A backflow preventer with an intermediate atmospheric vent consists of four independent check valves within the body and an atmospheric vent between the check valves.
The condition of water column piping is determined by removi…
The condition of water column piping is determined by removing boiler cross tee plugs.
The main difference between how cooling systems operate comp…
The main difference between how cooling systems operate compared to hot water heating systems is that cooling systems transport heat away from a building space to produce a cooling effect.
The most common LP gas is propane.
The most common LP gas is propane.
The most common LP gas is propane.
The most common LP gas is propane.
A(n) ___ is a safety device that senses if the pilot light a…
A(n) ___ is a safety device that senses if the pilot light and/or main flame are lit.
A tube bank eliminates the need for a seal-welded inner casi…
A tube bank eliminates the need for a seal-welded inner casing.
In a low pressure gas system, gas pressure is reduced from s…
In a low pressure gas system, gas pressure is reduced from supplier gas pressure to approximately 3 psi.
Cutting a boiler in on-line is the opening of the main steam…
Cutting a boiler in on-line is the opening of the main steam stop valve to the main steam header to allow steam to flow to its point of use.
In a low pressure gas system, gas pressure is reduced from s…
In a low pressure gas system, gas pressure is reduced from supplier gas pressure to approximately 3 psi.