Stenso - Hovedkatalog 2019

O-Ringmaterials - main types Due to the wide variety of synthetic elastomers that are available in the market, O-rings can be manufactured to withstand tempera- ture from -60 C up to +280 C and a range of fluids environments. Obviously, all the combinations of material are not acting in the sa- me way. Therefore we include a table below that provides an overview of the standard materials and the proper diameter data with reference to relevant applications. It is not unusual to develop non-standard-materials to cater for the influence of some factors that might influence conditions of use. Wemust draw your attention to the fact, that most materials of construction have been certified by i.e. Material Code Accofluor Hardness Shore A Temperature °C Resistant to / Application use Specification as per ASTM 2000 D N55 55 + 5 -30 - +130 Standard material in pneumatics and hydraulics N60 60 + 5 -30 - +130 resistant to mineral oils, native and animal origin oils, N70 70 + 5 -30 - +130 silicone oils and greases, petrol, natural gas, 2BG715 B34 EO14 EO34 EF11 EF21 F16 EA14 N80 80 + 5 -25 - +130 water up to 70° C, N85 85 + 5 -25 - +130 flame resistant fluids 7BG915 B14 EO14 EO34 EF11 EF21 EA14 N90 90 + 5 -25 - +130 - HFA (oil in water emulsion ) - HFB (water in oil emulsion) - HFC (aqueous solutions of polyalkylene glycol) NB7 75 + 5 -30 - +130 as above / low swelling in fuels 2BG715 B14Z 1 Z - in Benzine (48h à 23 °C) V = 2 % 1 NA6 60 + 5 -30 - +130 For drinking water and food stuffs NA7 70 + 5 -30 - +130 2BG715 B14 EO14 EO34 EA14 NF7 70 + 5 -42 - +130 optimal antifreezing quality 2BG715 B14 EO14 EO34 F17 EA14 NP7 70 + 5 -30 - +130 Low compression strain (peroxide cross-linked) 3BG715 B14 EO14 EO34 Z 1 r E60 60 + 5 -50 - +150 Outstanding resistance to atmospheric conditions 2DA615 A26 B36 B32 E70 70 + 5 -50 - +150 effective substances, hot water, steam up to 150 C, 3DA715 A26 B36 C32 F19 EA14 good resistance to ozone, phosphate ester bases, and brake fluids. Not resistant to mineral oil products C60 60 + 5 -30 - +120 Outstanding longterm resistance to atmospheric 2BC620 A14 EO14 EO34 F17 C70 70 + 5 -25 - +120 conditions even effective factors in combination 2BC720 A14 EO14 EO34 F17 with saline-water and UV rays. Good restistance to chemicals and freezing mixtures. S50 50 + 5 -60 - +220 Normally used for static seals, outstanding resistance behaviour even up to high temperature and in hot dry S60 60 + 5 -60 - +220 air, in combination with ozone. S70 70 + 5 -50 - +220 7GE707 A19 B37 EO16 EO36 F19 EA14 F60 60 + 5 -30 - +240 For static and dynamic sealing in combination with aliphatic and F75 75 + 5 -25 - +240 2HK715 A1-10 B38 EF31 EO78 F80 80 + 5 -25 - +240 an ozone itself at hight temperatures. AF-1012 52 + 2 -60 - +200 Pure PTFE outstanding chemical restistance / Applications in fluid, chemical and medical industry Shore D Many more material combinations are available for special requirements 207 O-Ring