IS 2373

: 1981

Water Meters (Bulk Type)

CurrentSpecializedSpecificationBIMMEP · Sanitary Appliances and Water Fittings
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This standard specifies the requirements for materials, dimensions, construction, performance, and testing of bulk-type water meters (impeller type) used for measuring the bulk flow of cold potable water.

Water Meters (Bulk Type)

Quick Reference Values
Nominal sizes covered50 mm to 300 mm
Hydrostatic test pressure1.6 MPa (16 kgf/cm²)
Maximum cold water temperature45°C
Maximum test duration for hydrostatic test1 minute
Practical Notes
Always install a strainer (dirt box) upstream of the bulk water meter to protect the impeller mechanism from debris.
Maintain a straight pipe length of at least 10 times the diameter (10D) upstream and 5D downstream to ensure a uniform flow profile and accurate measurement.
Ensure flanged connections are properly aligned and gaskets do not protrude into the pipe, as this can cause turbulence and affect meter accuracy.