IS 428 covers brass/bronze valves (gate, globe, check) for plumbing and water supply in buildings. Sizes typically 15mm to 50mm. These are the standard isolation and control valves in residential and commercial plumbing systems.
Specification for copper alloy (brass/bronze) gate, globe, and check valves for water supply and plumbing systems.
Key Values
Size range15mm to 50mm
PressurePN16, PN25
Body test1.5 × PN
Practical Notes
! Globe valves for throttling/flow control. Gate valves for full on/off isolation only.
! Check valves prevent backflow — mandatory after pumps and in multi-storey risers.
! Brass valves are for smaller sizes (up to 50mm). For larger sizes, use DI/CI gate valves per IS 2046.