FIELD: machine building.
SUBSTANCE: invention relates to dry sprinklers. Dry sprinkler consists of external unit, inlet and inner channel. External unit consists of inlet connection, which includes a head part and a main part.
EFFECT: head part has outer thread, and main part comprises an outer groove, so that external thread and groove enable alternate connection of sprinkler with a supply pipeline by means of threaded or ring joint.
23 cl, 4 dwg
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