GasMultiBloc MB-DLE Dungs (MB-B) – single-stage operation
• This GasMultiBlocMB-DLE integrates a filter, pressure regulator, two class A valves, a bypass valve (B07) and pressure switches in one compact fitting.
• The modular system permits individual solutions by using external ignition gas tap in connection with separately controlled valves, by adding a valve proving system, min/max pressure switches, pressure limiters, partial volume setting by closing stroke limiter at valve V2 and regulator blocking for liquid gas applications.
• Maximum operating pressure is 360 mbar (200 mbar for MB-DLE 403), ambient temperature -15÷70oC (only above 0 for LPG), degree of protection IP 54.
• The two valves are controlled in common or separated, depending on the model; both are fast closing. V1 is with fast-opening and V2 with slow-opening.
• Main volume restrictor at valve V2.
• MB-DLE B07 series has an additional bypass valve with fast opening.
• Different pressure switch types mountable: GW A5, GW A2, NB A2, UB A2. Standard equipped with GW 150 A5.
• The pressure regulator has a setpoint spring permanently installed, no exchange possible. A vent line above roof is not required.
• MB-DLE 403-412 models have a fine mesh sieve, replacement only possible by dismounting the fitting. MB-DLE 415 and 420 have a pre-mount filterthat can be changed without removing the valve.
• Simple mounting, compact, light-weight.
• Suitable for gases of families 1, 2, 3 and other neutral gaseous media.

GasMultiBloc MB-ZRDLE Dungs (MB-ZR) – two-stage function
• This MB GasMultiBloc MB-ZRDLE integrates a filter, pressure regulator, two class A valves, a bypass valve (B07) and pressure switches in one compact fitting.
• The modular system permits individual solutions by using external ignition gas tap in connection with separately controlled valves, by adding a valve proving system, min/max pressure switches, pressure limiters, limit switch and closing stroke limiter at valve V2, regulator blocking for liquid gas applications.
• Maximum operating pressure is 360 mbar, ambient temperature -15÷70oC (only above 0 for LPG), degree of protection IP 54.
• The two valves are controlled in common or separated, depending on the model; both are fast closing. V1 is with fast-opening and V2 with fast or slow-opening.
• Main volume restrictor and partial volume restrictor at valve V2.
• MB-ZRDLE B07 series has an additional bypass valve with one stage and fast opening.
• Different pressure switch types mountable: GW A5, NB A2, UB A2. Standard equipped with GW 150 A5.
• The pressure regulator has a setpoint spring permanently installed, no exchange possible. A vent line above roof is not required.
• MB-ZRDLE 405-412 models have a fine mesh sieve, replacement only possible by dismounting the fitting. MB-ZRDLE 415 and 420 have a pre-mount filter that can be changed without removing the valve.
• Simple mounting, compact, light-weight.
• Suitable for gases of families 1, 2, 3 and other neutral gaseous media.

Type overview Pressure switches for gases and air, pmax ≤ 600 mbar

LGW…A4/2 Square shape:
• IP 65.
• Die-cast hood.
• Epoxy coating.
• G 1/4 threaded connection.
• Switching pressure adjustable by hand wheel.

GW…A2 Square shape:
• Gas pressure switch for DUNGS multiple actuators.
• O ring flange connection GW…A3 Square shape.
• Gas pressure switch for multiple actuators.
• O ring flange connection.

GW…A4 Square shape:
• Gas pressure switch.
• G 1/4 threaded connection.
• Switching pressure adjustable by hand wheel.

GW…A5 Rectangular shape:
• Compact pressure switch for DUNGS multiple actuators.
• O ring flange connection.

GW…A6 Rectangular shape:
• Compact pressure switch.
• G 1/4 threaded connection.
• Switching pressure adjustable by hand wheel.

Double pressure switches for gases and air 

GW…A6/…A6 Rectangular shape:
• Flanged single housings.
• Switching pressures adjustable by hand wheel.

Pressure switches for gases and air, pmax ≥ 2,0 bar.

GW 500/2000/6000 A4 Round shape:
• G 1/4 threaded connection.
• Switching pressure adjustable by hand wheel GW 500 A4/2, GW 2000 A4/2, GW 6000 A4/2.

Pressure limiters for gas and air

NB…A2 Square shape:
• Interlocked as pressure falls.
• Pressure switch for DUNGS multiple actuators NB…A4 Square shape.
• Interlocked as pressure falls.
• Switching pressure adjustable by hand wheel.
• Compact pressure switch.

ÜB…A2 Square shape:
• Interlocked as pressure rises.
• Pressure switch for DUNGS multiple actuators ÜB…A4 Square shape.
• Interlocked as pressure rises.
• Switching pressure adjustable using hand wheel.
•Compact pressure switch.

Differential pressure switches for gases and air

GGW…A4 Square shape:
• Differential pressure switch for gas in pressure range.
• G 1/4 and G 1/8 threaded connections.
• Switching pressure adjustable by hand wheel.

GGW…A4/U Square shape:
• Differential pressure switch for gas in vacuum range.
• G 1/4 and G 1/8 threaded connections.
• Switching pressure adjustable by hand wheel.

LGW…A4 Square shape:
• Differential pressure switch for air, pressure switch for gas.
• G 1/4 and G 1/8 threaded connections.
• Switching pressure adjustable by hand wheel.

Differential pressure switches for air

LGW…A1 Square shape:
• Fixed adjustment at factory.
• Connection for 4 mm dia. hose.

LGW…A2 Square shape:
• Switching pressure adjustable by hand wheel.
• Connection for 4 mm dia. hose LGW…A2P Square shape.
• Test button.
• Switching pressure adjustable by hand wheel.
• G 1/4 (tapered) and G 1/8 threaded connections.

LGW…C2 Round shape:
• Large diaphragm diameter.
• Switching pressure adjustable by hand wheel.
• Connection for 4 mm dia. and 6 mm dia. hoses.

LGW…C3 Round shape:
• Fixed adjustment at factory.
• Connection for 6 mm dia. hose.

LGW…A4/2 Square shape:
• IP 65.
• Die-cast hood.
• Powder-coated.
• G 1/4 and G 1/8 threaded connection.
• Switching pressure adjustable by hand wheel.