Page 31 - Bürkert

3/2-way Solenoid Valve with pivoted armature pilot drive

0340 G 1/4” - G 1 1/2”

• Servo-Piston for large flow rates
• Pivoted armature isolated pilot
• Manual override as standard 2(A)
• Fast ventilation function
1(P) 3(R)

4(B)
10
12
1(P) 3(R)

Servo-assisted 3/2-way normally closed and normally open solenoid valve Envelope Dimensions [mm] (see datasheet for details)
with a pivoted armature and isolating diaphragm. This series encompasses
a range of diaphragms, sealing materials and electrical connections.
Perfect for pneumatic actuation of very large process valves.
For the complete opening and closing a differential pressure of 0.5 bar is
required.
2508 cable plug Form A
Technical Data included
Temperature media 0 °C to +90 °C
Ambient temperature +55 ºC, max.
Viscosity Max. 21 mm²/s
Voltage tolerance ±10%
Duty cycle 100% continuous rating
Body material Brass
Seal material NBR
Coil material Epoxy (Class H)
Power consumption DC: 8 W, AC: 30 VA (inrush), 15 VA (hold)
Protection class IP65, NEMA 4 (with cable plug) B
Electrical connection Cable plug acc. to DIN EN 175301-803,
Form A (included) C A
Response times [ms] Measured at valve outlet at 6 bar and +20 °C
Opening Pressure build-up 0 to 90%
Closing Pressure decay 100 to 10%
(see Ordering Chart)

Response times 1) Size A B C
Orifice Opening Closing G 1/4” 65 33 154.5
[mm] [ms] [ms] G 1/2” 76 33 179.5
8 25 25 G 3/4” 90 52 215.5
12 30 30 G 1” 110 60 237.5
20 40 40
G 1 1/2” 153 88 274
25 70 70
40 120 120
1) Measured at valve outlet at 6 bar and +20 °C
Opening: Pressure rise 0 to 90%
Closing: Pressure drop 100 to 10%

Options
• Electrical position feedback
• Impulse coil
• Range of diaphragm seals to suit difficult media
• Cable plug with LED and varistor

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