DN500 Flanged Manlid ASSY

DN500 Flanged Manlid ASSY is fixed at 20 points, and the sealing surface is in the form of a tenon groove surface (TG). Processing of manhole cover forgings, capable of welding various sizes of valve installation flanges. The manhole neck ring is formed by welding a lining ring and a straight cylinder. The manhole cover assembly is evenly distributed with two handles for easy handling, and the lifting ring screw M16 is used to lift the manhole cover assembly.
The height of the neck ring straight tube is customized according to customer needs, and different heights are suitable for different tank radius.
Standard fastener package and PTFE seal.