Temperature range: -55°C up to 200°C (refer to remarks in following pages) Max. working press.: 250 to 800 bar (depending on size) Sizes: 6mm up to 42mm Issued at Hamburg on 2021-07-23 This Certificate is valid [...] range1 The couplings are type approved for the following nominal pressures PN. Series Tube OD mm PN bar L - series 6, 8 and 10 500 12, 15 and 18 400 22, 28, 35 and 42 250 S - series 6, 8 and 10 800 12, 14