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IS 5600:2002

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Indian Standard ,
PUMPS SEWAGIK~~D DkAINAGE
SPJ3CIFI@iTION

(,First Revision )

ICS 23.080

0 BIS 2002

BUREAU OF INDIAN STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

September 2002 Price Group 2

r I
Pumps Sectional Committee, ME 20

FOREWORD

This Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by
the Pumps Sectional Committee had been approved 6y the Mechanical Engineering Division Council.

Sewage and drainage pumps are used where sewage and other drainage from buildings is below sewer level and
is to be taken into a sump and pumped or ejected from there into the sewer. These pumps are also used in cases
where drainage cannot be taken care of by gravity flow.

The technical requirements for centrifugal and rotodynamic pumps covering wide range including definitions,
units, classes and types of pumps, effect of viscosity, specific gravity and other effects on the performance of
pumps, material of construction, salient design features, testing procedures, tolerances and guarantees are already
included in IS 5120: 1977 Technical requirements for rotodynamic special purpose pumps first revision)

This standard was first published in 1970. In this revision essential design features have been modified to bring it
in line with the prevailing practice in the field.

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,
observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2:1960
Rules for rounding off numerical values (revised) .. The number of significant places retained in the rounded off
value should be the same as that of the specified value in this standard.
 lS 5600 :2002

Indian Standard

PUMPS SEWAGE AND DRAINAGE

SPECIFICATION
( First Revision)

1 SCOPE
4 CHARACTERISTICS OF SEWAGE
This standard specifies the technical re@rementa for
rotodynamic pumps (such as centrifiigal, axial flow, Some typical characteristics of sewage are given below:
etc) for handling sewage and drainage. a) Total solids 1 000to2200 ppm
.~. ,.
2 REFERENCES b) Suspended solids 150 to 500 ppm
The Indian Standards listed below qtain provisions c) Four hours oxygen
which, through reference in this text, constitute consumption 50 to 120 ppm
provision of this standard. At the time of publication,
the editions indicated were wdid. All standards are d) BOD (5 days 20C) 150 to 450 ppm
subject to revision, and parties to agreements based on e) Alkalinity 350 to 700 ppm
this standard are enouraged to investigate the possibility
of applying the most recent editions of the standards Q Chloride 120 to 300 ppm
indicated below: Free nitrogen 15 to 45 ppm
g)
1S No. Title
h) Albuminoid nitrogen 4 to 40 ppm
210: 1993 Grey iron castings pH value 6.8 to 7.9
j)
Specification (Jourth
revision) k) Specific gravity 1.05 .----

318: 1981 Specification for leaded tin 5 NOMENCLATURE

bronze ingots and castings
Nomenclature of the parts commonly used in sewage .

(second revision)
and drainage pumps shall be as given in IS 5120.
1875: 1992 Carbon steel billets,
6 MATERIAL OF CONSTRUCTION
blooms, slabs and bars for
forgings (jijlh revision) It is recognized that a number of materials of
construction are available to meet the needs for pumps
5120: 1977 Technical requirements for
for sewage and drainage. A few typical materials are
rotodynamic special
indicated below merely for the guidance of the
purpose pumps (first
manufacturer and the user:
revision)
Component Material of Construction
6603:2001 Stainless steel bars and
flats Specification (@t Casing Casting grade FG 200 of IS 210
revision)
Impeller Casting grade FG 200ofIS210 or
6911 : 1992 Stainless steel plate, sheet Bronze grade LTB2 of IS 318 or
and strip @-st revision) Stainless steel as per IS 6603 or IS
6911
3 UNITS, TERMINOLOGY AND CLASSIFICATION
Casing ring and do
Units, terminology and classification relating to pumps
impeller ring
for handling sewage and drainage shall be as specified
(if provided)
in IS 5120.

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[S 5600 :2002

Shaft sleeve Bronze grade LTB2 of IS 318 or 9 SUCTION LIMITATIONS

(if provided) Stainless steel grades X04 Cr12,
X12 Cr12 or X20Cr 13 of IS 6603 Suction limitations affecting the performance of the
or IS 6911 sewage and drainage pumps are the same as specified in
IS 5120.
Shaft Class 3A of IS 1875
NOTE It is always desirable for sewage pumps to operate
Bush Bronze grade LTB2, 3 or 4 of IS with positive head on suction or with flooded suction. If the
pumps operate with a suction lift, there is a possibility of the
318 or Nitrile/cutless rubber
gases contained in the sewage being given off resulting in vapour
NOTES: lock and ultimate failure of the pumps.

1 The materials listed are to be considered as only typical 10 FACTORS AFFECTING PUMP
and indicative of minimum requirement of the material PERFORMANCE
properties. The use of materials having better properties is not
prejudiced by the details provided above. Factors affecting the pump performance are the same
2 If the range ofpH is between 6.5 and 8.5 and the chloride as those specified in IS 5120.
content exceeds 100 ppm, only bronze fitted impeller or stainless
steel impeller shall be used. 11 ESSENTIAL DESIGN FEATURES

