This standard specifies the requirements for materials, dimensions, construction, and testing of ball valves used in water supply systems. It defines nominal pressure ratings and hydrostatic test criteria to ensure valve integrity and leak-tightness.
Specifies requirements for full bore and reduced bore ball valves for water supply applications.
Quick Reference Values
hydrostatic shell test pressure1.5 x Nominal Pressure (PN)
hydrostatic seat test pressure1.1 x Nominal Pressure (PN)
typical nominal pressuresPN 1.0, PN 1.6, PN 2.5 MPa
Practical Notes
Ensure thread specifications match IS 554 for proper sealing with connecting pipework.
Verify the seat material (commonly PTFE) is suitable for the operating temperature and water characteristics.
Ensure valves undergo both shell and seat hydrostatic tests before field installation to avoid concealed leaks.