6724

6724 BURKERT | Alldatasheet

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Visit product website  DATA SHEET Type 2503  Cable plug for whisper valve Types 6712 and 6724 Type 8763  Pressure controller for precise time-pressure dosing Standard | EU | en | 2024-02-01 | 14 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 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 switch- ing 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. Product variants described in the data sheet may differ from the product presentation and description. Type descriptionCan be combined with Type 6724 © Christian Bürkert GmbH & Co. KG, Subject to alteration

2 | 15Visit product website  Table of contents 1. General technical data 3 1.2. Medium pressure 2. Product versions 5 Circuit functions Materials 4.2. Material specifications 5. Dimensions 6 5.2. Bürkert sub-base (9 x 26) interface 5.3. Bürkert sub-base (26 x 57) horizontal 5.4. Bürkert sub-base (26 x 57) interface 5.5. Threaded port version (UNF ¼"- 28) 5.6. Tube connector version 6. Device/Process connections 11 7. Ordering information 11 7.2. Bürkert product filter 7.3. Ordering chart Standard version Impulse version 7.4. Ordering chart accessories Manifolds Cable plug Type 2503 Fittings and hoses

3 | 15Visit product website  1. General technical data 1.1. General data Product properties Dimensions Detailed information can be found in chapter “5. Dimensions” on page 6 Material Body PEEK or PPS (PVDF on request) Seal FFKM, EPDM, FKM or FFKM HCR (High Chemical Resistance) Internal volume Bürkert sub-base (9 x 26): approx. 38 µl Bürkert sub-base (26 x 57) horizontal: approx. 93 µl Threaded version UNF ¼"- 28: approx. 59 µl Tube connector: approx. 68 µl Orifice Standard version DN 0.8 or DN 1.2 Impulse version DN 1.2 FFKM HCR version DN 1.2 Circuit function Detailed information can be found in chapter “3. Circuit functions” on page 5 Typical product service life 10 million switching cycles (acc. to laboratory duration tests) 1.) Performance data Pressure range Detailed information can be found in chapter “1.2. Medium pressure” on page 4 Switching noise 30 dB (A) (< 20 dB (A) on request 2.)) Switching time 3.) Opening: approx. 3 ms (Pressure build-up 0…10 %) Closing: approx. 3 ms (Pressure reduction 100…90 Electrical data Power supply 12 V DC, 24 V DC (other voltages on request) Duty cycle 4.) 100 % continuous operation Nominal power Standard version 1 W 5.) Impulse version 1.25 W 5.) (impulse length min. 500 ms) FFKM HCR version 1.25 W 5.) Voltage tolerance Standard version ± % (incl. residual ripple) Impulse version ± % (incl. residual ripple) FFKM HCR version ± % (incl. residual ripple) Medium data Operating medium Resistant to neutral and aggressive gases and liquids. For more detailed information, see the chapter “4.1. Bürkert resistApp” on page 5 Medium temperature Standard version FFKM: °C…+ °C (59 °F…122 °F) FKM: °C…+ °C (32 °F…122 °F) EPDM: °C…+ °C (32 °F…122 °F) Impulse version FFKM: °C…+ °C (59 °F…104 °F) FKM: °C…+ °C (32 °F…104 °F) EPDM: °C…+ °C (32 °F…104 °F) (Higher temperature range on request) FFKM HCR version FFKM HCR: + °C…+ °C (59 °F…122 °F) 6.) Viscosity Max. 21 mm2/s Process/Port connection & communication Electrical connection 7.) Plug with detent, pin spacing 2 mm, see data sheet Type 2503  Port connection Bürkert sub-base (9 x 26) Bürkert sub-base (26 x 57) horizontal Threaded version UNF ¼"- Tube connector version Approvals and Certificates Suitable for food industry FDA – on request, only with sealing material EPDM Oxygen application Oxygen suitability of materials in contact with fluid (BAM) – on request, only with sealing material FKM Degree of protection IP10 Suitable for drinking water KTW (W270) – on request, only with sealing material EPDM

