boiler draft

boiler draft

[′bȯil·ər ‚draft]
(mechanical engineering)
The difference between atmospheric pressure and some lower pressure existing in the furnace or gas passages of a steam-generating unit.
References in periodicals archive ?
Contract award: Repair of cracks bearing structures of the rear boiler draft K2, K3 and K5.
To keep the concentration of hydrogen sulfide in the atmosphere of the pipeline at low levels predicted aeration of the two branches of the CSD works with air intake in existing wells F98, F95, F79 and F50, air removal projects in F36 for the 1st and 2nd F36A for the pipeline industry, boiler draft air bellows suction at the inlet and E.