Stenso - Hovedkatalog 2019

The AF-411 rod seal has been used for many years in hydraulic cylinders. It can be used for unilateral or variable pressure application on the rod. The seal can be mounted in divided and undi- vided grooves (from ø 30 mm onwards). For use in an undivided groove, the profile ring must be carefully bent to a kidney shape. The ring is then further stretched apart through the chamfered piston rod. Materials Overview: O-Ring N: Acrylonitrile-Butadiene-Rubber - Used in general machine construction, hydrau- lics, 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 to mineral based and synthetic pressure fluids, aliphatic, aromatic and chlorated hydrocarbons, phosphate-ester based poorly inflammable fluids. E: Ethylene Propylene Diene Rubbers - Used in armature and pump industry. Resis- tant to hot water, steam, phosphate-ester based poorly inflammable fluids but is not resistant tomineral oils! S: Silicon Rubbers. C: Chloroprene Rubbers. 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 per AS 568 A (American standards). Standard MOC for hydraulics applications is NBR (Acrylonitrile Rubber) which guarantees particularly good resistance to hydraulic fluids. For use with profile gaskets O-rings with hardness of 70 ShoreAare preferred. Slide Ring (PartA) Slide ring section is rectangular and is provided with a chamfer on the dynamic side so as to simplify mounting.Slide rings aremanufactured from specially modified PTFE materials. Compound 5640 is the standard material of construction (MOC) that is used in hydraulics applications. This material is particularly superior in respect of very high abrasion resistance, inherent stability, very good shearing characteristics and very good thermal and chemical resistance. 131 B A AF-411 Double Acting Rod Seal Butadiene Materials Overview: AF-1012: Virgin PTFE - outstanding chemical resistance - used in chemical, foodindustry and pharmaceutical industry with light mechanical stress. AF-1022: PTFE with additive - Very good chemical resistance, outstanding shear characteristics, special purpose and intermediate stress applications. 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-5640: PTFE with Bronze/additive - high abrasion resistance and inherent stability, very good shear characteristics, good chemical resistance, used in intermediate to high stress hydraulics application. AF-1111: PTFE with Econol - very high abrasion resistance and inherent stability, used in hydraulics and abrasive pressure fluid applications. AF-8172: PUR - very high abrasion resistance and inherent stability, used primarily in intermediate stress hydraulics applications.