protection sleeve |
bronze |
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Spacer |
bronze |
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Clamping stud |
EN8 |
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