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DUNGS DUNGS Vietnam , DUNGS Viet nam ,  DUNGS COMBUSTION CONTROLS DUNGS COMBUSTION CONTROLS Vietnam

DMV 50025, DMV 50025, DMV 50050, DMV 50050

Double solenoid valve

DN 25, DN 50 nominal diameters

DMV 50025

DMV 50050

Technical description

The  DUNGS  double  solenoid  valve  DMV  integrates  two  solenoid  valves  in  one  compact fitting.

-  Automatic shut-off valves as per DIN EN

161 Class A Group 2.

- Two A valves in one housing

- Double seat valves

-  High flow rates

-  Max. operating pressure up to 5.0 bar

(500 kPa)

- Fast closing

- Fast opening

- DC solenoid

- Low electric power consumption through power switching

- Compact, light-weight

Application

Double solenoid valves are used where two single valves were mounted previously. In connection with DUNGS gas regulators and additional  components,  a  wide  variety  of  regulating tasks can be performed.

Suitable  for  gases  of  families  1,  2,  3  and other neutral gaseous media.

Approvals

EC type testing certificate as per:

• EC-Gas Appliances Regulation

• EC-Pressure Equipment Directive

Approvals in other important gas consuming countries

Specifications

Nominal diameters

Flange

DN     25    50

Connection flange as per DIN 2501 Part 1, to fit preweld flanges as per DIN 2633

(PN 16) DN 25 - DN 50, ISO 7005 - 1 (PN 16), ISO 7005 - 2 (PN 16)

Construction length as per DIN 3202 Part 1, row F1 for DN 50

Max. operating pressure

5000 mbar (500 kPa)

max. pressure difference ∆p = 500 mbar

max. flow velocity = 50 m/s

Solenoid valve V1

Automatic shut-off valve as per EN 161: Class A, Group 2,

Version: double-seat

Solenoid valve V2

Automatic shut-off valve as per EN 161: Class A, Group 2,

Version: double-seat

Closing time

< 1 s

Opening time

< 1 s

Materials of gas conveying parts

Housing: 

aluminium, steel, no non-ferrous metals

Seals at valve seat:

 NBR basis, suitable for gases as per G260/l

Ambient temperature

-15 °C bis +60 °C

Installation position

Solenoid vertically upright to lying horizontally

Dirt trap

Sieve installed. To protect the complete gas train we recommend you to install

an upstream gas filter

Measuring gas connection

G 1/4 DIN ISO 228 centrally upstream of V1 and downstream of V2

G 1/4 DIN ISO 228 between V1 and V2

Voltage/frequency

50 - 60 Hz, 230 V AC, -15% +10%, further voltages on request

Other preferred voltages: 110 V - 120 V AC, 24 V DC

Rating / power consumption

Version

Starting power

approx. [W]

Holding power

approx. [W]

Break-away

starting current

[A]

Holding

current [A]

at 230 V AC, + 20 °C

All indications are effective values

Power supply display

Green LED

Degree of protection / switch-on

duration

IP 54 as per IEC 529 (EN 60529)

Switching cycles

60 per hour (30 s on/off)

Electrical connection

At screw terminals via PG 11

Plug connection as per DIN 175 0301-803 can be retrofitted

Radio interference

Degree of interference N