US$ 1000.00
Whistle with fittings P/N 5256F
Total length 210 mm
Weight 1000 gms
Pressure Gauge
60 mm high
4131 Safety Valve for 4" Boilers: Whistle with fittings P/N 5256F3 8 x 32 Suitable for 4" boilers. 0 60 PSI Note: these have simple adjustable spring loaded relief balls that progressively release pressure when the setting is passed. They are not "pop"valves that trigger at a set pressure.