GasMultiBloc Combined regulator and safety shut-off valves Single-stage function MB-D(LE) 5-0 B0 7. Printed in Germany Rösler Druck Edition 06.0 r. 5 758 6 Technical description The DUGS GasMultiBloc integrates filter, regulator, valves and pressure switches in one compact fitting. Various designs are possible by the modular system: - Dirt trap: microfilter - One regulator and two valves: B0 - Two valves are fast opening - One valve is fast opening and one valve is slow opening - Solenoid valves up to 60 mbar as per DI E 6 Class A Group - Sensitive setting of output pressure by proportional regulator as per DI E 88 Class A Group - High flow rates with low pressure drop - DC solenoid drive interference degree - Main volume restrictor at valve V - Hydraulic opening delay - Flange connections with pipe threads as per ISO 7/ - Simple mounting, compact, light-weight The modular system permits individual solutions by using external ignition gas tap in connection with separately controlled valves, by adding a valve proving system, mini/maxi pressure switches, pressure limiters, limit switch at valve V. Application The modular system permits individual solutions in gas safety and regulator engineering. Suitable for gases of families,, and other neutral gaseous media. Approvals EU type test approval as per EU Gas Appliance Directive. MB-...5-0 B0 CE-0085 AP 56 EC type test approval as per EC Pressure Equipment Directive: MB-...5-0 B0 CE006 Approvals in other important gas consuming countries.
Functional description of gas flow. When the valves V and V are closed, chamber A is under inlet pressure.. A hole D in the filter housing connects min. pressure switch with chamber A. If the inlet pressure applied to the pressure switch exceeds the incoming reference value, it switches through to the automatic burner control.. After release by the automatic burner control, valves V and V open. The gas flows through chambers A, B and C of the GasMultiBloc. Operating method of valve-regulator combination on valve V A regulator, compensating for residual pressure is integrated in valve V (pressure regulating part). Armature 7 is not connected with valve plate unit. When it opens, armature 8 pretensions compression spring (V) 5 and releases the valve plate unit. When the valve closes, the armature acts directly on the valve plate unit. The output pressure upstream of valve V is defined by pretensioning regulating spring 8 (tension spring) via setting screw 7. The output pressure acts via opening E on the working diaphragm of the regulator part. In regulated state, setting spring inlet pressure and pressure of working diaphragm are in force equilibrium. The compensating diaphragm ensures the fast closing fun ction of valve V and a high regulating quality. Operating method of valve V The armature of valve V is connected to valve plate unit. When it opens, armature pretensions the closing spring. The max. valve opening can be set by limiting the armature stroke by means of the main volume restrictor 8. Min. opening (residual stroke) of valve (0.5 to.0 mm) The main volume restrictor 8 is set by rotating the adjusting plate or the hydraulic brake 0. The fast and/or slow opening characteristic is influenced by setting fast stroke 9 at the hydraulic brake under the cover. Closing function When the supply voltage to the solenoid coils of valves V and V is interrupted, they are closed within < s by the compression springs. Sectional drawing of MB-DLE... Pressure regulator Microfilter Valve V Connection flange 5 Closing spring V 6 Housing 7 Armature V 8 Regulating spring Pressure taps 0 pa 0 6 0,,,,, 5 screw plug G /8 Electrical connection S 0/S S /S 5 p p AV V C p e 9 Solenoid V 0 Gas pressure switch Electrical connection Valve V Closing spring V Armature V 5 Solenoid V 6 Solenoid housing pbr p e pa pbr P L D MP P L MP 9 8 7 5 5 9 0 8 7 V B E P L V P L 0 Setting: 7 - Gas pressure p a 8 - Main volume 9 - Fast stroke 0 Hydraulic brake Working diaphragm Compensation diaphragm 5 5 Mp Mp P L 6 5 P L 6
Specifications ominal diameters Flange with pipe threads as per ISO 7/ (DI 999) Max. operating pressure MB-D 5 B0 Rp, /, /, and their combinations 60 mbar (6 kpa) MB-D 0 B0 Rp, /, /, and their combinations Output pressure ranges Pressure stage Media Ambient temperature Dirt trap Pressure switches Pressure regulator Solenoid valve V Solenoid valve V MB- S0/S p a : mbar to 0 mbar MB- S/S5 p a : 0 mbar to mbar P Gases of families,, and other neutral gaseous media -5 C to +70 C (Do not operate MB-D below 0 C in liquid gas systems. Only suitable for gaseous liquid gas, liquid hydrocarbons destroy sealing materials.) Sieve with 0.8 mm mesh width, filter made of random laid nonwoven fabric, microfilter, two-layer, changing the filter is possible without removing the valve. Types GW A5, ÜB A / B A to DI E 85 may be attached. For further information, refer to