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GSW57

GSW57
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GSW57

Product catalog summary
Specifications:
The document outlines specifications for gas flow monitors (Typ K / M) with a closing factor between 1.3 and 1.45. It includes various dimensions and flow rates for different nominal diameters (DN) ranging from 15 to 50. The gas flow rates (VGas) and air flow rates (VLuft) are specified for each DN.

Materials:
The construction materials include a steel housing (galvanized), flow body made of aluminum alloy/plastic, aluminum alloy guide pin, stainless steel pressure spring (1.4310), and NBR O-ring.

Standards and Approvals:
The gas flow monitors are approved according to DVGW-VP 305-1 (as of December 2007) and DVGW-G (DG - 4360 BP0172). They are suitable for all gases according to EN437 and DVGW-AB G 260/1 (Methane, Propane, Butane).

Design Features:
The pressure loss is less than 0.5 mbar. The operating temperature range is from -20°C to +60°C, and the housing can withstand thermal loads up to 925°C. The flow through the overflow opening is less than 30 l/h at 100 mbar.

Installation and Usage:
Proper sizing of the gas flow monitors and other components of the gas installation should be done according to DVGW TRGI-2008 rules. The document also provides details on the execution of AG/IG and dimensions according to ISO 7/1.
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Catalog excerpts

GSW57-1

Einbaulage waagerecht Schließfaktor zwischen 1,3 und 1,45 (Typ K / M) senkrecht nach oben Schließfaktor zwischen 1,3 und 1,45 (Typ K / M) DN 15 20 20 20 25 25 25 32 40 50 VGas 2,5 1,6 2,5 4,0 2,5 4,0 6,0 10,0 16,0 16,0 VLuft 2,0 1,3 2,0 3,2 2,0 3,2 4,8 8,0 8,0 12,8 d1 R 1/2 R 3/4 R 3/4 R 3/4 R 1 R 1 R 1 R 11/4 R 11/2 R 2 d2 Rp 1/2 Rp 3/4 Rp 3/4 Rp 3/4 Rp 1 Rp 1 Rp 1 Rp 11/4 Rp 11/2 Rp 2 L 52 52 52 52 54 54 54 67 76 80 SW 27 6K 32 6K 32 6K 32 6K 41 6K 41 6K 41 6K 50 6K 60 6K 70 6K Bestellbezeichnung GSW5715025AI GSW5720016AI GSW5720025AI GSW5720040AI GSW5725025AI GSW5725040AI GSW5725060AI GSW5732100AI GSW5740160AI GSW5750160AI Farbkennzeichnung gelb weiß gelb braun gelb braun grün rot orange orange Ausführung AG/IG Baureihe GSW 57 Gas-Strömungswächter Stand: Dezember 2009 - Technische Änderungen vorbehalten · subject to change (without notice) - 2.5.3 R½ - R2 Gas- Zulassung: nach DVGW-VP 305-1(Stand Dezember 2007) DVGW-G (DG - 4360 BP0172) Werkstoffe • Gehäuse Stahl, verzinkt • Strömungskörper Al-Legierung / Kunststoff • Führungsstift Al-Legierung • Druckfeder Edelstahl 1.4310 • O-Ring NBR Konstruktionsmerkmale Druckverlust (..P): < 0,5 mbar Verwendung: Geeignet für alle Gase nach EN437 und DVGW-AB G 260/1 (Metan, Propan, Butan) Temperaturbereich: Betriebstemperatur -20°C bis +60°C Gehäuse bis 925°C thermisch belastbar VL Durchfluß der Überströmöffnung: <30l/h bei 100 mbar Auslegungshinweise: Die richtige Bemessung der Gasströmungswächter und der anderen Bauteile der Gasinstallation hat nach den Regeln der DVGW TRGI-2008 zu erfolgen. Ausführung AG/IG L d2 (ISO7/1) d1 (ISO7/1)

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