Resources

Short answer: A stub flange is a short polyethylene fitting with a raised collar that is fused onto the end of a poly pipe, so a loose metal backing ring can bolt it to a valve, pump or metal flange. … read more

Short answer: Table D and Table E are two flange classes in the Australian Standard AS 2129, each with its own outside diameter, bolt circle, bolt hole and bolt size for every nominal size. They matte … read more