Patent ID: 11883698
Assignee: WAGNER GROUP GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC A  G  B  F | IPC A  B  F

Claim 4:
5. A kit for cleaning or maintaining a filtering air guide for an intake pipe system for gaseous media in an aspirating fire-detection or air-monitoring system (30), the air guide including a housing (7) having an interior and the kit comprising:
(a) a maintenance/cleaning device (22) comprising a partial vacuum source or overpressure source,
(b) a main housing (13) forming a component part of the housing (7) and having an opening (8), a gas inlet (12a) and a gas outlet (12b) and configured to receive a filter (5) interposed in a gas flow path between the gas inlet (12a) and the gas outlet (12b); and
(c) a first component (10) forming a replaceable housing cover (14) that is an adapter part detachably connectable to the main housing (13) and closing the opening of the main housing (13) when the first component is detachably connected to the main housing, the first component (10) having
(i) a fitting (6) with an opening into the housing interior through a wall region (11) of the housing cover (14), the fitting being connectable to the maintenance/cleaning device (22), and
(ii) at least one shutoff element (16) positioned to register with the gas inlet (12a) or the gas outlet (12b) and reduce the effective cross section of the gas flow path when the first component is detachably connected to the main housing.