Stenso - Hovedkatalog 2019

Dynamic Slide Ring(PartA) Dynamic seal type with a cross-section as it is rectangular. The outer corners have been provided with a chamfer to simplify assembly and withstand extrusion in a better way. Notches present on both axial sides of the ring make it possible for the seal to be activated by internal hydraulic pressure and is most important while changing pressure from side to side. The slide ring is manufactured from specially modified PTFE materials. Compound 5640 is the standard material of construction (MOC) that is used in hydraulics appli- cations. This material is particularly superior in respect of very high abrasion resistance, inherent stability, very good shearing characteristics and very good thermal Piston seals series AF-511 has been success- fully used for many years in hydraulic cylin- ders. The seal can be assembled in single or multiple piece pistons. For use in an undivided groove, profile ring must be carefully pried apart and subsequently calibrated in the cylinder bore. 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 standard). Standard MOC for hydraulics applications is NBR, which guarantees particularly good resistance to hydraulic fluids. For use with O-rings with a hardness of 70 Shore-A are pre- ferred. Dynamic slide ring Materials Overview: O-Rings 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: Silicone Rubbers C: Chloroprene Rubbers. 60 Piston Seal AF-511 Materials Overview: 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.