
Highlights & Details
3/2-way solenoid valve; direct action
- Direct-acting, media-separated valve up to nominal diameter DN 4
- Pilot valve with Bürkert-specific flange version (SFB)
- Maintenance-free folding anchor technology
- Service-friendly, robust hand operation
- Explosion-proof versions
Technical specifications
- Drive - manual operation Material: PA (polyamide)
- Sealing Material - Seat Seal Material Category: Elastomers
- Sealing Material - Seat Seal Material: NBR (Nitrile rubber)
- Sealing material - external sealing Material: NBR (nitrile rubber)
- Sealing Material - Seat Seal Material Shore hardness: 70
- Pressure & Temperature - Temperature Medium min 0 °C.
- Pressure & Temperature - Temperature Medium max. 80 °C.
- Pressure & temperature - temperature Surroundings max. 55 °C
- Pressure & temperature - nominal pressure at least 0 bar
- Pressure & temperature - Backpressure proof design: No.
- Pressure & Temperature - nominal pressure max (liquid): 10 bar
- Pressure & Temperature - Temperature Surface max. 155 °C
- Electrical connection - Electrical connection Type: Plug picture Form A according to DIN EN 175301-803
- Electrical connection - Electrical connection Position: Above
- Electrical connection - Electrical connection Number of contacts: 2 + protective conductor
- Electrical connection - Electrical connection Polarity: Irrelevant
- Electrical connection - Electrical connection Material: Brass
- Equipment characteristics - installation length 46 mm
- Equipment characteristics - main valve operating principle: Seat valve
- Device features - switching time opening max.: 20 ms
- Features - switching time includes max.: 20 ms
- Device properties - rated mode/duty cycle: 100%
- Equipment characteristics - valve design: Complete valve
- Equipment properties - Flow: Under seat
- Device properties - Vacuum version: No.
- Device properties - Mounting type: Metric screws
- Device features - Drive type: Folding anchor
- Device properties - operation: Direct action
- Device Properties - Media Separation: Yes
- Device features - switching function: On/off
- Equipment features - open switching time at least 10 ms
- Features - switching time close at least 10 ms
- Device Properties - Analysis Execution: No.
- Equipment properties - Valve setting Opening time: No.
- Equipment properties - Valve setting Closing time: No.
- Equipment properties - Oil burner valve: No.
- Device Properties - Steam Type: No.
- Equipment properties - Main valve with integrated screen: No.
- Nominal width (kV value) - main valve nominal width 1 (P) (mm): 3 mm
- Nominal width (kV value) - kV Water value: 0.12 m3/h.
- Nominal width (kV value) - Main valve nominal width 1 (inch): 1/8 inch
- Nominal width (kV value) - main valve nominal width 3 (R) (mm): 3 mm
- Process/cable connection - cable connection 1 type: Flange
- Process/cable connection - cable connection 2 type: Flange
- Process/line connection - line connection 1 flange: Bürkert-Flanch 32 x 46 design A2Bürkert-Flanch 32 x 46 design A2
- Process/cable connection - cable connection 3 type: Flange
- Process/line connection - line connection 2 flange: Bürkert-Flanch 32 x 46 design A2Bürkert-Flanch 32 x 46 design A2
- Process/line connection - line connection 3 flange: Bürkert-Flanch 32 x 46 design A2Bürkert-Flanch 32 x 46 design A2
- Protection class IP rating (max. for suitable connection) IP65
- Voltage - battery voltage: Yes
- Voltage - voltage min. / nominal voltage: 24 V
- Voltage - voltage max. / nominal voltage 24 V
- Voltage - AC voltage: No.
- Voltage - DC voltage: Yes
- Voltage - voltage tolerance positive: 10%
- Voltage - voltage tolerance negative: 10%
- Coil (Kern) - Coil wiring Overvoltage protection: None
- Coil (Kern) - Coil Switching Rectifier: No.
- Coil (Kern) - Coil arrangement Pole protection: No.
- Coil (Kern) - Coil Switching Free-wheeling diode: No.
- Coil (Kern) - low-noise version: No.
- Coil (Kern) - coil type: Block screwed
- Coil (Kern) - Material coil (envelope): EP (epoxy resin)
- Coil (Kern) - Thermal insulation class of the drive: H
- Coil (Kern) – rated DC 11 W.
- Coil (Kern) - Reduced power DC 11 W.
- Materials - main valve material in contact with medium: Brass
- Materials - valve seat material: Brass
- Operating principle - fluid line connection Number: 3
- Operation - Valve function Number of switching positions: 2
- Operation - valve function: C - closed at rest - pressure port 1 (P/NC), working port 2 (A/OUT) after port 3 (R/NO) open C - closed at rest - pressure port 1 (P/NC), working port 2 (A/OUT) open after port 3 (R/NO)
- Operation - Manual operation: Yes
- Mode of action – manual operation Type: Button
- Mode of action - manual actuation Locking: Yes
- Approvals - nominal power 8 W
- Product type
Magnetic valve
- Operating voltage
24 V
- Max. operating pressure
0 bar
- Enclosure material
Brass
- Connection
Flange
- Operating temperature
0 °C (min)
- Media temperature (range)
0 up to 80 °C
- Manufacturer part #
42991
- Operating pressure (min.)
0 bar
- Min. operating temperature
0 °C
- Sealant
Nitrile butadiene rubber
- Function
3/2-way
- Max. media temperature
80 °C
- Media temperature (min.)
0 °C
- Medium
Corrosive substances
- Nominal width
3 mm
- Features
Flange
- Length
46 mm
IP65
- Max. ambient temperature
55 °C
- Operating principle
Direct action
- KV value
0.12 m³/h
Documents & Downloads
Datasheet
Datasheet 3047070 Bürkert Magnetic valve 42991 0331 24 V Flange Nominal width (details) 3 mm Direct action 1 pc(s)
User & Safety Instructions
User & Safety Instructions 3047070 Bürkert Magnetic valve 42991 0331 24 V Flange Nominal width (details) 3 mm Direct action 1 pc(s)
Description
Valve 0331 is a direct-acting, media-separated hinged valve. It is available in 3/2- and 2/2-way versions. As 3/2-way version it can be used as distributor or mixing valve. Depending on the applications, different membrane materials and modes of operation are available. The housing range comprises brass, stainless steel, PEEK and polypropylene. The coils are crimped with a chemically high-resistance epoxy. Since the coil system is separated from the Medium by a diaphragm, the valve is particularly suitable for critical media such as aggressive acids and alkalis. The 0331 is equipped with manual operation for commissioning and testing. To reduce the power requirement, all coils can be supplied with an electronic power reduction or as a pulse version. The switching state can be sent via a position feedback signal as binary or NAMUR signal.
This text is machine translated.
This text is machine translated.
Hints
The kv factor indicates the volume flow through a valve, measured in litres/min at 1 bar and at a water temperature between 5 and 30°C. The QNn factor indicates the gas volume flow, measured in litres/min










