This standard prescribes the material, dimensional, manufacturing, and performance requirements for self-closing taps (push taps) used in water supply systems. These fixtures are primarily installed in public places to conserve water by automatically shutting off the flow after a preset duration.
self-closing taps for water supply purposes
Quick Reference Values
standard nominal size15 mm
hydraulic test pressure1.5 MPa
test duration2 minutes minimum
discharge delivery volumeUsually restricted by time/flow limits to prevent wastage
Practical Notes
Self-closing taps require regular maintenance and descaling of the internal cartridge or spring to prevent sticking in the open position.
Install inline strainers (Y-strainers) upstream to prevent pipeline debris from clogging or damaging the self-closing mechanism.