Importance

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Abstract

A fire protection nozzle has a base, an orifice, defined by the base and having a predetermined diameter, through which fire-retardant fluid can flow, a inlet section having an upstream end and defining a conduit for flow of the fire-retardant fluid along a conduit axis and leading to an upstream end of the orifice, a diffuser element positioned coaxially with and downstream of the orifice, and one or more arms extending from the base and supporting the diffuser element in a position, where, when flow of the fire-retardant fluid from the inlet section through the orifice is established, the fire-retardant fluid emerges from the orifice in a stream which impinges on a diffuser surface defined by the diffuser element to be distributed in a spray pattern. The diffuser surface defined by the diffuser element is generally spherical in shape in a region extending from an upstream end closest to the orifice to at least downstream of an equatorial plane of the diffuser element transverse to the conduit axis.

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First Claim