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6712 2/2-Way Whisper Valve
Brand: Burkert Fluid Control Systems
Fluidical "point-of-care" applications, as dialysis or artificial respiration, and applications at the "point-of-use" for example at pipetting arms in biological analysis have special requirements. The new media separated Whisper Valve type 6712 was particularly developed for these applications. Especially the reduced switching noise and the good flush ability set a new benchmark.
But also in industrial applications like inkjet printers, the type 6712 is the first choice due to the high lifecycle and the excellent switching dynamic. With the modular design and the available material variants this valve is applicable with virtually all liquids and gases in life science and industrial applications.
A valve that combines dosing accuracy and flush ability.
Features- Highest chemical resistance with minimal internal volume
- Compact design with 0.27" (7 mm) width
- Switching noise < 36 dB
- For dosing applications with excellent flush ability
1 - 12 of 14 Part Numbers
267 651
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PEEK / FFKM
- Electrical Connection - Strand
- Voltage - 24 Vdc
273 187
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PEEK / FFKM
- Electrical Connection - Strand
- Voltage - 12 Vdc
273 188
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PPS / EPDM
- Electrical Connection - Strand
- Voltage - 12 Vdc
273 189
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PPS / FKM
- Electrical Connection - Strand
- Voltage - 12 Vdc
273 190
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PPS / EPDM
- Electrical Connection - Strand
- Voltage - 24 Vdc
273 191
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PPS / FKM
- Electrical Connection - Strand
- Voltage - 24 Vdc
273 206
- Orifice Size / Water Cv / Air QNn - 0.4 (mm) / 0.006 (GPM) / 5.8 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-5 (bar) / 1.8 (bar)
- Body / Seal Material - PEEK / FFKM
- Electrical Connection - Strand
- Voltage - 24 Vdc
273 226
- Orifice Size / Water Cv / Air QNn - 0.4 (mm) / 0.006 (GPM) / 5.8 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-5 (bar) / 1.8 (bar)
- Body / Seal Material - PPS / EPDM
- Electrical Connection - Plug
- Voltage - 12 Vdc
273 231
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PEEK / FFKM
- Electrical Connection - Plug
- Voltage - 12 Vdc
273 232
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PPS / EPDM
- Electrical Connection - Plug
- Voltage - 12 Vdc
273 233
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PPS / FKM
- Electrical Connection - Plug
- Voltage - 12 Vdc
273 235
- Orifice Size / Water Cv / Air QNn - 0.8 (mm) / 0.014 (GPM) / 13.1 (L/min)
- Pressure Range / Maximum Back Pressure Output - 0-3 (bar) / 1.2 (bar)
- Body / Seal Material - PEEK / FFKM
- Electrical Connection - Plug
- Voltage - 24 Vdc
1 - 12 of 14 Part Numbers
Specifications
Ambient Pressure
- Tightness to Outside (Relative Pressure) - psi: 116 (kPa: 800, bar: 8)
Ambient Temperature Range
- EPDM: 0° to 55° C (32° to 131° F)
- FFKM: 10° to 55° C (50° to 131° F)
- FKM: 15° to 55° C (59° to 131° F)
Approvals & Certifications
- Suitability for Drinking Water: KTW (W270)
- Suitability for Foodstuffs: FDA
Cable Length
- Electrical Connection: 1.64 feet (0.5 m)
Consumption
- Power: 0.9 W - No Further Power Reduction Possible
Diaphragm Material
- Medium Contact: EPDM
- Medium Contact: FFKM
- Medium Contact: FKM
Duty Cycle
- 100 % Duty Cycle, Continuous Operation
Electrical Connectors
- 26 AWG
- Single Flying Leads
- Solder Pins
Electrical Contacts
- Normally Closed
Enclosure, Body Material
- Coil: Nickel-Plated
- Fluid: PEEK
- Fluid: Polyphenylene Sulfide (PPS)
Environmental Protection
- IP40 According IEC 60144
Flow Rate
- Air: 5.8 to 13.1 QNn (L/min)
- Water: 0.005 to 0.012 m³/hour (Kv)
- Water: 0.006 to 0.014 gpm (Cv)
Frequency
- Switching Noise: 36 dB (A)
- Switching: 50 Hz
Materials of Construction
- Cap: Polyphenylene Sulfide (PPS)
Media
- Aggressive Gases & Liquids
Mounting Position
- Preferably with Actuator Upright
Orifice Size
- 0.015" to 0.031" (0.4 to 0.8 mm)
Output Pressure
- Relative Pressure (Back Pressure) - psi: 17.4 to 26.1 (kPa: 120 to 180, bar: 1.2 to 1.8)
Power Supply
- 12 Vdc
- 24 Vdc
Pressure Range
- psi: 0 to 72.52 (kPa: 0 to 500, bar: 0 to 5)
Process Temperature
- EPDM: 0° to 55° C (32° to 131° F)
- FFKM: 10° to 55° C (50° to 131° F)
- FKM: 15° to 55° C (59° to 131° F)
Response Time
- EPDM (Closing): 0.9 to 1.2 ms
- EPDM (Opening): 0.5 to 0.8 ms
- FFKM (Closing): 1 to 1.8 ms
- FFKM (Opening): 0.7 to 0.9 ms
- FKM (Closing): 1 to 3.2 ms
- FKM (Opening): 0.8 to 0.9 ms
Seat / Seal Material
- Flange Seal: EPDM
- Flange Seal: FFKM
- Flange Seal: FKM
Solenoid Type
- 2/2-Way
Tolerance
- Voltage: ± 10 %
Viscosity
- 21 mm²/sec, Max.