Thread specification model of fire sprinkler

Jul 07, 2023

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1. Specifications of stainless steel spiral nozzle

1, 1/4 - SPJT - 303SS - 120 07

2, 1/4 - SPJT - 304SS - 120 07

3, 1/4 - SPJT - 316SS - 120 07

4, 1/4 - SPJT - 316LSS - 120 07

First: 1/4, indicating the interface size of the stainless steel spiral nozzle.

Second: SPJT is the English abbreviation for Spiral Nozzle.

Third: 303SS is the material code. 303SS represents the stainless steel material with the grade of 303. Other stainless steel spiral nozzles made of 316 stainless steel, 304 stainless steel, and 316L stainless steel can also be selected.

Fourth: 120 means that the spray angle of the stainless steel spiral nozzle is generally 120 degrees. Of course, customers can also customize it according to their needs.

Fifth: 07 is the flow rate representative, which represents the approximate range of the flow rate of the stainless steel spiral nozzle specification under the pressure of 7 bar.

 

2. Analysis of the characteristics of stainless steel spiral nozzle specifications

1. The spray pattern of the stainless steel spiral nozzle has two types: solid cone and hollow cone. The internal thread spiral nozzle has high efficiency, large spray angle, and anti-clogging.

2. The streamlined design from the inlet to the outlet of the cavity of the stainless steel spiral nozzle minimizes the drag coefficient, so it can be applied to various positions.

3. The stainless steel spiral nozzle has a compact design and structure, and has a smooth and non-clogging core-free straight-through flow channel design, which can make the liquid reach the maximum flow rate on the pipe of a given size.

4. After the liquid (or slurry) tangents and collides with the continuously smaller helical surface, it turns into tiny droplets and sprays out to form a mist.

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