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Servo-assisted 3/2 way piston valve

Type 0344 / Ident No. 43691

Produkt-Foto Typ 0344

The depiction of the products may differ from the actual specific design.

  • Produkt-Foto Typ 0344
  • Produkt-Foto Typ 0344
  • Massbild
  • Massbild
  • Massbild
  • Ersatzteil-Zeichnung Bürkert

3/2-way-solenoid valve; servo-piston

  • Servo-assisted piston valve with diameter of up to DN 40
  • Increased operational safety with pivoted armature technology
  • Suitable for vacuum applications
  • Service-friendly manual override
  • Energy-saving impulse versions

For selecting the correct product please refer to the technical data, images and notes for proper use according to the data sheet.

Product description

The 0344 valve is a servo-assisted 3/2-way piston valve. A minimum differential pressure is required for the valve to function. A maintenance-free, media-separated 3/2-way pivoted armature valve (type 0331) is used as a pilot valve. The pivoted armature valve can be easily converted from NC to NO functioning principle by rotating it on the main seat. The solenoid coils are moulded with a chemically resistant epoxy. The 0344 is equipped with manual override for commissioning and testing. For reduced energy requirements all coils can be delivered with electronic power reduction or as an impulse version.. The switching status can be indicated with position feedback as a binary or NAMUR signal. In combination with a plug in accordance with DIN EN 17301-803 Form A, the valves satisfy protection class IP65/67.

Commodity Codes

Technical attributes

Type 0344
Operation servo-controlled
Actuator type Pivot
Main valve operating principle Piston
Switch function on/off
Media separation Yes
Valve function C - normally inlet port 1 (P/NC) closed, outlet port 2 (A/OUT) conectedwith exhaust port 3 (R/NO)
Fluidic port connection number 3 PCE
Valve function number of switching positions 2 PCE
Valve function manual actuation Yes
Valve function manual actuation type Key button
Valve function manual actuation material PA (Polyamide)
Valve function manual actuation stop Yes
Valve function manual actuation screw slot No
Nominal pressure min -1 bar
Nominal pressure max (liquid) 3 bar
Main valve orifice 1 (P) (mm) 25 mm
Kv value (water) 10 m3/h
QNn value (gas) 11000 l/min
Main valve wetted material Red bronze
Port connection 1 type Inner thread
Port connection 1 thread type G
Port connection 1 thread marking 1
Port connection 2 type Inner thread
Port connection 2 thread type G
Port connection 2 thread marking 1
Port connection 3 type Inner thread
Port connection 3 thread type G
Port connection 3 thread marking 1 1/4
Valve seat material Red bronze
Pilot control material medium-contacting Brass
Seat seal material NBR (Nitrile rubber)
Sealing toward outside material NBR (Nitrile rubber)
Temperature environment max 55 °C
Temperature medium min 0 °C
Temperature medium max 90 °C
Voltage / rated voltage 24 V
Voltage / rated voltage 24 V
Voltage tolerance negative 10 %
Voltage tolerance positive 10 %
AC voltage No
DC voltage Yes
Battery voltage Yes
Rated power DC 8 W
Reduced power DC 8 W
Rated power consumption 8 W
Electrical connection sort Plug pattern form A according to DIN EN 175301-803
Electrical connection number of contacts 2 + Grounding conductor
Cable plug in delivery enclosed
Cable plug art. no. - type 00008376 - 2508
Electrical connection position top
Protection type (IP max. with suitable connector) 65
Coil type block bolted
Coil insulation material (encasement) Epoxy
Coil wiring overvoltage protection without
Coil wiring rectifier No
Coil wiring polarity recovery diode No
Thermal insulation class of the actuator H
Nominal operation/Duty cycle 100 %
Switch time open max. 70 ms
Switch time close max. 70 ms
Valve setting opening time No
Valve setting closing time No
Back-pressure-resistant version No
Vacuum version Yes
Analysis version No
Oil burner valve No
Steam version No
Pilot control seal material NBR (Nitrile rubber)
Low-noise version No
Main valve with integrated screen No
Without mounting No
Valve construction Valve complete
Weight 2,950000 kg
Weight 2,950000 kg
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Applications & Tools

CAD Model

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Language / Country
ABD EU-DoC|EU Declaration 1000153579-A_344_EU-DoC.pdf 1.2 MB EN,FR,DE
DTS Magnetventil für Vakuum DS0344-Standard-DE-DE.pdf 227 kB DE / DE
DTS Solenoid Valve for vaccum DS0344-Standard-EU-EN.pdf 211.7 kB EN / EU
MAN Operating Instructions MA0340-Standard-EU-ML.pdf 1.6 MB EN,FR,DE / EU
Item No.
01 45041
02 214650