3 If any other characteristics of sewage to be handled differ The pumps shall have following design features to ensure
frolm those specified as above, the material of construction for satisfactory performance.
the pump shall be as agreed to between the manufacturer/supplier
and the user and shall be specified in the order. a) The allowable solid size should not exceed 80
percent of the outlet width of the impeller.
7 DIRECTION OF ROTATION
b) Casing and impeller should be so designed as
7.1 For rotodynamic pumps, the direction of rotation is
to allow free passage of the specified maxi-
designated as clockwise or anti-clockwise as observed
mum size of solids.
when looking at the pump shaft from the driving end.
c) An inspection hole with suitable cover of the
7.2 The direction of rotation shall be clearly marked
same material as that of casing should be pro-
either by incorporating an arrow in the casting or by a
vided on the casing either on suction side or
separate metal plate arrow securely fitted to the pump.
near to casing throat so as to permit the inspec-
tion of the impeller whenever necessa~. :...----
8 ACCESSORIES ~

The following shall constitute common accessories: d) The pump should be preferably of end suction
type with vertical and/or horizontal delivery >
a) Vacuum pump if there is no positive suction, nozzle orientation.
b) Flanged sluice valve on suction side if there is e) On account of the abrasive nature of sewage,
positive suction, provision should be made on the stuffing boxes
to ensure clear water supply or grease lubrica-
c) Flanged sluice valve on delivery side,
tion to the glands shall be provided from exter-
d) Flanged reflux valve, nal sources according to the requirements of
use. Alternatively, there should also be provi-
e) .Pressure relief valve,
sion of replacing gland packing without major
H Coupling, overhaul of the pump. t..

g) Pressure and vacuum gauge with siphon and 12 INFORMATION TO BE SUPPLIED BY THE
cock, PURCHASER AND THE SUPPLIER

h) Base plate, The information to be supplied by the purchaser and the

supplier shall be as specified in IS 5120.
j) Foundation bolts and nuts,
13 PUMP TESTS
k) Ball type air relief valve, and
Pump tests shall be the same as those specified in IS
m) Automatic level operated control switch. 5120.
NOTE - Item (b), (c), (d) and (m) are optional.
 1%

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lS 5600 :2002

14 DETERMINATION OF PUMP PERFOR- 900 I/rein, a tolerance of +2.5 percent or +24 llmin
MANCE whichever is higher, is allowed while the negative tol-
erance of 2.5 percent is maintained.
The determination of the performance of the sewage
and drainage pumps shall be in accordance with the 16.3 The percentage pump efficiency shall be not less
method specified in 14 of IS 5120. than the specified value by more than 2.5.

15 GUARANTEES 17 GENERAL REQUIREMENTS

15.1 Guarantee of Workmanship and Material The general requirements covering the pumps for
process water shall be as given inIS5120.
The pump shall be guaranteed by the manufacturer
against defects in material and workmanship, under 18 MAINTENANCE
normal use and service, for a period of at bat one year.
18.1 A maintenance schedule shall be provided ~y the
15.2 Guarantee of Performance manufacturer/supplier with each pump to the user for
the guidance. The maintenance schedule may also
The supplier shall indicate the working range of the pump
include trouble shooting of problems generally
and the efficiency of the pump shall be guaranteed to encountered in operation and maintenance of the pumps.
cover the performance of the pump under conditions
varying therefrom or for a sustained performance for 18.2 A set of maintenance tools required for day-to-day
any period of time. If the purchaser so desires, the maintenance of sewage pumps shall be provided.
manufacturer shall guarantee the non-overload of the
19 MARKING
prime mover for variations in the head in the working
range. In the case of pumps where acceptance cannot 19.1 Pump shall be marked with the following:
be conducted on the liquid for which the pump is de-
signed, the manufacturer shall indicate the liquid per- a) Manufacturers name or recognized trade-mark;
formance of the pump based on the results of the tests b) Type, size and serial No. of pump;
conducted by him on the pump with water and interpo-
lated as giveninIS5120. However, in these cases, the c) Speed;
manufacturer shall guarantee for the performance of the
d) Head, volume rate of flow and efficiency at the
pumps with water for the specified range.
specific duty point;
15.3 Unless specified otherwise, pump performance
figures shall be deemed to be applicable for 4.5 m e) Head range for overloading requirements;
suction lift at mean sea level and at a water temperature f) Recommended prime-mover rating; and
of 30C.
g) Arrow to indicate direction of rotation.
15.4 Suction lift is to be reduced for higher altitudes at
the rate of 1.5 m for every 1 000 m above mean sea 19.2 BIS Standard Mark
level.
19.2.1 The pump may also be marked with the Stan-
16 TOLERANCES dard Mark.

16.1 In all commercial acceptance tests of pumps, a 19.2.2 The use of Standard Mark is governed by the
certain tolerance shall be allowed to the manufacturer provisions of the Bureau ofIndian Standards Act, 1986
on his guarantee to cover inaccuracies of the equations and the Rules and Regulations made thereunder. The
for discharge, errors of observation and unavoidable details of conditions under which a license for the use
minor inaccuracies of the instruments employed. of the Standard Mark may be granted to manufacturers
or producers maybe obtained from the Bureau of Indian :,
16.2 A tolerance of +2.5 percent shall be permissible Standards.
on the discharge. However, for small discharges up to
Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote
harmonious development of the activities of standardizdtio~ marking and quaiity certification of goods and
attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications maybe reprodued in any form
without the prior permission in writing from BIS. This does not preclude the fkee use, in the course of
implementing the standard, of necessary details, such as symbolsand sizes, type or grade designations.
Enquiries relating to copyright may be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also
reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no
changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of
Indian Standards should ascertain that they are in possession of the latest amendments or edition by
referring to the latest issue of BIS Catalogue and Standards: Monthly Additions.

This Indian Standard has been developed from Doc : No. MED 20 (0523).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDS

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{

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