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FIIG:  A087A0

Entry Date:  Apr-01-1974

Concept:  

Status:  A

Applicability:  J

Type:  0

Definition:  The outer casing of a centrifugal fan designed to inclose an impeller. It is usually of one piece construction containing inlet(s) and outlets.

Basic INC:  70125

Basic Name:  HOUSING

Description:  1. (Instrument) An item inclosing the working elements of a meter, gage, indicator, and the like. It provides protection from dust, moisture, and/or mechanical injury, and may also include provisions for electrical, pressure, and/or vacuum supply to the inclosed item. The inclosed item is not normally operable when removed from the housing. The housing does not provide conforming dimensions, but does follow a geometric relationship to the over-all configuration of the item it incloses. See also CASE (2) (as modified) and COVER (1) (as modified). 2. (Mechanical) A part designed to surround or inclose, in addition to supporting and aligning moving part(s) of the operating unit. It may provide mounting facilities for external and/or internal components and may be either single or multiple piece construction. For items not designed to support and align moving parts, see CASE (3) (as modified).