Comct pressure switch for multiple actuators GW A GW A/.0 Printed in Germany Edition 0.0 Nr. 90 Technical description The GW A pressure switch is a comct pressure switch as r EN 8 for DUNGS multiple actuators. The pressure switches are suitable for switching a circuit on, off or over on changes in actual pressure relative to the set switching point (reference value). The switching point can be set easily and quickly using a setting wheel provided with a scale without using a pressure gauge. Application Pressure switches for DUNGS multiple actuators GasMultiBloc and DMV double soleid valve which can be either mounted directly on housing or by using an adapter. Suitable for gases of families,, and other neutral gaseous media. Approvals EC ty test approval as r EC Gas Appliance Directive: GW A CE-008 AO 0 EC ty test approval as r EC Pressure Equipment Directive: GW A CE00 Pressure switch class "S" as r EN 8. Approvals in other important gasconsuming countries..
Functional description Single-acting pressure switch in overpressure range. The pressure switches orate without any power supply. Switching response GW A Short response time during pressure fluctuations. Scifications GW A/ Slow response time during short-term pressure fluctuations by additional damping zzle. Pressure Switch The GW A is a single-acting pressure switch acting in pressure range. The control unit responds to pressure. If the set reference value is exceeded or undershot, the circuit is switched on, off or over. Switching function As pressure rises: NC ons, NO closes As pressure falls: NC closes, NO ons COM p NO NC Max. orating pressure GW A - GW 0 A GW 00 A 00 mbar (0 kpa) 00 mbar (0 kpa) Pressure connection Measuring connection Temrature range O ring flange connection on underside of pressure switch ø 9, length 0 mm, with screw plug Ambient temrature - C to +0 C Medium temrature - C to +0 C Storage temrature -0 C to +80 C Materials Housing: Switch: Diaphragms: Switching contact: Aluminium die casting Polyamide NBR Ag Switching voltage Nominal current AC eff. min. V max. 0 V DC min. V max. 8 V GW 0 00 A AC eff. max. 0 A GW A AC eff. max. A Switching current Electrical connection Degree of protection Setting tolerance AC eff. max. A at cos ϕ AC eff. max. A at cos ϕ AC eff. max. A at cos ϕ 0, AC eff. max. A at cos ϕ 0, AC eff. min. 0 ma AC eff. min. 0 ma DC min. 0 ma DC min. 0 ma DC max. A DC max. A Plug connection for line sockets as r DIN EN 0-80, -pin, protection insulated without ground connection IP as r IEC 9 (EN 09) ±% switching point deviation referred to reference value, adjusted at pressure rises, vertical diaphragm position Installation position Standard installation position; if different observe the change in switching point: GW 0 A max. ± 0, mbar GW 0 A max. ± mbar GW 00 A max. ± mbar In the horizontal installation position the switching pressure is increased. When the pressure switch is mounted horizontally overhead, its switching pressure decreases. When the pressure switch is mounted in an intermediate position, its switching pressure deviates.
Designation V Pressure connection G / Position MS Test nipple at position G Equipment connector, pol protection-insulated, w/o grounding Order example Pressure switch design Pressure Switch GW A Setting range - 0 mbar Contact material Ag Electrical connection Equipment connector Pressure connection At position Test nipple MS Ag 0, - 0-0 0-0 0-0 00 00-00 GW A Pressure switch switches when the setpoint is exceeded or undershot. GW A/ Pressure switch with damping zzle switches on if the set reference value is exceeded or undershot. GW 0 A [Ag-G-MS-V] Dimensions [mm] Test nipple ø 9 8, Slot for O ring 0, x,, ± 0, Pressure connection optionally with damping zzle for GW...A/, Fastening holes,,, ø,,, 8, Made in Germany IP Plug connection for line socket as r Seal DIN EN 0-80 Safety cover for plug-ty connection
Mounting options GW A GasMultiBloc MB-...0/0 GW A p e p a, with # 0 p e p a, with # 0, seal plug G /8 Instrument gland, optional Instrument gland Mounting options GW A GasMultiBloc MB-D..0 - ; MB-ZR.. 0 - GW A alternative to p e p e, with # 9, with # 0,,, seal plug G /8 (standard), Instrument gland, optional G /8 M inner hex Mounting options GW A Safety soleid valve SV- 0-0 GW A mounting possible SV 0/0 SV 0/ SV 0 () with 0 horizontal ) ) For pressure switch assembly, y attention to the flange attachment.
Mounting options GW A Double soleid valve DMV 0/ GW A V V, with # 9 (horizontal), with # 0 (vertical),, G /8 seal plug as r DIN ISO 8 Seal Plug as r M The seal plugs,, can also be replaced by a G /8 instrument gland as r DIN ISO 8 Mounting options GW A Double soleid valve DMV 0-0/ GasMultiBloc MB-... - 0 MBC-00/00/00 GW A V V, with # 9 (horizontal), with # 0 (vertical) V V,,, G /8 seal plug as r DIN ISO 8 The seal plugs,,, can also be replaced by a G /8 instrument gland as r DIN ISO 8 Mounting options GW A Double soleid valve DMV, DMV 00/-/ DMV-00-D, DMV...- - DMV...- MBC...- - MBC...-00 (pressure tap ) GW A V V,,, G /8 seal plug as r DIN ISO 8, G / DIN ISO 8 The seal plugs,,, can also be replaced by a G /8 instrument gland as r DIN ISO 8
Comct pressure switch for multiple actuators GW A GW A/ Mounting options GW...A at pre-mount filter for Dungsmultiple actuator after filter insert GW...A p MB-D... MB-D...0 MB-ZR... MB-ZR...0 MB-VEF MB-VEF 0 DMV-D.../ DMV-D...0/ DMV-SE / DMV-SE 0/ Brief technical data mbar = 00 Pa = 0, kpa 0 mm WS Ty Version Order No. Setting range [mbar] Switching difference p [mbar] GW A GW A pressure switch GW 0 A GW 0 A GW 0 A GW 00 A Supplied in collective ckaging 9 0 98 99 90 9 0, - - 0-0 - 0 00-00 0,, Standard designs GW A [Ag-G-MS-V] with mounting kit Accessories Order-No. for Ty Nominal diameters Mounting kit ( x Mx0, x O-ring) 80 Adapter p Br 9 MB-D 0-0 MB-Z 0-0 DMV- 0-0 Rp /8 - Rp Rp /8 - Rp Rp /8 - Rp Adapter on threaded flange (G /8) 0 MB- 0- DMV- SV- 0-0 Rp /8 - Rp / Rp /8 - Rp Adapter kit for GW A with G / connection 98 DMV- MB- -0 Rp /8 - Rp Scial adapter on request MB- DMV-... MVD-... DN 0 - DN Rp /8 - DN 0 Line socket -pin + E grey GDMW 0 8 We reserve the right to make any changes in the interest of technical progress. Head Offices and Factory Karl Dungs GmbH & Co. KG Siemensstraße -0 D-0 Urbach, Germany Telephone +9 (0)8-80-0 Telefax +9 (0)8-80- Postal address Karl Dungs GmbH & Co. KG Postfach 9 D-0 Schorndorf, Germany e-mail info@dungs.com Internet www.dungs.com