Reg. 304, Reg. 305, Reg.
|Safety valves shall
be capable of being lifted a distance such that the area
of the discharge edge shall not be less than the minimum
aggregate area, A in Reg.
High and Low water Alarms
|High and low water
alarms shall be adjusted so that the alarm is sounded
with the water level visible in the gauges.
|Each safety valve shall, before
leaving the makers works be adjusted to blow-off
at the specified pressure .
Reg. 306 A
Adjustment of safety valve set pressure
|The set pressure of a safety
valve may be adjusted using air or other gas as the test
medium provided that the safety valve has been subjected
previously to hydraulic test in accordance with the requirement
of clause (a) of regulation