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Bürkert Servo-operated valve 24951 0290 24 V G 1/2 Nominal width (details) 12 mm Positively controlled 1 pc(s)
Datasheet (PDF)
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Part number:
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Highlights & Details
2/2-way solenoid valve, servo-controlled
- Servo-controlled diaphragm valve up to nominal size DN50
- Fixed-coupled membrane opens without differential pressure
- Vibration-resistant, block screw-mounted coil system
- Energy-saving power reduction in all DC models
Technical specifications
- Sealing material - pre-control sealing material: NBR (nitrile rubber)
- Sealing Material - Seat Seal Material Category: Elastomers
- Sealing Material - Seat Seal Material: NBR (Nitrile rubber)
- Sealing material - external sealing Material: NBR (nitrile rubber)
- Pressure & Temperature - Temperature Medium min -10 °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): 16 bar
- Electrical connection - Device plug in the range of supply: Enclosed
- Electrical connection - Device socket Art. No. - Type: 00314802 - 2518
- Electrical connection - Electrical connection Type: Plug picture Form A according to DIN EN 175301-803
- Electrical connection - Electrical connection Position: In flow direction left
- Electrical connection - Electrical connection Number of contacts: 2 + protective conductor
- Equipment characteristics - installation length 74.5 mm
- Equipment characteristics - main valve operating principle: Diaphragm valve
- Device features - switching time opening max.: 250 ms
- Features - switching time includes max.: 2,000 ms
- Device properties - rated mode/duty cycle: 100%
- Equipment characteristics - valve design: Complete valve
- Equipment characteristics - flow: Over seat
- Device properties - Vacuum version: Yes
- Device characteristics - parts silicone-free: Yes (according to DIS 1000020797)
- Device properties - parts oil and grease-free: Yes (according to DIS 1000020797)
- Device features - Drive type: Lifting anchor
- Device properties - Operation: Force-controlled
- Device Properties - Media Separation: No.
- Device features - switching function: On/off
- Equipment features - open switching time at least 100 ms
- Features - switching time close at least 700 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) - QNn value (gas): 1,900 l/min.
- Nominal width (kV value) - pilot control nominal diameter (mm): 1.5 mm
- Nominal width (kV value) - main valve nominal width 1 (P) (mm): 12 mm
- Nominal width (kV value) - kV Water value: 1.8 m3/h.
- Nominal width (kV value) - Main valve nominal width 1 (inch): 7/16 inch
- Process/line connection – line connection 1 type: Internal thread
- Process/cable connection - cable connection 1 Thread name: 1/2
- Process/cable connection - cable connection 1 Thread type: G.
- Process/line connection – line connection 2 type: Internal thread
- Process/cable connection - cable connection 2 Thread type: G.
- Process/cable connection - cable connection 2 Thread name: 1/2
- 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: Yes
- Voltage - DC voltage: Yes
- Voltage - voltage tolerance positive: 10%
- Voltage - voltage tolerance negative: 10%
- Coil (Kern) - spool size 40 mm
- Coil (Kern) - Coil wiring Overvoltage protection: Suppressor diode
- Coil (Kern) - Coil Switching Rectifier: Yes
- Coil (Kern) - Coil arrangement Pole protection: Yes
- Coil (Kern) - Coil Switching Free-wheeling diode: Yes
- 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) - starting power AC:80 V
- A
- Coil (Kern) - part Kern in contact with medium Material: Stainless steel
- Coil (Kern) - part that is in contact with the medium Plug material: Stainless steel
- Coil (Kern) – rated DC 80 W.
- Coil (Kern) - Reduced power DC 6 W.
- Coil (Kern) – rated AC 6 V
- A
- Materials - main valve material in contact with medium: Stainless steel
- Materials - valve housing cover material: Stainless steel
- Operating principle - fluid line connection Number: 2
- Operation - Valve function Number of switching positions: 2
- Operation - Valve function: A - closed at rest - pressure connection 1 (P/NC)A - closed at rest - pressure connection 1 (P/NC)
- Operation - Manual operation: No.
- Approvals - nominal power 80 W
- Voltage frequency 50/60 Hz
- Product type
Servo-operated valve
- Operating voltage
24 V
- Max. operating pressure
0 bar
- Enclosure material
Stainless steel
- Connection
G 1/2
- Operating temperature
-10 °C (min)
- Media temperature (range)
-10 up to 80 °C
- Manufacturer part #
24951
- Operating pressure (min.)
0 bar
- Min. operating temperature
-10 °C
- Sealant
Nitrile butadiene rubber
- Function
2/2 normally closed mono-stable
- Max. media temperature
80 °C
- Media temperature (min.)
-10 °C
- Medium
ISO 8573-1:2010 [1:4:1] compliance
- Nominal width
12 mm
- Length
74.5 mm
- QNn value
1.900 l/min
IP65
- Max. ambient temperature
55 °C
- Operating principle
Positively controlled
- KV value
1.8 m³/h
- UKCA
yes
Documents & Downloads
Datasheet
Datasheet 3046827 Bürkert Servo-operated valve 24951 0290 24 V G 1/2 Nominal width (details) 12 mm Positively controlled 1 pc(s)
User & Safety Instructions
User & Safety Instructions 3046827 Bürkert Servo-operated valve 24951 0290 24 V G 1/2 Nominal width (details) 12 mm Positively controlled 1 pc(s)
Description
Valve 0290 is a servo-controlled diaphragm valve of the S.EV series. The valve opens without differential pressure. The opening process is supported by the fixed coupling of the diaphragm to the anchor. The integrated soft kick function ensures gentle opening of the material. Different diaphragm materials are available according to the applications. The housing offered is rounded off by stainless steel variants. The coils are crimped with a chemically high-resistance epoxy. For reducing the electrical power consumption a "kick and drop" electronics are cast in the coil for all DC versions. NEMA 4X is available on request.
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