Boiler and safety
A boiler that has a loss of feed water and is permitted to boil dry can be extremely dangerous. If feed water is then sent into the empty boiler, the small cascade of incoming water instantly boils on contact with the superheated metal shell and leads to a violent explosion that cannot be controlled even by safety steam valves. Draining of the boiler can also happen if a leak occurs in the steam supply lines that is larger than the make-up water supply could replace. The Hartford Loop was invented in 1919 by the Hartford Steam Boiler and Insurance Company as a method to help prevent this condition from occurring, and thereby reduce their insurance claims
A boiler explosion is a catastrophic failure of a boiler. As seen today, boiler explosions are of two kinds. One kind is a failure of the pressure parts of the steam and water sides. There can be many different causes, such as failure of the safety valve, corrosion of critical parts of the boiler, or low water level. Corrosion along the edges of lap joints was a common cause of early boiler explosions.
The second kind is a fuel/air explosion in the furnace, which would more properly be termed a firebox explosion. Firebox explosions in solid-fuel-fired boilers are rare, but firebox explosions in gas or oil-fired boilers are still a potential hazard.
Replacement of the seal in the tap
In the kitchen they are made different hydraulic works. Typically, they involve repairing defects such as leaking or clogged siphon water tap. Sometimes the plumber is needed when connecting a dishwasher. It concerns the need to establish a new connection through which water will be supplied to the dishwasher. Leaking the other hand, tap water is usually caused by abraded or defective seal cam. Carrying out repairs tap, which has ceased to work well for these reasons will not be a plumber for any problem. Just as often he has to deal with pushing siphon blocked by collecting crumbs in it fat flowing into it from the dishes to be washed.