4 | 15Visit product website  Environment and installation Installation As required, preferably with actuator upright Ambient temperature FFKM + °C…+ °C (59 °F…122 °F) FKM 0 °C…+ °C (32 °F…122 °F) EPDM 0 °C…+ °C (32 °F…122 °F) FFKM HCR + °C…+ °C (59 °F…122 °F) 1.) The service life depends on the medium, temperature, pressure, sealing material and individual operating conditions. 2.) May be higher with impulse version. < 20 dB(A) with optional soft-close electronics only possible in conjunction with standard valve. 3.) Measurement at 2 bar and + °C at the valve outlet acc. to DIN ISO 12238:2001 4.) Max. housing temperature must not exceed 110 °C. In continuous operation care must be taken to ensure sufficient heat dissipation (convection) at the metal surface of the valve. Overheating of the valve can lead to damage. 5.) No further power reduction possible 6.) Reduced shifting performance at 15 7.) Please order socket with flying leads separately (see “7.4. Ordering chart accessories” on page 13 Other suitable connectors are, for example W+P: Series 521 (socket 521S- 1; contact 521S- 00) or JST (socket PHR- 2; contact SPH- 002GW-P0.5S), version 102 01- x-S (x=L or F) or W+P Series 257 Part No. 257 002 1.2. Medium pressure Circuit function Orifice Pressure range under [bar] Max. differential pressure [mm] NC COM NO [bar] CF A 2/2-way solenoid valve Direct-acting Normally closed NC

1.2 Vac…3

1.2 (with boost electronics 4.)) Vac…7 1.2 (with seal material FFKM HCR) Vac…2 CF B 2/2-way solenoid valve Direct-acting Normally open NO 1.2 – CF P 2/2-way impulse solenoid valve Direct-acting NC CF S 3/2-way impulse solenoid valve Direct-acting Flow direction unrestricted NC NO CF T 3/2-way solenoid valve Direct-acting Flow direction optional Universal NC NO

1.2 Vac…2

1.2 (with boost electronics 4.)) Vac…7 1.) Connect technical vacuum (- 0.8 bar) to NC or NO. If vacuum is connected to (COM/OUT), significantly reduced flow must be expected. 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 case of continuous operation with higher vacuum, there is a risk of flow reduction. In case of doubt, please contact your Bürkert sales office. 4.) For information on the optional boost electronics see chapter “7.4. Ordering chart accessories” on page 13

5 | 15Visit product website  2. Product versions Bürkert sub-base (9 x 26) Bürkert sub-base (26 x 57) horizontal Threaded version (UNF ¼"- 28) Tube connector version 3. Circuit functions Circuit functions Description NC Circuit function A (CF A) 2/2-way solenoid valve Direct-acting Normally closed NO Circuit function B (CF B) 2/2-way solenoid valve Direct-acting Normally open NC Circuit function P (CF P) 2/2-way impulse solenoid valve Direct-acting NC NO Circuit function S (CF S) 3/2-way impulse solenoid valve Direct-acting Flow direction unrestricted NC NO Circuit function T (CF T) 3/2-way solenoid valve Direct-acting Flow direction optional Universal 4. Materials 4.1. Bürkert resistApp Bürkert resistApp – Chemical resistance chart You want to ensure the reliability and durability of the materials in your individual application case? Verify your combination of media and materials on our website or in our resistApp. Start chemical resistance check

6 | 15Visit product website  4.2. Material specifications No. Element Material

1 Cap LCP

2 Coil housing nickel-plated

3 Valve body PPS

4 Fluid housing (medium contact) PEEK or PPS (PVDF on request)

5 Sub-base seal (medium contact) FFKM, EPDM or FKM

6 Diaphragm (medium contact) FFKM, EPDM, FKM or FFKM HCR (High

Chemical Resistance) 5. Dimensions 5.1. Bürkert sub-base (9 x 26) Note: Dimensions in mm Including fastening screws M2 x 10 4.9 41.9 38.1 16.1 5.6 (48) 8.9 6.5 2.6 2.6 Ø 2.2

