A ___ is a burner accessory that opens when energized by con… A ___ is a burner accessory that opens when energized by contacts in the programmer to allow fuel oil to flow to a burner nozzle. Read Details
Gate valves offer no restriction to flow when wide open. Gate valves offer no restriction to flow when wide open. Read Details
Gate valves offer no restriction to flow when wide open. Gate valves offer no restriction to flow when wide open. Read Details
Foaming causes corrosion of heat transfer surfaces. Foaming causes corrosion of heat transfer surfaces. Read Details
In low pressure steam boilers, the lowest visible part of th… In low pressure steam boilers, the lowest visible part of the gauge glass must be placed a minimum of 1″ above the lowest permissible water level. Read Details
In low pressure steam boilers, the lowest visible part of th… In low pressure steam boilers, the lowest visible part of the gauge glass must be placed a minimum of 1″ above the lowest permissible water level. Read Details
Flame failures in gas-fired boilers are commonly caused by _… Flame failures in gas-fired boilers are commonly caused by ___. Read Details
A slow gauge indicates less pressure than is actually presen… A slow gauge indicates less pressure than is actually present in the boiler. Read Details
