Wafer butterfly valves TTV for closing or setting networks of gas. Valves with NF ROB-GAZ certification by Certigaz.. Ductile iron body EN GJS-500-7, stainless steel disc up to DN100 and NBR Gas seat. Between flanges PN10, PN16 or Class 150 according to the DN. Compatible with explosive atmosphere, ATEX Zone 1&21 and Zone 2&22 on request. • Manufacturer certified ISO 9001:2015 • DIRECTIVE 2014/68/EU : CE N° 0038 Risk Category III module H • Certificate 3.1 on request • Pressure tests according to EN 12266-1 , rate A • Between PN10/16 flanges according to EN 1092-1 • ISO 5211 mounting pad • Length according to : o ISO 5752 short series 20 o EN 558 series 20 (NF 29305) o BS 5155 series 4 o DIN 3202 part 3, series K1 o API 609 Table 1 up to DN600 o ASME B16.10 Table 8 column 3
