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Bürkert Servo-operated valve 221878 6281 EV 24 V AC G 3/4 sleeve Nominal width (details) 20 mm Servo-controlled 1 pc(s)
Datasheet (PDF)
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Highlights & Details
2/2-way solenoid valve with servo diaphragm
- Switching valve for water
- Short installation length
- High throughflow
- Schliessschlagarm and low noise
- Robust membrane
Technical specifications
- Nominal diameter 20.0 mm
- Line connection G 3/4"
- Kv-Wert 8.5 m³/h
- Pressure range 0.2 - 16 bar
- Voltage 024 V/50 - 60 Hz
- Medium temperature 0 to +120 °C
- Ambient temperature +55 °C max.
- Switching time 0.1 - 4 seconds (depending on the nominal diameter and differential pressure)
- Electrical Power consumption 24 VA (suit), 14/8 cm VA/W (operate in warmer coil)
- Product type
Servo-operated valve
- Operating voltage
24 V AC
- Max. operating pressure
16 bar
- Enclosure material
Brass
- Connection
G 3/4 sleeve
- Operating temperature
0 °C (min)
- Media temperature (range)
0 up to +120 °C
- Manufacturer part #
221878
- Operating pressure (min.)
0.2 bar
- Min. operating temperature
0 °C
- Sealant
FKM
- Function
2/2-way
- Weight
1.100 kg
- Max. media temperature
+120 °C
- Media temperature (min.)
0 °C
- Medium
Inert substances
- Nominal width
20 mm
- Features
Sleeve
- Length
80 mm
- QNn value
9100 l/min
IP65
- Max. ambient temperature
+55 °C
- Min. ambient temperature
0 °C
- Operating principle
Servo-controlled
- KV value
141.67 l/min
Documents & Downloads
Datasheet
Datasheet 626684 Bürkert Servo-operated valve 221878 6281 EV 24 V AC G 3/4 sleeve Nominal width (details) 20 mm Servo-controlled 1 pc(s)
User & Safety Instructions
User & Safety Instructions 626684 Bürkert Servo-operated valve 221878 6281 EV 24 V AC G 3/4 sleeve Nominal width (details) 20 mm Servo-controlled 1 pc(s)
Description
Pilot operated solenoid valve with servo diaphragm for control of liquid and gaseous media. The construction is closing shock-absorbing. For complete opening and closing is a pressure difference of 0.5 bar.
This text is machine translated.
This text is machine translated.
Features
- 2/2-way passage valve
- Closed without current
- Housing Brass material according to DIN EN 50930-6
- Valve internal parts of stainless steel, brass and plastic (PPS)
- Sealing material FKM
- Media: neutral media, such as Compressed air, water
- Coil material epoxide
- Voltage tolerance: ± 10%
- Nominal operating mode: continuous operation 100% duty cycle
- IP65 degree of protection with device socket
- Electrical connection to DIN EN 175301-803 shape A (DIN 43650)
- Any installation position, preferably drive upwards
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