6724
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DATA SHEET 2/2 or 3/2-way Whisper Valve with media separation • Highest chemical resistance • Compact design with 8.9 mm installation width • DN 0.8 mm (vacuum up to 5 bar) and 1.2 mm (vacuum up to 3 bar) • Very fast, almost silent switching with < 20 dB (A) and very low power consumption • High back-pressure tightness, excellent cleanability and 100 % duty cycle Product variants described in the data sheet may differ from the product presentation and description. Can be combined with Type 2503  Cable plug for whisper valve Types 6712 and 6724 Type 8763  Pressure controller for precise time-pressure dosing 1000262565 | Standard | EU | en | 202104 | 09 © Christian Bürkert GmbH & Co. KG, Subject to alteration Type description Many fluidic processes moving closer to where they are actually required. In the field of medical devices, for example, treatments such as dialysis can be provided to patients in convenient surroundings at home. Washing units in analytical equipment are positioned on the pipetting arm or directly on the print head in printing applications. This imposes different requirements on the components used. Solenoid valves must be able to switch without being heard. They need to be smaller and lighter to be used in mobile devices. However, their ability to achieve a long service life and excellent switching characteristics is every bit as important. The Whisper Valve Type 6724 combines all of these traits and, thanks to its modular structure and range of available material variants, this valve is universally applicable.

Table of contents 1. General technical data Visit product website

1. General technical data Product properties Dimensions Materials Body Seal Typical product service life Internal volume Nominal diameter Circuit functions Performance data Pressure range Switching noise Switching times3.) Duty cycle Electrical data Power supply Voltage tolerance Power consumption Medium data Operating medium Viscosity (max.) Medium temperature Detailed information can be found in chapter “5. Dimensions” on page 5. PEEK or PPS FFKM, EPDM or FKM 10 million switching cycles (acc. to laboratory duration tests)1.) Bürkert flange (9 x 26): approx. 38 µl Bürkert flange (26 x 57)...

2. Product versions Bürkert flange (9 x 26) Bürkert flange (26 x 57) horizontal Tube connector version 3. Circuit functions Circuit functions Description Type: A, Solenoid valve 2/2 way Direct acting Normally closed Type: B, Solenoid valve 2/2 way Direct acting Normally open Type: T, Solenoid valve 3/2 way Direct acting Flow direction optional 4. Materials 4.1. Chemical Resistance Chart – Bürkert resistApp Bürkert resistApp – Chemical Resistance Chart You want to ensure the reliability and durability of the materials in your individual a pplication case? Verify your combination of media and...

Element Cap Coil housing Valve body Fluid housing (medium contact) Flange seal (medium contact) Diaphragm (medium contact) Material LCP nickel-plated LCP or PPS PEEK or PPS FFKM, FKM or EPDM FFKM, FKM or EPDM 5. Dimensions 5.1. Bürkert flange (9 x 26) Note: • Dimensions in mm • Including fastening screws M2 x 10 16.1 Visit product website  

5.2. Bürkert flange (9 x 26) interface Note: Dimensions in mm Preferred threaded connection 2/2 way connection Further possible connection (diagonal) 2/2 way connection Visit product website  

5.3. Bürkert flange (26 x 57) horizontal Note: • Dimensions in mm • Optional: Flange can be turned by 180° • Including fastening screws M2 x 6 16.1 5.4. Bürkert flange (26 x 57) interface Visit product website 

5.5. Threaded port version (UNF ¼"- 28) Visit product website 

5.6. Tube connector version Note: Dimensions in mm 26 16.1 Visit product website  

6. Performance specifications 6.1. Medium pressure Circuit function Pressure range under [bar] Type: A, Solenoid valve 2/2 way Direct acting Normally closed Type: B, Solenoid valve 2/2 way Direct acting Normally open Type: T, Solenoid valve 3/2 way Direct acting Flow direction optional 1.) Connect technical vacuum (- 0.8 bar) to NC or NO. Do not apply a vacuum at the valve outlet (COM/OUT), otherwise the flow rate may be considerably reduced. 2.) Up to 2 bar, the flow direction is permissible even against the specification. 3.) Low vacuum due to back pressure at media flow permissible. In...

7.3. Ordering chart Standard version Note: • Please order plug connector with lead or electronic separately (see “7.4. Ordering chart accessories” on page 12). • ncluding mounting screws for the following port connections: I Bürkert flange (9 x 26): M2x10-TORX T6-A2 Bürkert flange (26 x 57) horizontal: M2x6-TORX T6-A2 • Mounting screws M1.6x8-ISK for replacing Type 6604 with Type 6724 available on request. Circuit function Orifice Port connection Max. Seal Body Voltage/ pressure material material frequency difference [mm] A, solenoid valve 2/2 way Direct acting Normally closed Tube...

7.4. Ordering chart accessories Plug connector Type 2503 Note: Customised for connecting plates, on request. Accessories Plug connector with 500 mm flying leads and boost-close electronics to increase the permissible pressure under NC. For further information refer to the operating instructions for Type 2503   BoostClose or see data sheet Type 2503  . Plug connector with 500 mm flying leads and Soft Close Elektronic for noise minimization. For further information refer to the operating instructions for Type 2503   SoftClose or see data sheet Type 2503  . Fittings and hoses For UNF...

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