Detail

 OETIKER Stepless Ear Clamps - OETIKER Stainless Steel Stepless Ear Clamp

 

Material
117 Galvanized or zinc-plated steel band
167 Stainless Steel, Material no. 1.4301/UNS S30400
Optional alternative materials

Corrosion resistance according to DIN EN ISO 9227
117 Zinc-plated steel band ≥ 96 h
117 Galvanized steel band ≥ 144 h
167 ≥ 1000 h

Series 117
Size range width x thickness
11.9 – 17.7 mm 7.0 x 0.6 mm
Standard Series 167
Size range width x thickness
6.5 – 11.8 mm 5.0 x 0.5 mm
11.9 – 120.5 mm 7.0 x 0.6 mm

 

Heavy Duty Series 167
Size range width x thickness
24.5 – 120.5 mm 10.0 x 0.8 mm
62.0 – 120.5 mm 10.0 x 1.0 mm

 

Material thickness
StepLess® Ear Clamps are produced in nominal widths and thicknesses. The selected material dimensions for a specific application are based on the stress required to obtain an adequate seal 
or load.
Clamp ear (closing element)
Using tools designed or endorsed by Oetiker, the clamp is closed 
by drawing together the lower radii of the “ear”. The maximum 
diameter reduction is proportionate to the open “ear” width (s).
The theoretical maximum reduction in diameter is given by the 
formula:
Tongue-in-groove design
Interlock
Ear width (s)
Max. diameter reduction = Ear width (s)
π