Two-stage safety solenoid valves ZRD/5, ZRLE/5, ZRDLE/5

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1 Two-stage saety solenoid valves ZRD/5, ZRLE/5, ZRDLE/5. Printed in Germany Rösler Druck Edition.0 Nr Technical description The DUNGS saety solenoid valve ZR... is a two-stage automatic shut-o valve as per EN 11 or gas burners and gas appliances. - Max. operating pressure up to 30 mbar - Class A, Group as per EN 11 - mormally closed - Fast closing - Fast opening: ZRD - Slow opening with adjustable ast stroke or start gas volume: ZRLE and ZRDLE - Main and partial volumes adjustable: ZRD and ZRDLE - DC solenoid, rectiier wiring with radio intererence suppression in terminal box - Mountable closed position signal contact to monitor closed position o valve - Pipe thread as per ISO /1 - Flange connection as per DIN 33, ISO Reliable unction, rugged and maintenance-ree Application The solenoid valve is used or securing, limiting, shutting o and releasing gas supply to gas burners and gas appliances. The DUNGS saety solenoid valve ZR... is suitable or gases o amilies 1,, 3 and other neutral gaseous media. Approval EC type test approval as per EC Gas Appliance Directive: ZR 4../5 CE-005 AQ15 EC type test approval as per EC Pressure Equipment Directive: ZR 4../5 CE003 Approvals in other important gas consuming countries.

2 ZRD/5 ZRLE/5 ZRDLE/5 Two-stage solenoid valve, normally when closed, ast opening, ast closing. Main volume adjustable. Partial volume adjustable. Closed position signal contact mountable. Two-stage solenoid valve, normally when closed, slow opening with adjustable ast stroke, ast closing. Main volume adjustable. Partial volume adjustable. Closed position signal contact mountable. Two-stage solenoid valve, normally when closed, slow opening with adjustable ast stroke, ast closing. Main volume adjustable. Partial volume adjustable. Closed position signal contact mountable. Speciications Nominal diameters Pipe thread as per ISO /1 Flange Max. operating pressure Solenoid valve Pressure stage Closing time Opening time Fast stroke Main volume adjustment Partial volume adjustment DN / Connection lange as per DIN 1 Part 1, to it preweld langes as per DIN 33 (PN 1) DN 0 to DN, ISO 005- (PN 1) up to 30 mbar (3 kpa) Valve as per EN 11, Class A, Group, two-stage mode, EN 1531 PN 1 or ZRD; or ZRLE and ZRDLE approx. at approx. +0 C and without ast stroke Manually adjustable or ZRLE and ZRDLE Manually adjustable or ZRL and ZRDLE Manually adjustable or ZRLE and ZRDLE Materials o gas-conveying parts Housing: Seals: aluminium, steel, brass NBR basis Voltage/requency Rating / power consumption Switch-on duration Degree o protection Electrical connection Switching rate Measuring/ignition gas connection Dirt trap Ambient temperature Installation position Closed position signal contact Valve proving system Accessories -0 Hz, 30 V AC (+% -15%); urther voltages on request Reer to type overview % IP 54, IP 5 on request At screw terminals via PG* 11 cable gland (* = heavy-gauge conduit thread) ZRD 4 /5: max. 0/h ZRLE 4 /5, ZRDLE 4 /5: max. /h G 1/4 ISO, on both sides in inlet section, additionally G 3/4 on inlet side, rom size (lange) upwards Sieve installed, mesh width 1 mm -15 C to +0 C Solenoid rom vertically upright to horizontally lying Type K01/1, DIN-tested Type VDK A S0, mountable via G 1/4 test connection, Type VPS 4, mountable on housing to with adapter K01 closed position signal contact, see Datasheet

