DUNGS MB-ZRD(LE) 407-412 B07, Integrated bypass valve

[{"filename":"mb-zrdle-407-412-b07_datasheet_en_215196.pdf","text":"GasMultiBloc®\n Combined regulator and\n safety shut-off valves\n Two-stage function\n Integrated bypass valve\n\n MB-ZRD(LE) 407 - 412 B07\n\n 7.25\n\n\n\n\n Technical description The modular system permits individual\n The DUNGS GasMultiBloc® integrates filter, solutions by using an internal bypass valve\n regulator, valves and pressure switches in in connection with separately controlled\n one compact fitting. valves, by adding a valve proving system,\n mini/maxi pressure switches, pressure limit-\n - Dirt trap: Fine-mesh sieve ers, limit switches at valve V2.\n - One regulator, two main valves and one\n bypass valve: B07 Application\n - Two single-stage valves, one two-stage The modular system permits individual\n valve solutions in gas safety and regulator engi-\n - Two valves are fast opening, one valve neering. Suitable for gases of families 1, 2,\n is slow opening 3 and other neutral gaseous media.\n - Solenoid valves up to 360 mbar (36 kPa)\n as per DIN EN 161 Class A Group 2 Approvals\n - Sensitive setting of output pressure by EU type testing certificate as per:\n proportional regulator as per DIN EN 88 • EU-Gas Appliances Regulation\n Class A Group 2 • EU-Pressure Equipment Directive\n - High flow rates with low pressure drop Approvals in other important gas consum-\n - DC solenoid drive interference degree N ing countries.\n\n\n\n Edition 01.21 • Nr. 215 196\n - Main volume restrictor at valve V2, by-\n pass restrictor at valve V3\n - Hydraulic opening delay\n - Flange connections with pipe threads as\n per ISO 7/1\n - Simple mounting\n1…6 - Compact, light-weight\n\fSpecifications\n\nNominal diameters MB-…407 B07 MB-…410/412 B07\nFlange with pipe threads as per Rp 1/2, 3/4 Rp 3/4, 1, 1 1/4\nISO 7/1 (DIN 2999) and their combinations and their combinations\n\nMax. operating pressure 360 mbar (36 kPa)\n\nOutput pressure ranges MB-… S22 pa: 4 mbar (0.4 kPa) to 20 mbar (2 kPa)\n MB-… S52 pa: 4 mbar (0.4 kPa) to 50 mbar (5 kPa)\n\nMedia Gases of families 1, 2, 3 and other neutral gaseous media.\n\nAmbient temperature -15 °C to +70 °C (Do not operate MB-D below 0 °C in liquid gas systems.\n Only suitable for gaseous liquid gas, liquid hydrocarbons destroy sealing ma-\n terials.)\n\nDirt trap Fine-mesh sieve. Replacement only possible by dismounting the fitting.\n\nPressure switches Types GW A5, GW A2, NB A2, ÜB A2 mountable as per DIN EN 1854.\n For further information, refer to Datasheet GW A2 No. 215 183 and Datasheet\n GW A5 No. 225 901.\n\nPressure regulator Pressure regulator compensated for residual pressure, leakproof seal when switched off by\n means of valve V1 as per DIN EN 88 Class A. Setpoint spring permanently installed (no spring\n exchange possible). A vent line above roof is not required. Internal pulse tap provided.\n\nSolenoid valve V1 Valve as per DIN EN 161 Class A Group 2, fast closing, fast opening\n\nSolenoid valve V2 Valve as per DIN EN 161 Class A Group 2, fast closing\n Valve V2 design Main volume restrictor Partial volume restrictor\n MB-ZRD fast opening with with\n MB-ZRDLE slow opening with with\n MB-ZRLE slow opening with without\n\n\nSolenoid valve V3 (bypass) Valve as per DIN EN 161 Class A Group 2, with volume restrictor\n\nMeasuring/ignition gas connection For G 1/8 as per DIN ISO 228, refer to Pressure taps on page 4\n\nBurner pressure monitor pBr Connection downstream of valve V2, pressure switch mountable on adapter laterally\n\nVoltage / Frequency 50-60 Hz 220-230 V AC, -15 % +10 %\n\n\nElectrical connection Plug connection as per DIN EN 175301-803\n for valves and pressure switches\n\nRating/power consumption Refer on page 4\nSwitch-on duration 100 %\nDegree of protection IP 54 as per IEC 529 (EN 60529)\nRadio interference Interference degree N\n\nMaterials of gas conveying parts Housing\t\t aluminium die casting\n Diaphragms, seals NBR basis, Silopren (silicone rubber)\n Solenoid drive\t\t steel, brass, aluminium\n\nInstallation position Solenoid vertically upright or lying horizontally as well as its intermediate posi-\n tions.\n\nClosed position signal contact Closed position signal contact, type K01/1 (DIN-tested), mountable to V2\n\n\n\n\n 2…6\n\f Equipment variants\n GasMultiBloc®...B07 407 B07 410 B07 412 B07\n Two-stage function\n MB-ZRD • • •\n MB-ZRDLE • • •\n MB-ZRLE • • •\n Microfilter (standard) with sieve • • •\n Gas pressure switch\n downstream of filter • • •\n downstream of valve V2 on adapter • • •\n Pressure regulator • • •\n Valve V1, double seat • • •\n Valve V2, single seat – • –\n Valve V2, double seat • – •\n Valve V3, single seat with restrictor • • •\n Valve opening separately • • • S...2 version\n Flange Rp 1/2 • – –\n \t\t\t Rp 3/4 • • • • = possible\n \t\t\t Rp 1 – • • (•) = on request\n \t\t\t Rp 1 1/4 – • • – = not possible\n\n\n\n MB-...B07 version\n\n V1 = Valve 1\n V2 = Valve 2\n V3 = Valve 3\n 4 = Filter\n 5 = Pressure switch, optional\n 6 = Regulator\n\n\n Mounting of VPS 504 valve proving system possible\n Mounting of K01/1 closed position signal contact possible\n\n\n Type key of MultiBloc®\n\n\n\n\n 0 = common\n 2 = separated\n\n\n 2 = 4 - 20 mbar up to 360 mbar\n 5 = 4 - 50 mbar up to 360 mbar\n\n\n\n\n 1 = two A valves for main gas + regulator\n 7 = two A valves for main gas, one A valve together\n with V1 as internal bypass around V2 + regulator\n\n\n\n\n 403 = DN 10, V2 = Single-seat valve\n 405 = DN 15, V2 = Single-seat valve\n 407 = DN 20, V2 = Double-seat valve\n 410 = DN 25, V2 = Single-seat valve\n 412 = DN 32, V2 = Double-seat valve\n 415 = DN 40, V2 = Double-seat valve\n 420 = DN 50, V2 = Double-seat valve\n\n\n -D = Main volume restrictor\n -LE = adjustable opening behaviour\n -DLE = D + LE combination\n\n\n without = single stage\n ZR = double-stage with partial volume setting\n first stage\n\n\n3…6\n\f Dimensions [mm]\n\n\n\n\n f\n e\n\n\n h\n\n\n\n\n d\n c\n g a\n c = Space requirement for cover of pressure switch\n f = Space requirement for exchanging the solenoid b\n\n\nTyp Nominal rating [VA] Dimensions [mm] Weight\n ~(AC) 230 V; +20°C…