7 | 15Visit product website  5.2. Bürkert sub-base (9 x 26) interface Note: Dimensions in mm Preferred threaded connection 3/2-way connection max. Ø 1.5 max. Ø 1.5 max. Ø 1.8 max. Ø 1.5 M2 min. 7 2.6 2.6 M2 min. 7 2.6 2.6 M2 min. 7 M2 min. 7 9 max. Ø 1.8 max. Ø 1.5 2/2-way connection max. Ø 1.5 max. Ø 1.5 max. Ø 1.8 max. Ø 1.5 M2 min. 7 2.6 2.6 M2 min. 7 2.6 2.6 M2 min. 7 M2 min. 7 9 max. Ø 1.8 max. Ø 1.5 Further possible connection (diagonal) 3/2-way connection max. Ø 1.5 max. Ø 1.5 max. Ø 1.8 max. Ø 1.5 M2 min. 7 2.6 2.6 M2 min. 7 2.6 2.6 M2 min. 7 M2 min. 7 9 max. Ø 1.8 max. Ø 1.5 2/2-way connection max. Ø 1.5 max. Ø 1.5 max. Ø 1.8 max. Ø 1.5 M2 min. 7 2.6 2.6 M2 min. 7 2.6 2.6 M2 min. 7 M2 min. 7 9 max. Ø 1.8 max. Ø 1.5

8 | 15Visit product website  5.3. Bürkert sub-base (26 x 57) horizontal Note: Dimensions in mm Optional: Sub-base can be turned by 180° Including fastening screws M2 x 6 Ø 2.15 2.7 20.5 26.2 4.9 16.1 47.3 51.1 (57) 6.5 3.2 2.8 5.4. Bürkert sub-base (26 x 57) interface Note: Dimensions in mm 20.5 ( ! ) max. 1.5 M2 min. 3.5 2.7

9 | 15Visit product website  5.5. Threaded port version (UNF ¼"- 28) Note: Dimensions in mm 5.1 Ø 3.2 56.4 52.6 41.7 (5.8) 60° (52) 3 x 1/4-28 UNF FLAT BOTTOM 11 8.9

10 | 15Visit product website  5.6. Tube connector version Note: Dimensions in mm 16.1 Ø 3.2 44.8 5.7 3.1 (51) 6.8° 9.55 33.4 Ø 3.2 6.5 Ø 2.6 1.5 4.5

11 | 15Visit product website  6. Device/Process connections 6.1. Pin assignment Electrical control for impulse versions Impulse 500 ms 1 2 P 2/2-way Impulse NC (open) – + 1 NC (closed) + – S 3/2-way Impulse NC COM (open) – + NO COM (open) + – 7. Ordering information 7.1. Bürkert eShop Bürkert eShop – Easy ordering and quick delivery You want to find your desired Bürkert product or spare part quickly and order directly? Our online shop is available for you 24/7. Sign up and enjoy all the benefits. Order online now 7.2. Bürkert product filter Bürkert product filter – Get quickly to the right product You want to select products comfortably based on your technical requirements? Use the Bürkert product filter and find suitable articles for your application quickly and easily. Try out our product filter

12 | 15Visit product website  7.3. Ordering chart Standard version Note: Please order plug connector with lead or electronic separately (see “7.4. Ordering chart accessories” on page 13 Including mounting screws for the following port connections: Bürkert sub-base (9 x 26): M2x10-TORX T6-A2 Bürkert sub-base (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 Port connection Orifice QNn value air 2.) KV value water 1.) CV value water Voltage/ frequency Pressure range 3.) Max. pressure difference Body material Seal material Article no. [mm] [l/min] [m 3/h] [gpm] [V] [bar] [bar] CF A 2/2-way solenoid valve Direct-acting Normally closed NC Bürkert sub- base (9 x 26) 0.8 10.7 0.01 0.012 24 Vac…5 5 PEEK FFKM 299245  PPS FKM 299248  EPDM 299247  UNF ¼"- 28 10.7 0.01 0.012 24 Vac…5 5 PEEK FFKM 299246  Tube connector 10.7 0.01 0.012 24 Vac…5 5 PEEK FFKM 382088  EPDM 382643  Bürkert sub- base (26 x 57) horizontal 10.7 0.01 0.012 24 Vac…5 5 PPS EPDM 20069044  Bürkert sub- base (9 x 26) 1.2 28 0.026 0.03 24 Vac…3 3 PEEK FFKM 281506  PPS FKM 281936  EPDM 281934  UNF ¼"- 28 28

