JIS B2220 slip on hub flange is a method of connecting pipes,valves,pumps and other equipment to form a piping system.The JIS B2220 slip on hub flange is usually manufactured in all the different materials like stainless steel,carbon steel,alloy steel,cast iron,aluminium,brass,bronze,plastic etc.but the most used material is forged carbon steel and have machined surfaces. Commonly,the JIS B2220 slip on hub flange can be fillet welded with the pipe on the two sides.It can make sure the joint quality with the pipe. In addition to the JIS B2220 slip on hub flange,we also manufacture JIS B2220 flanges are: JIS B2220 slip on plate flange,JIS B2220 blind flange,JIS B2220 weld neck flange.