Water-tube boiler - Wikipedia. 2019-10-2 · A high pressure watertube boiler (also spelled water-tube and water tube) is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating tubes.
Vertical fire-tube boiler - ipfs.io. A vertical fire-tube boiler or vertical multitubular boiler is a vertical boiler where the heating surface is composed of multiple small fire-tubes, arranged vertically.  These boilers were not common, owing to drawbacks with excessive wear in service.
Explosion Proof Boiler - wilfordboiler.com. Explosion Proof Boiler Explosion Proof Electric Heating steam generator Explosion-proof boilers is equivalent to the double safety of the original boiler safety, and strengthens the safety function, thus providing users with a safe and stable experience. Get A Quote