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Fluid Isolation Valve Overview Slide

Fluid Isolation Valves

The fluid isolation valves from Kendrion have a large orifice and achieve high flow volumes. Due to the pressure balanced design the power consumption is very low.

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Fluid Isolation Valves

Product Information

Function

A fluid isolation solenoid valve features a diaphragm that strictly separates the valve drive from the process media. This enables applications requiring either absolute freedom from contamination or a high level of chemical resistance against aggressive media. With such valves only selected materials will get in direct contact with the process media. Thanks to the use of selected materials and strict media separation, the new Kuhnke fluid isolation solenoid valves from Kendrion offer maximum flexibility and can be used also for process media such as acids or alkalis, as well as special inks in the printing industry.

Design

In order to keep energy consumption as low as possible despite high flow volumes, Kendrion Kuhnke has developed a fluid isolation solenoid valve featuring a pressure balanced design, which generally keeps power consumption below 6 watts.

With its large nominal orifice of 3.5 mm (0.138 inch) the Kuhnke fluid isolation solenoid valve from Kendrion can be used for a wide range of applications involving high pressures of up to 8 bar (116 psi) and flow rates of up to 350 l/min (92.4 gpm). It is available as 3/2- or 2/2-way valve in normally closed or normally open position. On request it can also be designed as a 3/2-way valve to work as junction or mixer. Optionally this valve is available with manual operation and/or switch position indicator.

The default case material of the valve is PPSU. On special request it can also be made with other plastics suitable for injection molding. The seals are available either in NBR, FKM or EPDM (depending on the application). Externally either a flange or a push-in connection for 4 or 6 mm hoses with outer calibration can be selected. Depending on the application, even combinations of flange and push-in connections are possible – for example a 2/2-way in-line version with push-in connection. In combination with a connector according to industry standard EN 60529 the new valves conform to IP65 protection rating. The new fluid isolation solenoid valve from Kendrion in compact design is available for 12 V DC or 24 V DC operation. On request, other input voltages are available as well.

Features

  • Compact design
  • Use of different media possible
  • Low-noise version on request
  • Higher flows at low power consumption

Applications

  • Medical engineering
  • Analysis and laboratory equipment
  • Dental technology
  • Power engineering
  • Process engineering

General Technical Specifications

Technical Data  
Nominal voltage 24 V DC or 12 V DC
Power consumption ≤4,6 W (at 0 to 3.5 bar)
Pressure range -0,9 to 3.5 bar (up to 8 bar on request)
Orifice size approx. 3.5 mm
Kv-value max. 3,5 l/min
Materials in media contact Sealings: either EPDM, NBR or FKM; Housing: PPSU Materials listed according to FDA and UL (drinking water approval on request)
Protection classification IP 65 (with plug-in socket and occupied pneumatic connections or leads)
Pneumatic connections Flange or push-in connectors (either 4 mm or 6 mm)
Electrical connections Flat plug receptacles 6.3 x 0.8, industry standard fitting plug-in connector type B according to EN 60529 (not included in delivery) or leads
Functions 3/2 way NC/NO, 2/2 way NC/NO, 3/2 way multifunctional
Dimensions (h x w x d) 68 mm x 22 mm x 30 mm (flange version)
   

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