CHECK VALVE  FIG.287 Check valves are provided with casted marking according to requirements of PN-EN19 standard. The marking facilitates technical identification and contains : • Diameter nominal DN (mm), • Pressure nominal PN (bar), • Body and bonnet material marking, • Arrow indicating medium flow direction, • Manufacturer marking, • Heat number, • CE marking, for valves subjected 2014/68/UE directive. CE marking starts from DN SPECIFICATION • Material : Grey cast iron / nodular cast iron / bronze / Cast steel / Alloy steel / Cast stainless steel • Nominal pressure : 6, 10, 16, 25, 40, 63, 100, 160 Bar • Nominal diameter : DN15 – DN300 • Temperature range : -60…400°C • Working position : Any FEATURES • Closing tightness class D acc. to EN -12266-1 • Compact settlement • Environment-friendly • No maintenance • Face-to-face dimension according to EN 558-1 series 1 • Flanges drilled according to EN 1092-1 for type F, I, G, M • Flanges drilled according to EN 1092-2 for type A,C • Flanges drilled according to EN 1092-3 for type E APPLICATIONS  • Industry • Shipbuilding industry • Chemical industry • Heating • Refrigeration, air conditioning • Industrial water • Diathermic oil, • Glycol • Steam • Compressed air • Neutral fluids