3 Dimensions [mm] Type DN/Rp DN ø a DN c e ø a c d = largest width b b P max. [VA] Order No. I. I max. ~(AC) 30 V II. I max. Opening ~(AC) time 30 V Dimensions [mm] a b c d e Weight [kg] ZRD 40/5 ZRD /5 ZRD 415/5 ZRD 40/5 ZRD 4040/5 ZRD 40/5 ZRLE 40/5 ZRLE /5 ZRLE 415/5 ZRLE 40/5 ZRLE 4040/5 ZRLE 40/5 30 mbar 30 mbar 1/ DN 1/ DN ,0 4,,5,4 11,0 1,5 3, 4,1,3,, 1,3 ZRDLE 40/5 ZRDLE /5 ZRDLE 415/5 ZRDLE 40/5 1/ ,0 4,,5,4 ZRDLE 400/5 ZRDLE 405/5 ZRDLE 4040/5 ZRDLE 40/5 30 mbar DN 0 DN 5 DN , 5,3 11,0 1,5 3

4 Electrical connection L L1 N P P1 Mp N Mp 1 L1 P1 3 4 L P1 ZRD sectional drawing Housing Sieve 3 Valve plate 4 Closing spring 5 Armature, stage Solenoid, stage Armature, stage 1 Solenoid, stage 1 Electrical connection Setting - Stage Stage p 1 p ZRDLE sectional drawing Housing Sieve 3 Valve plate 4 Closing spring 5 Armature, stage Solenoid, stage Armature, stage 1 Solenoid, stage 1 Electrical connection Setting - Stage Stage 1 - Fast stroke 13 Hydraulic brake 1 p 1 p Functional description The DUNGS saety solenoid valve is an automatic shut-o valve operated with auxiliary power. The electromagnetic drive opens against the orce o the closing spring 4. The stroke o armature can be limited by the setting screw. The hydraulic brake 13 permits slow opening. Fast stroke 1 can be adjusted. I voltage is applied to the solenoid o stage 1, armature opens up to the adjusted partial volume. I voltage is applied to the solenoid o stage, armature 5 opens up to the adjusted main volume. I the auxiliary power is interrupted (operating voltage), closing spring 4 closes the valve within 1 second. The closed position o the valve can be monitored by a mountable closed position signal contact. 4

5 Opening behaviour o ZR.../5 D D LE LE LE LE Flow velocity 1 15 Recommended operating range DN, DIN m/s m/s 0 m/s 30 m/s m/s 0 m/s m/s Flow velocities in heavy thread tubes as per DIN 441 Basedon + 15 C, 13 mbar, dry Vn [m /h] Erdgas/Natural gas/gaz Naturel/Gas metano dv = 0,5 V verwendetes Gas/gas used/ gaz utilisé/gas utilizzato = V Lut/air/air/aria x Gasart Type o gas Type de gaz Tipo di gas Dichte Spec. Wgt. poids spéciique Peso speciico [kg/m 3 ] dv 5 = Dichte Lut Spec. weight air poids spéciique de l air peso speciico aria Dichte des verwendeten Gases Spec. weight o gas used poids spéciique du gaz utilisé peso speciico del gas utilizzato Erdgas/Nat.Gas/ Gaz naturel/gas metano Stadtgas/City gas/ Gaz de ville/gas città Flüssiggas/LPG/ Gaz liquide/gas liquido Lut/Air/ Air/Aria

6 Two-stage saety solenoid valves ZRD/5, ZRLE/5, ZRDLE/5 Flow diagram 1/ DN p [mbar] ,0 0, 0, 0, 0, 0,5 0,4 Based on Volumetric low as per EN C, 13 mbar, dry 0,3 0, Vn [m /h] Lut / Air / Aria dv = 1, Vn [m /h] Erdgas/Natural gas/gaz Naturel/Gas metano dv = 0,5 We reserve the right to make any changes in the interest o technical progress. Head Oices and Factory Karl Dungs GmbH & Co. Siemensstraße - D-30 Urbach, Germany Telephone +4 (0) Fax +4 (0) Postal address Karl Dungs GmbH & Co. Postach 1 D-30 Schorndor, Germany ino@dungs.com Internet