vapor vent

local vent, local ventilating pipe

A pipe on the fixture side of a trap through which vapor or foul air is removed from the room or fixture.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Partial melting of core, cooling failure, vapor vented, building housing containment of reactor damaged by hydrogen explosion, roof blown off, seawater being pumped in.
Partial melting of core feared, cooling failure, vapor vented, seawater being pumped in, building housing containment of reactor badly damaged by hydrogen explosion, seawater dumped over spent-fuel storage pool by helicopter Thursday, water sprayed at it from ground for five days in a row through Monday, workers forced to evacuate on Monday due to grayish smoke seen billowing from roof.
Partial melting of core feared, cooling failure, vapor vented, seawater being pumped in, building housing containment of reactor badly damaged by hydrogen explosion, seawater dumped over spent-fuel storage pool by helicopter Thursday, water sprayed at it from the ground for six days through Tuesday, workers temporarily forced to evacuate due to grayish smoke seen billowing from roof on Monday, lighting back on in control room on Tuesday.
3 - Cooling failure, partial melting of core feared, vapor vented, seawater pumped in, hydrogen explosion, high-level radiation measured nearby.
2 - Cooling failure, seawater being pumped in, fuel rods fully exposed temporarily, vapor vented, building damaged Monday by blast at Reactor No.
3 - Cooling failure, partial melting of core feared, vapor vented, seawater being pumped in, building damaged Monday by hydrogen explosion, high-level radiation measured nearby on Tuesday, plume of smoke observed Wednesday, damage to containment vessel likely.
1 - Suspended after quake, cooling failure, partial melting of core, vapor vented, building damaged Saturday by hydrogen explosion, seawater being pumped in.
3 - Suspended after quake, cooling failure, partial melting of core feared, vapor vented, seawater being pumped in, building housing reactor damaged Monday by hydrogen explosion, high-level radiation measured nearby on Tuesday, plume of smoke observed Wednesday, damage to containment vessel likely.
1 - Operation suspended after quake, cooling failure, partial melting of core, vapor vented, building housing reactor damaged Saturday by hydrogen explosion, roof blown off, seawater being pumped in.
2 - Operation suspended after quake, cooling failure, seawater being pumped in, fuel rods fully exposed temporarily, vapor vented, building housing reactor damaged Monday by blast at reactor No.
1 - Operation suspended after quake, cooling failure, partial melting of core, vapor vented, building housing reactor damaged March 12 by hydrogen explosion, roof blown off, seawater being pumped in.
3 - Operation suspended after quake, cooling failure, partial melting of core feared, vapor vented, seawater being pumped in, building housing reactor badly damaged Monday by hydrogen explosion, high-level radiation measured nearby on Tuesday, plume of smoke observed Wednesday and presumed to have come from spent-fuel storage pool, seawater dumped over pool by helicopter on Thursday, water sprayed at it from ground on Thursday and Friday.