ULTRA HIGH PURITY & ULTRA HIGH VACUUM SEALS
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ULTRA HIGH PURITY & ULTRA HIGH VACUUM SEALS Advanced metal sealing solutions for critical UHP/UHV & cryogenic applications

Today's sealing requirements for Ultra-High Purity and ULtra-Hic • Ultra-low Leak Rates (< 1x10-13 atm.cm3.s-1 He) • Low Outgassing • Cryogenic Temperatures(< 1.8° K) • Long Life Expectancy • Chemical Compatibility • ALuminum FLanges Through extensive research, Technetics Group, in conjuction wi of high performance metaL seaLs to soLve these demanding app Vacuum are more demanding than ever before: • Odd Shapes & Sizes • High Temperature Bake Out • Radiation Resistance • Remote HandLing CapabiLity • Quartz & Ceramic Flanges • Reduced Load the French Atomic Energy Commission, has deveLoped a...

The sealing principle of the HELICOFLEX® family of seals is based upon the plastic deformation of a jacket that has greater ductility than the flange materials. This occurs between the sealing face of a flange and an elastic core composed of a close-wound helical spring. The spring is selected to have a specific compression resistance. During compression, the resulting specific pressure forces the jacket to yield and ensures positive contact with the flange sealing faces. Each coil of the helical spring acts independently and allows the seal to conform to irregularities on the flange...

SEAL DESIGN INFORMATION Seal Aluminum Cross Section in Helium Sealing Y2 Flange Maximum Temp Other materials are available on request: Annealed Nickel, Stainless Steel, Tantalum, etc. Note: Minimum temperature is 1.8K/-272°C. Maximum temperatures shown in the tables only relate to the characteristics of the seal and are to be checked for every type of fluid. In specific applications, the HELICOFLEX® DELTA can be used with a seating load as low as 80 N/mm (450 lb/in). 90, rue de la Roche du Geai france@technetics.com 42029 Saint Etienne cedex 1 FRANCE

HELICOFLEX® DELTA A SEAL JACKET SEAL GROOVE DESIGN INFORMATION SHAPED SEALS Groove Design: Contact our engineering staff for assistance in designing non-circular grooves. Groove Finish: Most UHP/UHV applications will require a finish of <16 RMS (<0.4 Ra pm). All machining & polishing marks must follow seal circumference. Min. Seal Radius: The minimum seal bending radius is six times the seal cross section (CS). Seating Load: The load (Y2) to seat the seal is approximately 30% higher due to a slightly stiffer spring design. 90, rue de la Roche du Geai CS 52913 42029 Saint Etienne cedex 1...

COMPRESSION AND DECOMPRESSION CYCLE The compression and decompression cycle of the HELICOFLEX® seal is characterized by gradual flattening of the compression curve.The decompression curve is distinct from the compression curve as the result of a hysteresis phenomenon to which is added a permanent dual deformation (spring deformation and lining creep). DEFINITION OF TERMS Please refer to page 3. *Please refer to page 3. IN ULTRA HIGH VACUUM APPLICATIONS The sealing performance is very dependant on the surface finish of the flanges. It is important to meet the surface finish requirements...

HELICOFLEX® SEALS FOR CF FLANGE UPGRADE HELICOFLEX® seals can upgrade the performance of your CF flange - even with damaged knife edges. GROOVE DESIGN INFORMATION Compression e2 in Cross Section Cross Section Compression C.S. C.S. e2 mm mm in Seal Dimensions Knife Edge Diameter Cross Section Cross Section Compression C.S. C.S. e2 mm mm in Knife Edge Diameter Designed for ISO 3669 compatible CF Flanges. Recommended surface finish in seal contact area: 32 - 63 microinches (0.8 - 1.6 micrometers) lathe turned/circular lay. Must be free of dings and scratches. Note: Flange dimensions,...

QDS CLASS 150 Material: • Aluminum • Non-magnetic side-plates • Non-magnetic stainless steel screws Technical Data: • Clamping load: 150 N/mm (860 lb/in) • Temperature: 200°C (392°F) max. CLAMP DIMENSIONS 90, rue de la Roche du Geai france@technetics.com 42029 Saint Etienne cedex 1 FRANCE

Example reference for flange part number: 150 KF 40 ND 25 S: 2. Name of the conical flange: KF 3. Outside diameter of the flange: 40 5. Length of the flange: Short (25mm) or Long (50mm) 6. Blind flanges are described by the flange reference preceded by a T. Example: T 150 KF 40. Compatible with class 150 and class 300 QDS clamps for ISO sizes up to ND 50. Consult our enginering staff for larger sizes. Standard material Z2CN18.10 (304 L) SEAL DIMENSIONS - ALUMINUM JACKET Other jacket materials available upon request. 90, rue de la Roche du Geai CS 52913 42029 Saint Etienne cedex 1 FRANCE...

BELFAB® EDGE-WELDED METAL BELLOWS Technetics Group is a world leader in the design, production, and application of high precision sealing products incorporating edge-welded metal bellows. As a forerunner in the development of this technology, we continually work to advance the state of the art by engineering unique design solutions that solve critical needs within complex mechanical systems. We also offer contract assembly services including design, fabrication, welding, upper-level assembly, testing, and packaging. A certified Class 100/ Class 1000/ Class 10000 clean room assembly...

EXPERIENCE • Over 50 years of Bellows Design Knowledge • Over 500,000 Bellows Produced • Key/Preferred Supplier to Leading Equipment OEM's and End Users • T rusted Source for Direct Aftermarket QUALITY • AS9100C/ISO 9001 Certified • NADCAP Certified Process (Welding, Heat Treat) • Award-Winning Quality Programs • Six-Sigma Focus TESTING/RELIABILITY ENGINEERING • Life Cycle (at Pressure, Temperature) • Load/Force • Mean Effective Area • Metallurgical (Full Lab Onsite) • MST (Mass Spectrometer Testing) Leak Detection • Pressure (Burst, Impulse) • Shock • Spring Rate • Vibration (Random,...

ASIA Blk 203, #05-52 Woodlands Avenue 9 Woodlands Spectrum 2, 738956 Singapore Phone: +65 6759 2335 Fax: +65 6759 7319 No. 10 Xiangjie Road, SND Jiangsu Province Suzhou, 215129 P.R. China Phone: +86-0512-62921000 FRANCE 90, rue de la Roche du Geai CS 52913 42029 Saint Etienne cedex 1 FRANCE Phone: +33 (0) 4 77 43 51 00 Fax: +33 (0) 4 77 43 51 51 49 Avenue Charles de Gaulle Z.I. Survaure 42607 Montbrison cedex FRANCE Phone: +33 (0) 4 77 96 79 80 UK Acan Way, Coventry Road Narborough, Leicester LE19 2FT UK Phone: +44 (0) 1162 727411 Fax: +44 (0) 1162 727412 USA 2791 The Boulevard Columbia, SC...