IS 8418 : 2025 Pumps - Centrifugal Self Priming - Specification
Revised Standard from Last Update.
1 SCOPE
1.1 This standard specifies the technical requirements for horizontal/vertical, single/multistage centrifugal self-priming pumps for handling clear cold water.
1.2 Types
The various types of self-priming centrifugal pumps are as follows:
a) Re-circulation in suction (see Fig. 2);
b) Re-circulation in delivery (see Fig. 3);
c) Auxiliary self-priming pump with main pump (see Fig. 4); and
d) Self-priming pump with built-in ejector (see Fig. 5).
1.3 Details of types of self-priming pumps and their working principle are given in Annex B and Fig. 2 to Fig. 5.
2 REFERENCES
The standards listed in Annex A contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revisions, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of these standard:
| IS No. | Title |
| IS 210 : 2009 | Grey iron castings - Specification (fifth revision) |
| IS 318 : 1981 | Specification for leaded tin bronze ingots and castings (second revision) |
| IS 694 : 2010 | Polyvinyl chloride insulated unsheathed and sheathed cables/cords with rigid and flexible conductor for rated voltages up to and including 450/750 v (fourth revision) |
| IS 1570 (Part 2/Sec 1) : 1979 | Schedule for wrought steels: Part 2 Carbon steels (unalloyed steel), Section 1 Wrought products (other than wire) with specified chemical composition and related properties (first revision) |
| IS 5120 : 1977 | Technical requirements for rotodynamic special purpose pumps (first revision) |
| IS 6603 : 2024 | Stainless steel semi-finished products, bars, wire rods and bright bars - Specification (second revision) |
| IS 7347 : 1974 | Specification for performance of small size spark ignition engines for agricultural water pumps, sprayers, tillers, reapers and other similar applications |
| IS 7538 : 1996 | Three phase Squirrel cage induction motors for centrifugal pumps for agricultural application - Specification |
| IS 9079 : 2018 | Monoset pumps for clear, cold water for agricultural and water supply purposes - Specification (third revision) |
| IS 10001 : 1981 | Performance requirements for constant speed compression ignition (diesel) engines for general purposes (up to 20 kW) |
| IS 10572 : 1983 | Methods of sampling pumps |
| IS 11170 : 1985 | Specification for 1 performance requirements for constant speed compression ignition (Diesel) engines for agricultural purposes (up To 20 kW) |
| IS 11346 : 2002 | Tests for agricultural and water supply pumps - Code of acceptance (first revision) |
| IS 14582 : 2021 | Single-phase small ac electric motors for centrifugal pumps for agricultural applications |
| IS/ISO 21940-11 : 2016 | Mechanical vibration - Rotor balancing: Part 11 Procedures and tolerances for rotors with rigid behaviour |