304/316L Stainless Steel Flange Viewing Mirror Hexagonal Manhole Glass Viewing Mirror

Manhole flange as a key component of industrial containers and equipment, for personnel access, equipment repair and maintenance, as well as material inspection, etc. provides an important channel, manhole flange is usually round, the size of the flange is larger compared to the ordinary flange, which is in order to meet the personnel to be able to safely and conveniently through. Its structure is mainly composed of flange, cylinder section and sealing device. