Page 83 - Bürkert

2/2-way Solenoid Valve with Servo Diaphragm

6281 EV G 1/2” - G 2”

• Waterhammer absorbing and low noise
• Rugged moulded diaphragm
4 (B)
• Short installation length

1 (P)
2 (A)

1 (P)

Servo-assisted solenoid valve with servo-diaphragm for the control of Envelope Dimensions [mm] (see datasheet for details)
liquid or gaseous Medium. A pressure difference of 0.5 bar is required
for a complete switchover.

Technical Data

Pressure range 0.2-16 bar max.
Temperature media
NBR -10 °C to +80 °C 2508 cable plug Form A
FKM 0 °C to +120 °C (with polyamide coil +90 °C) not included
Ambient temperature +55 ºC, max.
Voltage tolerance ±10 %
Duty cycle 100% continuous rating
Body material Brass acc. to DIN EN 50930-6
Stainless steel
Seal material NBR, FKM, (EPDM on request)
Coil material Polyamide or Epoxy (Class H)
Power consumption DC: 8 W, AC: 24 VA (inrush),
Circuit function A -14/8 VA (hold)
Circuit function B -16/7 VA (hold)
Protection class IP65 (with cable plug)
DN Size A B C
Electrical connection Tag connector acc. to DIN EN 175301-803 Form A
(previously DIN 43650) for cable plug Type 2508 13 G 1/2” 65 42 100.7
(supplied as standard) 20 G 3/4” 80 60 111.7
Response times 2) 0.1-4 seconds 20 G 1” 80 60 118.7
(depending on orifice and differential pressure)
25 G 1” 95 70 123.2
25 G 1 1/4” 95 70 132.7
2) Measured at valve outlet at 6 bar and +20 ºC.
Opening: pressure build-up 0 to 90%, Closing: Pressure relief 100 to 10%
40 G 1 1/2” 126 99 151.7
40 G 2” 132 99 162.7
Options
• EPDM version up to +100 ºC with epoxy coil
• European gas approval, EPDM with KW W270
• Brass dezincification
• Ex-version available

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