Burkert Type 6211 Diaphragm Valve 2/2 Way Servo

Burkert Type 6211 Diaphragm Valve is a servo-assisted normally closed 2/2-way solenoid valve with a servo diaphragm for use especially with neutral fluids and gaseous media. The valve has a low power consumption, low weight and a compact body. The valve is normally closed by spring force. Energized, the solenoid opens the pilot valve first. Then the medium pressure opens the main valve due to the pressure drop above the diaphragm.

The valve opens.The special design and geometry of the inner parts of the valve result in a soft closing function and cause almost no water hammer. This product can be combined with Male Connector Type 2507 and Cable Plug Type 2516.


  • Push-over solenoid system AC07
  • Energy-saving AC07 coil, max. DN 20
  • Body in brass
  • Pressure range 0.5 up to 10 bar


Product Properties

Dimensions Detailed information can be found in chapter “4. Dimensions” on page 5 of datasheet.
Body Brass acc. to DIN 50930 – 6
Cover PPE/PA
Weight Detailed information can be found in chapter “5.1. Power consumption” on page 6 of datasheet.
Switching function Detailed information can be found in chapter “2. Circuit functions” on page 3 of datasheet.
Thermal insulation class of solenoid coil
Polyamide coil Cable plug Form C – class B
Epoxy coil Cable plug Form B – class H, flying leads

Electrical data

Operating voltage 24 V DC
24 / 110 / 230 V / 50…60 Hz
Voltage tolerance ±10%
Duty cycle 100% continuous rating
Power consumption 4 W
Inrush Inrush 9 VA AC, 4 W DC (warm), 5 W (kalt)
Hold 6 VA AC, 4 W DC

Medium data

Medium temperature
With NBR 0 °C…+70 °C
With EPDM -10 °C…+70 °C
With FKM 0 °C…+70 °C
Operating medium
With NBR Neutral gases and fluids (e.g. compressed air, water, hydraulic oil, oil, fat without additives)
With EPDM Oil and fat-free medium (e.g. alkaline washing and bleaching lyes)
With FKM Per-solutions, oils with additives

Process/Port connection & communication

Port connection G ⅜ … G 1 (NPT or RC on request)
Electrical connection Tag connector sidewards:
• acc. to DIN EN 175301-803 Form C for cable plug Type 2516 (on request, see “6.4. Ordering chart accessories” on page 8 of datasheet)
• acc. to DIN 43650 Form B (industrial standard) for cable plug Type 2507 (see “6.4. Ordering chart accessories” on page 8 of datasheet)

Environment and installation

Installation position As required, preferably with actuator upright
Ambient temperature Max. +55 °C
Degree of protection IP65 with cable plug

Power Consumption

Orifice KV value water Port connection Pressure range3.) Response times4.) Weight
[mm] [m³/h]1.) [mm] [bar]2.) Opening [ms] Closing [ms] [kg]
10 1.9 G ⅜. G ½ 0.5…10 20…25 100…120 0.31
13 3.6 G ½. G ¾ 0.5…10 100…200 200…250 0.44
20 8.3 G ¾. G 1 0.5…10 400 500…700 1.03
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