Spray nozzle assembly

摘要

A spray nozzle assembly including at least one wear part made from a hard and abrasion-resistant material and a protective housing made from a strong and resilient material and having a downstream chamber adapted to receive one or more of the wear parts in releasably trapped relationship, the downstream chamber having a wall including a post defined by a slot in the downstream chamber wall either side of the post, the post including an inwardly extending protuberance at or near its end and adapted to prevent the wear part from escaping from the downstream chamber.

主权项

1. A spray nozzle assembly for spraying abrasive and pressurized flowable material, the spray nozzle assembly including at least one wear part made from a hard and abrasion-resistant material and a housing made from a protective and resilient material and having a housing wall and a downstream chamber adapted to receive one or more of the wear parts in releasably trapped relationship, the downstream chamber having:
a chamber wall forming part of the housing wall and aligned parallel to a longitudinal axis of the downstream chamber and including a post defined by a pair of slots in the downstream chamber wall, the pair of slots comprising one slot either side of the post, the post capable of flexion and including an inwardly extending protuberance at or near its end and adapted to prevent the wear part from escaping from the downstream chamber; and a key to prevent axial rotation of the wear part and to register a flow path of a side opening of the downstream chamber in flow communication with the wear part.