12 FKM 295793 

Bürkert sub- base (9 x 26) 28 0.026 0.03 24 Vac…2 2 PEEK FFKM HCR 20048280  UNF ¼”- 28 28 HCR 20075595  CF B 2/2-way solenoid valve Direct-acting Normally open NO Bürkert sub- base (9 x 26) 1.2 28 0.026 0.03 24 Vac…2 2 PEEK FFKM 281507  CF T 3/2-way solenoid valve Direct-acting Flow direction optional Universal NC NO Bürkert sub- base (9 x 26) PPS FKM 299252 

12 EPDM 299279 

24 299251  UNF ¼"- 28 10.7 0.01 0.012 24 0…3 5.) 5 PEEK FFKM 299250  Tube connector 10.7 0.01 0.012 24 0…3 5.) 5 PEEK FFKM 382082  EPDM 382644  Bürkert sub- base (26 x 57) horizontal 10.7 0.01 0.012 24 0…3 5.) 5 PPS FKM 20069046  EPDM 20069045  Bürkert sub- base (9 x 26) 1.2 28 0.026 0.03 12 Vac…2 2 PEEK FFKM 295322 

24 FFKM 276458 

PPS FKM 281937  EPDM 281935  UNF ¼"- 28 28 Bürkert sub- base (9 x 26) HCR 20075596  UNF ¼”- 28 28 HCR 20054962  1.) Measurement at 1 bar and + 20 °C at the valve inlet and free outlet 2.) Converted to standard conditions

13 | 15Visit product website  3.) Connect technical vacuum (- 0.8 bar) to NC or NO. If vacuum is connected to (COM/OUT), significantly reduced flow must be expected. 4.) KV value of the valve. The UNF connections have a diameter of 1.2 mm; in conjunction with conventional connection technology (10 cm hose each with ID= 1.6 mm), this results in practical values of KV= 0.015 m³/h; CV= 0.017 gpm; QNn= 21.8 l/min. 5.) Applies to pressure connection to COM. For pressure connection to NC or NO Vac…5 bar applies. Impulse version Circuit function Port connection Orifice QNn value air 2.) KV value water 1.) CV value water Voltage/ frequency Pressure range 3.) 4.) Max. pressure difference Body material Seal material Article no. [mm] [l/min] [m 3/h] [gpm] [V] [bar] [bar] CF P 2/2-way impulse solenoid valve Direct-acting NC Bürkert sub- base (9 x 26) 1.2 25 0.024 0.027 24 Vac…2 2 PPS FKM 355749 

24 PEEK FFKM 355744 

12 355750  UNF ¼"- 28 25 CF S 3/2-way impulse solenoid valve Direct-acting Flow direction unrestricted NC NO Bürkert sub- base (9 x 26) 1.2 28 0.026 0.03 24 Vac…2 2 PPS FKM 355756 

24 PEEK FFKM 355754 

12 20005293  UNF ¼"- 28 28 1.) Measurement at 1 bar and + 20 °C at the valve inlet and free outlet 2.) Converted to standard conditions 3.) Pressure data: Overpressure to atmospheric pressure 4.) Connect technical vacuum (- 0.8 bar) to NC or NO. If vacuum is connected to (COM/OUT), significantly reduced flow must be expected. 5.) KV value of the valve. The UNF connections have a diameter of 1.2 mm; in conjunction with conventional connection technology (10 cm hose each with ID= 1.6 mm), this results in practical values of KV= 0.015 m³/h; CV= 0.017 gpm; QNn= 21.8 l/min. 7.4. Ordering chart accessories Manifolds Note: Customised for connecting plates, on request. Cable plug Type 2503 Accessories Description Article no. Cable plug with 500 mm flying leads AWG 24 For further information please refer to data sheet Type 2503 689974  Cable plug 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 689998 

14 | 15Visit product website  Accessories Description Article no. Cable plug with 500 mm flying leads and Soft Close Elektronic for noise minimi- zation. For further information refer to the operating instructions for Type 2503 Soft- Close or see data sheet Type 2503 689999  The electronic accessory “Impulse” was specially developed for the impulse version of the solenoid valve Type 6724. With the help of the electronics, the impulse valve is activated by reversing the polarity of the voltage. The electron- ics automatically choose the correct polarity for the valve. This means that no polarity reversal logic needs to be provided in the control system. For further information refer to the operating instructions for Type 2503 Im- pulse or see data sheet Type 2503 366210  Fittings and hoses Accessories Description Article no. Fittings and hoses for UNF connections and hoses see type Type TVU003  . see data sheet TVU003

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