PROCESSING TECHNOLOGY 41
documentation need not be changed, unless they include the standard’s date.” The five parts of the now valid O-Ring standard ISO
3601 are as follows:
ISO 3601-1: 2008. Revised - Inside diameters, cross-sections, tolerances and designation codes: u Dimensions are expressed in both metric and inch measurements.
u Class A is identical with AS568B. u Class B is similar to the tolerances of the previous ISO 3601-1: 2002 and includes an equation to calculate the tolerance for the O-Ring inside diameter.
u Range for O-Ring cross-section diameter tolerances from 0.8 mm to 8.4 mm ISO 3601-2: 2008
New - Housing dimensions for general applications: u Covers technology for measuring surface roughness of O-Ring housings.
u Design recommendations for O-Ring squeeze, elongation and compression as well as maximum groove fill.
u Equation for calculation of O-Ring cross-section reduction caused by the elongation of the O-Ring inner diameter.
ISO 3601-3: 2005. Partially revised - Quality acceptance criteria for O-Ring surfaces.
ISO 3601-4: 2008: New - Retaining ring specifications: u Covers spiral Back-up Rings, solid type (cut/uncut), concave type (cut/uncut).
u Gives tolerances for outer and inner diameters depending on rod or piston applications.
u Design recommendations but no size list for preferred housing dimensions.
ISO 3601-5:2002. Currently in revision – Suitability of elastomeric materials for industrial applications: u Will replace general information on material groups with detailed information of more practical use to design engineers
u Will comprise detailed material specifications for important material groups
Trelleborg Sealing Solutions has a high level of
expertise in specification of O-Rings and other sealing elements within a wide range of industrial, aerospace and automotive applications. Design engineers can contact one of more than 40
marketing companies worldwide for further information on this O-Ring standard or selecting the optimum sealing element for their specific application. u
For more information, visit
www.tss.trelleborg.com
Circle 41 or ✔ at
www.scientistlive.com/elab Y Eureka! ou’ve found the solution...
..to all your stainless steel hygiene equipment and laboratory furniture needs
▪ Quality ▪ Fast Delivery ▪ UK Engineered Custom Designs
F: +44(0)1603 418380 Circle 41B or ✔ at
www.scientistlive.com/elab
T: +44 (0)1603 788833
www.teknomek.co.uk
Circle 41A or ✔ at
www.scientistlive.com/elab eLab june
09.indd 1 07/05/2009 08:44:11 email:
mail@teknomek.co.uk
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44