The Sinorix™ Silent Nozzles SDNS-x are designed in such a way that they discharge the extinguishing agent at a reduced sound level that is compatible with the operation of memory systems (hard drives). The 'linear design' of the nozzle means the extinguishing agent can flow at a reduced pressure and with a targeted jet shape, allowing it to be supplied to the room to be protected much more evenly and quietly.

The extinguishing nozzles help to prevent noise-related faults with hard drives and entire memory systems in data centers and server rooms while they are being flooded with extinguishing agent.

All SDNS variants are intended for room protection applications; however, they have special characteristics regarding their maximum orifice diameter and jet stream.

Alignment with pipe axis:

Nozzle

Jet stream

Description

SDNS-S

Nozzle hanging, jet stream horizontal

90°/270° to pipe axis

Applications with small (partial) volumes and/or where only the horizontal jet stream is important

Examples:

  • Directly above server cabinets
  • Inside cold aisle containment systems
  • False floors/ceilings

SDNS-M

Nozzle hanging, jet stream radial

90°/135°/180°/225°/270° to pipe axis

Applications with medium (partial) volumes

SDNS-L

Nozzle hanging, jet stream radial

90°/120°/150°/180°/210°/240°/270° to pipe axis

Applications with largest-possible (partial) volumes

Nozzle

Jet stream

Description

SDNS-M-H

Nozzle hanging, jet stream horizontal

90°/100°/110°/250°/260°/270° to pipe axis

Applications with medium (partial) volumes; jet stream particularly suited to use with FK-5-1-12

SDNS-L-H

Nozzle hanging, jet stream horizontal

90°/100°/110°/120°/240°/250°/260°/270° to pipe axis

Applications with largest-possible (partial) volumes; jet stream particularly suited to use with FK-5-1-12

SDNS-M-SC

Nozzle standing upright, jet stream horizontal

60°/70°/80°/90°/100° in relation to hanging pipe axis

Wall mounting