Safety valves according to API standard type 526 - Leser.ru

Accessories and OptionsSoft seal selectionSoft seal selectionAbbrevationASTM 1418Trade name(Designation)Codeletter1)OptionCodeTminTmax[°C] [°F] [°C] [°F]Application 2)O-ringCR Neoprene ® K J21 -40 -40 100 212Parafin oil, silicone oil and grease, water andwaterbased solvents, refrigerants, ozoneNBRBuna-N ®(Nitrile-Butadiene)N J30 -25 -13 100 212 Hydraulic oil, vegetable and animal grease and oilEPDMBuna-EP ®(Ethylene-Propylene-Dine)D J22 -45 -49 150 302Hot water and superheated steam up to 150 °C,302 °F, some organic and inorganic acids,silicone oil and grease, FDA compliantFKMViton ®(Fluorocarbon)L J23 -20 -4 180 356High temperature service (no superheated steam),mineral oil and grease, silicone oil and grease,vegetable and animal grease and oil, ozone,FDA compliant compound available on requestFFKMKalrez ®(Perfluor)Sealing plate (Special design, Option code S07)SPPCTFEPTFEVESPEL SP-1 ®(Polyimide)KEL-F ®(Polychlorotrifluoroethylene)Teflon ®(Polytetrafluoroethylene)Other than listedC J20 0 32 250 482TGAXJ49+ S07J48+ S07J44+ S07-270 -454 300 572-240 -400 204 400-184 -300 150 302 Nearly all chemicalsFor other materials please contact yourlocal representative or sales@leser.com1)The code letters will be stamped on the disc (Item 1).2)Pressure and temperature service must be considered in any case.Chemical resistance information is supplied by the O-ring manufacturer. LESER can not take any warranty.Nearly all chemicals, standard compound isKalrez ® 6375 with steam resistance,FDA compliant compound available on requestHigh temperature and high pressure applications(no steam), for chemical resistance refer tomanufacturers guideCryogenic and refrigeration applications,flammable media applications, (e.g. gaseousoxygen) up to 50 bar, 725 psig at 60 °C, 140 °FOptions99/10