Types of Boiler Safety Valves -

1. Improved high lift safety valve
For low pressure water tube boilers and fire tube boilers. Hence the improvements to the high lift safety valve are
▪ Removal of valve wings, this improves waste steam flow and reduces risk of seizure
▪ Floating ring or cylinder which reduces risk of seizure.

2. Full Lift Safety Valve

3. Full Bore Safety Valve; for high pressure boiler