# US 2013/0001331 A1 · Full cone spray nozzle for a low pressure fire protection system

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- Number: US 2013/0001331 A1
- Document ID: US20130001331A1
- Status: Published application
- Kind: A1
- Application number: 13/582,176
- Filed: 2011-03-04
- Published: 2013-01-03
- Earliest claimed: 2010-03-04
- Assignees: VID Fire-Kill ApS
- Inventors: Carsten Palle
- Web page: https://patentgrep.com/patent/US20130001331A1

## CPC

- A62C 31/00: Delivery of fire-extinguishing material (pumps F04; {suction or pressure} hoses, {joints or couplings therefor} F16L)
- A62C 99/0072: {using sprayed or atomised water}
- B05B 1/3421: {with channels emerging substantially tangentially in the swirl chamber}
- A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10)
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)

## Abstract

A low pressure water mist nozzle for active fire protection from water supplied with supply water pressures of 0.5 bar to 20 bars, characterized by having a separation wall (3) with multiple openings (4) of sizes 01 mm to 02, 5 mm in angles of 10° to 50° to the wall surfaces, which are followed by a cavity (8) having a centrally located outlet opening (6) in its end wall, which are located opposite the separation wall (3) containing multiple openings (4).

## Claims

### Claim 1

A low pressure water mist nozzle for active fire protection from water supplied with supply water pressures of 0.5 bar to 20 bars, which are characterized by having a separation wall with multiple openings of sizes 01 mm to 02.5 mm in angles of 100 to sao to the wall surfaces, which are followed by a cavity having a centrally located outlet opening in its end wall, which are located opposite the separation wall containing multiple openings.

### Claim 2 (depends on 1)

A low pressure water mist nozzle of claim 1, characterized by the size of the centrally located opening having a diameter of 01.5 mm to 03 mm.

### Claim 3 (depends on 1)

A low pressure water mist nozzle of claim 1, characterized by having a centrally located opening in separation wall.

### Claim 4 (depends on 1)

A low pressure water mist nozzle of claim 1, characterized by the outlet opening having an increasing cross-sectional area.