Sinorix™ SDNX-R, SDNX-W IG-01, IG-55, IG-100, IG-541 Silent nozzle ● ● ● ● Distribution of the extinguishant Room protection For use in server rooms and data center applications Reduced noise during discharge of the extinguishant Product codes: SDNX-R – S54476-B280-C3 SDNX-W – S54476-B280-C6 A6V12282559_en--_b 2022-02-09 Smart Infrastructure Building Products
Application These products are used in Sinorix™ CDT and unregulated fixed automatic inert gas extinguishing systems. Functions The Sinorix™ Silent Nozzles SDNX-R and SDNX-W are designed to discharge the extinguishant at a reduced noise level compatible with the operation of storage systems (hard disks). The nozzles help to prevent noise-related disruptions to hard disk drives and entire data storage systems in data centers and server rooms during an extinguishing agent discharge.
Drilling The orifice of a SDNX nozzle is drilled on request according to the calculation made using the VdS hydraulic calculation software. SDNX-R SDNX-W Product code S54476-B280-C3 S54476-B280-C6 Orifice diameter 3.0 – 20.0 mm 3.0 – 14.8 mm * Fill in the SAP field “Manufacturing instruction” to specify the desired orifice diameter in the T-piece. The orifice diameter should be ordered as a multiple of 0.1 mm (e.g. Ø 12.4 mm).
Engineering Nozzle coefficients: ● SDNX nozzles are designed to be used with Sinorix™ systems (NXN, CDT-R or CDT-V). They can also be used to upgrade existing unregulated Sinorix™ inert systems (IG-01, IG-100, IG-541, IG-55) as long as the nominal pressure in the discharge piping network never exceeds 100 bar. ● The nozzle coverage of a SDNX nozzle is the same as for a standard nozzle with similar orifice diameter, and can be limited by local regulations.
● ● Check that the nozzle orifice and the location of the nozzle in the discharge piping network are appropriate for the room to be protected. If the diffuser must be cleaned, follow the steps hereafter. Removing the diffuser 1. Take note of the orifice diameter, location and orientation of the nozzle. 2. Partly loosen both screws [6] using an 8 mm hexagon wrench. 3. Remove the diffuser [2]. Putting the diffuser back in place 1.
Technical data Technical data Nominal diameter DN25 Maximum operating pressure 100 bar Thread G 1" Extinguishant IG-01, IG-55, IG-100, IG-541 Material Brass (CW614N/CW617N), stainless steel Operating temperature -20 °C to +50 °C Transport and storage temperature -40 °C to +65 °C Weight 2.50 kg Marking SDNX-x S54476-C280-Cx ∅ X.
Dimensions Dimensions in mm 7 Smart Infrastructure Building Products A6V12282559_en--_b 2022-02-09
Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug +41 58 724 2424 www.siemens.com/buildingtechnologies Document ID A6V12282559_en--_b Edition 2022-02-09 © Siemens Switzerland Ltd, 2022 Technical specifications and availability subject to change without notice.