Datasheets 5.0 and 5.07 Pressure Switches for DUGS Multiple Actuators Pressure regulator compensated for residual pressure, leakproof seal when switched off by means of valve V as per DI E 88 Class A. Setpoint spring permanently installed (no spring exchange possible). A vent line above roof is not required. Internal pulse tap provided. Valve as per DI E 6 Class A Group, fast closing, fast opening Valve as per DI E 6 Class A Group Valve V design Main volume restrictor MB fast closing fast opening without MB-D fast closing fast opening with MB-DLE fast closing slowly opening with MB-LE fast closing slowly opening without Measuring / Ignition gas connection Burner pressure monitor Voltage / Frequency Electrical connection Rating / Power consumption Switch-on duration Degree of protection Radio interference For G /8 as per DI ISO 8, refer to Pressure taps on page Connection downstream of valve V, pressure switch mountable on adapter laterally - 60 Hz 0-0 V AC -5 % +0 % Other preferred voltages: 0 VAC, 0-0 VAC, 8 VDC, - 8 VDC Plug connection as per DI E 7- for valves and pressure switches at 0 V AC; +0 C: refer to Dimensions on page 5 % IP 5 as per IEC 59 (E 6059) Interference degree Materials of gas conveying parts Housing Diaphragms, seals Solenoid drive aluminium die casting BR basis, Silopren (silicone rubber) steel, brass, aluminium Installation position Closed position signal contact Solenoid vertically upright or lying horizontally as well as its intermediate positions. Closed position signal contact, type K0/ (DI-tested), mountable on V 6
Equipment variants GasMultiBloc...B0 Single-stage function MB MB-D MB-DLE MB-LE Microfilter Gas pressure switch downstream of filter downstream of valve V on adapter Pressure regulator Valve V, double seat Valve V, double seat Valves opening together Valves opening separately Flange Rp Rp / Rp / Rp 5 B0 0 B0 Filter element can be removed. A suitable GF.../ gas filter must then be fitted upstream. = possible () = on request - = not possible MB-...B0 version V = Valve V = Valve = Filter = Pressure switch, optional 5 = Regulator Mounting of VPS valve proving system possible Mounting of K0/ closed position signal contact possible V 5 V For further information, refer to Datasheet 7.0: GasMultiBloc Modular System, Accessories, Additional equipment Type key of MultiBloc MB- XX XXX XX BOX SXX Control of V and V 0 = common = separated Outlet pressure Inlet pressure = - 0 mbar up to 60 mbar 5 = 0 - mbar up to 60 mbar S = Series (type-independent) Gas train schematic diagram = two A valves for main gas + regulator = two A valves for main gas 7 = two A valves for main gas, one A valve together with V as internal bypass around V + regulator Design type (generation) B Construction size, nominal diameter 0 = D 0, V = Single-seat valve 05 = D 5, V = Single-seat valve 07 = D 0, V = Double-seat valve 0 = D 5, V = Single-seat valve = D, V = Double-seat valve 5 = D 0, V = Double-seat valve 0 = D, V = Double-seat valve Opening behaviour + main volume restrictor without = (MB or MB-ZR) -D = Main volume restrictor -LE = adjustable opening behaviour -DLE = D + LE combination without = single stage ZR = double-stage with partial volume setting first stage MultiBloc 6
Dimensions [mm] MB-DLE 5 = MB-DLE 0 = 00 A 0 MB-DLE 5 = 70 MB-DLE 0 = 0 MB-DLE 5 = MB-DLE 0 = 00 0 06 Rp, / = 56 Rp /, = 8 Type Rp Opening time ominal rating[va] ~(AC) 0 V AC; +0 C S0 S S S5 Weight [kg] MB-D 5 B0 MB-DLE 5 B0 MB-D 0 B0 MB-DLE 0 B0 Rp - Rp - Rp - Rp - < s < 0 s < s < 0 s 6.5 6.6 7.7 7.8 5 6
GasMultiBloc Combined regulator and safety shut off valves Single-stage function MB-D(LE) 5-0 B0 Volumetric flow pressure loss characteristics in regulated state with microfilter 60 00 = mbar MB- 5 S0/S = 0 mbar MB- 5 S/S5 = mbar MB- 0 S0/S = 0 mbar MB- 0 S/S5 00 60 0 Recommended working range p [mbar] 0 0 0 8 6 5 MB-DLE/ZR 5 B0 S Rp / MB-DLE/ZR 0 B0 S 5 Rp Basis + 5 C, 0 mbar, trocken Based on + 5 C, 0 mbar, dry Base + 5 C, 0 mbar, sec Base + 5 C, 0 mbar, secco 0, 0, 0, 0, 0,5 0,6 0,8 5 6 7 8 90 0 0 0 60 00 Vn [m /h] Luft / Air / Aria dv =,00 0, 0, 0, 0,,6 0,8 5 6 7 8 90 0 0 0 60 00 Vn [m /h] Erdgas/atural gas/gaz aturel/gas metano dv = 0,65 f = Dichte Luft Spec. weight air poids spécifique de l'air peso specifico aria Dichte des verwendeten Gases Spec. weight of gas used poids spécifique du gaz utilisé peso specifico del gas utilizzato Gas type at. gas City gas LPG Air Density [kg/m ] 0.8 0.58.08. dv 0.65 0.7.67.00 f..6 0.77.00 V verwendetes Gas/gas used/ gaz utilisé/gas utilizzato = V Luft/air/air/aria x f We reserve the right to make any changes in the interest of technical progress. Head Offices and Factory Karl Dungs GmbH & Co. KG Siemensstraße 6-0 D-7660 Urbach, Germany Telephone +9 (0)78--0 Fax +9 (0)78--66 Postal address Karl Dungs GmbH & Co. KG Postfach 9 D-760 Schorndorf, Germany e-mail info@dungs.com Internet www.dungs.com 6 6