Stenso - Hovedkatalog 2019

The wiper/scraper series AF-480 has been used for many years in hydraulic cylinders. It is meant for particularly robust applications like civil engineering and construction ma- chinery, where high degree of dust attack is encountered. The wiper can be used in divided and undi- vided grooves (rod diameter over 30 mm fo rundivided grooves). For use in an undivided groove, the wiper ring must carefully bent to a kidney shape. The ring is then further prised apart through a 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. Materials Overview: Wiper Ring 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 norm). Standard MOC for hydraulics is NBR (acrylonitrile butadiene rubber) with 70 Shore A, which guarantees particularly good resistance to hydraulic fluids. Wiper Ring (PartA) The wiper/scraper possesses a sturdy profile with a wiper lip protruding on the air si- de. There exists a radie on the outermost circumference in order to be able to fit O- ring. Wiper/scraper rings are manufactured from specially modified PTFE materials. The compound AF-5640 (PTFE bronze) is standard material of construction (MOC) that is used in hydraulics applications. This material is particularly superior in respect of very high abrasion resistance, extrusion resistant, very good shearing characteris- tics and very good thermal and chemical resistance. AF-480 176 Wiper AF-1012: Virgin PTFE - outstanding chemical resistance - used in chemical, foodindustry and pharmaceutical industry with light mechanical stress. AF-1022: 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. 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