Stenso - Hovedkatalog 2019

AF-423 can be assembled in divided and undivided grooves: divided < 20 mm, closed > 20 mm. 277 Swivel seal (PartA) Swivel seal cross section has been specially designed taking into account the turn- ing action. The dynamic side is provided with a small chamfer to simplify assembly. The circumventing / surrounding groove on the dynamic side yields a high specific surface pressure. The radius on the inner diameter ensures a central and secure fit for the pre-stressing element. The expanded frictional area between O-ring and the profile ring also curtails relative movement with respect to each other. Depend- ing on the section of the seal, there may be one or two grooves incorporated on the dynamic side. The response behaviour of the pre-stressing element is improved by providing for grooves on the lateral plane faces as a standard feature. O-ring (Part B) O-rings are standard sealing elements with circular cross section. Those used in the present application conform to the series of dimensions as perAS 568A(Amer- ican norms). Standard MOC for hydraulics applications is NBR, which guarantees particularly good restistance to hydraulic fluids. For use with profile gaskets O-rings with hardness of 70 ShoreAare preferred. , Material overview: O-Rings N: Acrylnitrile-Butadiene-Rubber - Used in general machine constructions, hy- draulics, pneumatics. Resistant to mineral oil based pressure fluids, HFA, HFB and HFC fluids and water. F: Fluorine-containing Rubbers - Used at high temperatures and aggressive sur- rounding media, resistant tomineral based and synthetic pressure fluids, aliphatic, aromatic and chlorated hydrocarbons, phosphate-ester based poorly inflammable fluids. E: Ethylene-Propylene-Diene Rubbers - Used in valve and pump industry. Resis- tant to hot water, steam, phosphate-ester based poorly inflammable fluids , but is not resistant tomineral oils. S: Silicone-Rubbers C: Chloroprene-Rubbers AF-423 Swivel seal rod Material overview: Swivel seal AF-4115: PTFE with Glass fibre/lubricant - high abrasion resistance and inherent stability, good chemical resistance, used in various areas of industry and intermediatestress hydraulic applications. AF-2426: PTFE with Carbon: good abrasion resistance and inherent stability, good chemical resistance, used in water and water-oil emulsions with intermediate stress. Also designed for dry runs. AF-2413: PTFE with Carbon Fibre: very good abrasion resistance and inherent stability. Used in hydraulics, also intended for dry runs. AF-1111: PTFE with Econol - very high abrasion resistance and inherent stability, used in hydraulics and abrasive pressure fluid applications. AF-7710: PEHD 1000 - very high abrasion resistance and inherent stability, has a strong lip, with very good scraper effect. Has a limit in temperature maximum 80 C