EVAC AG vacuum and process technology

Wednesday, 08 February, 2012 | Supplied by: John Morris Scientific Pty Ltd


John Morris Scientific has been appointed as the distributor for EVAC AG within Australia, New Zealand and the islands of the South West Pacific. EVAC AG is a provider of quick-release connections for high-demand vacuum and process technology applications including ultrahigh-vacuum and high-pressure hydraulics. They offer a wide range of standard and custom-made chain clamps, flanges, fittings, seals and bellows:

KF Systems are frequently used for rough to high vacuum, up to 10E-9 mbar (100 nPa), or peak pressure up to 20 bar (2 MPa), depending on the flange diameter, seal material and geometry of the centre ring. While inner centre rings are used for vacuum applications, outer centre rings are used for overpressure. Combinations of both are available, where both conditions are likely to occur.

KF connections are available in sizes NW10/16 up to NW50 according to ISO. An additional size, KF NW63, is also available with appropriate seals (elastomer, aluminium) and chain clamps.

CeFiX Systems are the next generation of the Conflat (CF) system. They allow customers to create a EUHV leakproof connection within seconds. This connection (<10E-11 mbar, <1 nPa) can carry an overpressure of up to 300 bar (using especially certified chain clamps with TÜV approval). This is achieved by using hard nickel seals, impossible to penetrate even by a CF knife edge but easily compressed using the gear-type force-multiplying mechanism of CeFiX chain clamps. This technology requires only 50% of the CF compression force at seal surface in order to achieve gas-tight intermetallic diffusion bonds.

With a particle-free area-pressing mechanism, seals can be re-used up to 10 times due to the fact that smooth overlapping areas do not exhibit the leaking deficiencies of the deep CF groove imprints. Another advantage of the wide overlapping area and 200 to 400 µm cross-section is its extensive thermocycling capability with a sheer range of -271 to +450°C, usually breaking the fragile CF knife edge just after one cycle.

Tapered Systems allows customers to quickly create a leakproof connection by tightening 1-2 screws (elastomer seals = 1 screw and aluminium edge seals = 2 screws in order to get a better force distribution). They are available in standard sizes from NW80 up to NW250, with larger sizes up to NW700 available on request. Flanges are available in stainless steel as well as in glass (Duran, quartz).

The company’s sTeRIc-clamp systems provide a gap-free connection for customers who need to meet cleaning in place (CIP) requirements. The seamless transition in between flanges, as well as the special wave design of bellows, allows for in-situ brush cleaning of the system without opening and inserting bacteria or other contaminants from the outside. Clamp connections are available in sizes NW8 up to NW80.

Online: www.johnmorris.com.au
Phone: 02 9496 4200
Related Products

Waters Oasis WAX/GCB and GCB/WAX for PFAS Analysis cartridges

The dual-phase cartridges are designed to simplify and expedite the process of preparing complex...

Hylec Controls packaging materials testing machinery

From tensile strength testers to impact testers, Hylec Controls' comprehensive range of...

Beckman Coulter Life Sciences CytoFLEX nano flow cytometer

The CytoFLEX nano flow cytometer, from Beckman Coulter Life Sciences, is described by the company...


  • All content Copyright © 2024 Westwick-Farrow Pty Ltd