Weld neck flange – Piping fitting
Weld neck flange – Piping fitting
What is weld neck flange?
The weld neck flange is a whole itself, and the butt welding method is adopted to connect with the pipeline. The main welding method is to weld the butt welding nozzle of the flange together with the pipeline or pipe fittings. The welding method is BW butt welding.
The appearance of weld neck flange is similar to a flat flange + a butt welding horn, but the whole part is a whole, usually also called WN flange, according to the full English name is composed of the first two capital letters. Weld neck flange is widely used in industry, generally used in medium and high pressure pipelines and equipment, is a widely used flange at present.
Application of weld neck flange:
Weld neck flange is used for pipeline and equipment, instrumentation, valves, pumps and other devices, etc.) on the flange, weld neck flange appearance can see butt welding mouth location intensity is high, the sealing performance is strong, can be used in high pressure pipe or equipment, such as high pressure such as chemical petroleum power class position, such as high pressure, high temperature, flammable, explosive, toxic, harmful and toxic media competence.
Pressure range:
European Monetary System: PN2.5Bar、PN6Bar、PN10Bar、PN16Bar、PN25Bar、PN40Bar、PN63Bar、PN100Bar、PN150Bar、PN250Bar、PN320Bar、PN400Bar.
The American System: 150LB(PN20Bar)、300LB(PN50Bar)、600LB(PN110Bar)、900LB(PN150Bar)、1500LB(PN260Bar)、2500LB(PN420Bar).
manufacturing standard:
HG/T20592-2009、HG/T20615-2009、SH/T3406-2013、GB/T9115-2010、JB/T82-2015、ASME B16.5、ASME B16.47、ISO 7005-1-2011、BS 4504-3.1、DIN EN 1092-1-2008.
