Dimensions of ISO 2531 ductile cast iron pipe fitting flange sockets

Specification: DN50-DN2000(2"-80"), available with PN10, PN16, PN25 and PN40 flanges    

Ductile Iron Flange Fittings Standard: ISO2531, ISO4179, ISO8179, BS EN 545, BS EN598, BS4772, ISO7005-2, EN1092-2:1997, DIN2501, GBT13295    

Flange: PN10, PN16 or PN25 drilling in accordance with ISO 7005-2/EN 1092-2.    

Fluid Temperature: 0°C-50°C， excluding frost.    

Pipe ends: Spigot, socket or flanges.    

Internal coating: Cement mortar lining comply with ISO4179 or bitumen painting (Ave. min.70 micron) or Fusion Bonded Epoxy Coating    

External coating: Sprayed metallic zinc coating (min.150g/m²) according to ISO8179 + bitumen painting (min.70 micron) or epoxy powder coating or epoxy painting or according to customer’s requirements.    

Types: Dismantling Joint, Universal Flange Adaptor, Universal Coupling, Ductile Iron Loose Flange Joint, DI Pipe Fitting, Saddle for PVC Pipe, Repair Clamp, Qucick Flange Adaptor, Gibault Joint, Restrained Flange Adaptor, Restrained Coupling, Valve, etc.    

Application: Municipal Use, Waterworks Pipelines, Piping Fittings, Water Engineering, Potable Water Use, Irrigation Use, Water Supply Project Use, Water Treatment Plants Use, Pumping Stations, Water Utility Sectors, Water-Supply Pressure Pipeline, Potable Water Pumping Station, Stormwater Lines, Fire Water Pumping Station, Fresh Water Pumping Station, ect.    

Test: In accordance with ISO 2531 / EN 545 / EN598 and 100% water pressure test.