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

Transcription

1 Two-stage saety solenoid valves ZRLE/5, ZRDLE/ Printed in Germany Edition Nr Technical description The DUNGS saety solenoid valve ZR... is a two-stage automatic shut-o valve as per EN 161 or gas burners and gas appliances. - Max. operating pressure up to 360 mbar (36 kpa) - Class A, Group 2 as per EN mormally closed - Fast closing - Slow opening with adjustable ast stroke or start gas volume: ZRLE and ZRDLE - Main and partial volumes adjustable: 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 7/1 - Flange connection as per DIN EN 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, 2, 3 and other neutral gaseous media. Approval EC type test approval as per EC Gas Appliance Directive: ZR 4../5 CE-0085 AQ7125 Approvals in other important gas consuming countries.

2 ZRLE/5 ZRDLE/5 Two-stage solenoid valve, normally when closed, slow opening with adjustable ast stroke, ast closing. 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 7/1 Flange Max. operating pressure Solenoid valve Closing time Opening time Fast stroke Main volume adjustment Partial volume adjustment Materials o gas-conveying parts 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 DN Rp 3/ /2 2 Connection lange (PN 16) as per DIN EN up to 360 mbar (36 kpa) Valve as per EN 161, Class A, Group 2, two-stage mode, EN 1531 < 1 s or ZRLE and ZRDLE approx. at approx. +20 C and without ast stroke Manually adjustable or ZRLE and ZRDLE Manually adjustable or ZRDLE Manually adjustable or ZRLE and ZRDLE Housing: aluminium, steel, brass Seals: NBR basis Hz, 230 V AC (+10% -15%); urther voltages on request Reer to type overview 100% IP 54, IP 65 on request At screw terminals via PG* 11 cable gland (* = heavy-gauge conduit thread) ZRLE 4 /5, ZRDLE 4 /5: max. 100/h G 1/4 ISO 228, on both sides in inlet section, additionally G 3/4 on inlet side, rom size DN 40 (lange) upwards Sieve installed, mesh width 1 mm -15 C to +60 C Solenoid rom vertically upright to horizontally lying Type K01/1, DIN-tested Type VDK 200 A S02, mountable via G 1/4 test connection, Type VPS 504, mountable on housing Rp 3/4 to Rp 2 with adapter K01 closed position signal contact, see Datasheet

3 Dimensions [mm] Type DN/Rp P max. [VA] Order No. DN ø a 50 DN c e ø a 50 c b b d = largest width I max. ~(AC) 230 V I max. ~(AC) 230 V Opening time Dimensions [mm] a b c d e Weight [kg] ZRLE 407/5 ZRLE /5 ZRLE 415/5 ZRLE 420/5 360 mbar Rp 3/4 Rp 1 Rp 11/2 Rp ZRDLE 407/5 ZRDLE /5 ZRDLE 415/5 ZRDLE 420/5 ZRDLE 4040/5 ZRDLE 4050/5 360 mbar Rp 3/4 Rp 1 Rp 11/2 Rp 2 DN 40 DN

4 Electrical connection ZRDLE sectional drawing Housing 2 Sieve 3 Valve plate 4 Closing spring 5 Armature, stage 2 6 Solenoid, stage 2 7 Armature, stage 1 8 Solenoid, stage 1 9 Electrical connection Setting 10 - Stage Stage Fast stroke 13 Hydraulic brake p 1 p 2 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 7 can be limited by the setting screw. The hydraulic brake 13 permits slow opening. Fast stroke 12 can be adjusted. I voltage is applied to the solenoid o stage 1, armature 7 opens up to the adjusted partial volume. I voltage is applied to the solenoid o stage 2, 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 6

5 Opening behaviour o ZR.../5 V Stage II. ZRLE /5 ZRDLE /5 Stage I. ZRLE /5 ZRDLE /5 t Flow velocity 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 6 = 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 ZRLE/5, ZRDLE/5 Flow diagram We reserve the right to make any changes in the interest o technical progress. Head Oices and Factory Karl Dungs GmbH & Co. KG Siemensstraße 6-10 D Urbach, Germany Telephone +49 (0) Fax +49 (0) Postal address Karl Dungs GmbH & Co. KG Postach D Schorndor, Germany ino@dungs.com Internet 6 6