Static Seals - Trelleborg Sealing Solutions - #9

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Text version of the page
O-Ring
■ Advantages
Compared with other sealing elements, the O-Ring has a wide range of advantages:
- Inexpensive, allows low cost solutions
- Simple, one-piece groove design reduces hardware and design costs
- Compact design allows smaller hardware
- Easy, foolproof installation reduces risk
- Applicable to a wide range of sealing problems, static, dynamic, single or double acting
- Wide compound choice for compatibility with most fluids
- Ex stock availability worldwide for easy maintenance and repair.
Standard size range for O-Rings
■ Description
O-Rings offer the designer an efficient and economical sealing element for a wide range of static or dynamic applications.
Inexpensive production methods and its ease of use have made the O-Ring the most widely used seal.
A wide choice of elastomer materials for both standard and special applications allow the O-Ring to be used to seal practically all liquid and gaseous media.
O-Rings are vulcanised in moulds and are characterised by their circular form with circular cross section. The dimensions of the O-Ring are defined by the inside diameter d1 and the cross section diameter d2.
Cross section diameters of approx. 0.35 to 40 mm and inside diameters up to 5,000 mm and more are available.
() ::
0
d1
Standard/Dimension range
O-Ring cross section d2 (mm)
Preferred metric dimensions
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 7.0 8.0 10.0 12.0
International standard ISO 3601/1 German standard DIN 3771/1
1.80 2.65 3.55 5.30 7.0
Swedish standard SMS 1586
1.6 2.4 3.0 5.7 8.4
French standard
1.9 2.7 3.6 5.33 6.99
Japanese standard JIS B 2401
1.9 2.4 3.1 3.5 5.7 8.4
American standard AS 568 B British standard BS 1806
1.78 2.62 3.53 5.33 7.0
American standard AS 568 B (Series 900)
1.02 1.42 1.63 1.83 1.98 2.08 2.20 2.46 2.95 3.00
Special versions for large diameters from
approx. 1,000 mm to 5,000 mm
5.0 5.4 7.0 7.7 9.2 10.0 12.0
Figure 1 O-Ring dimensioning
MM
Latest information available atwww.tss.trelleborg.com Edition April 2007
TRELLEBORG
SEALING SOLUTIONS
7

pageCatalog pdf di En 2012-06-22-01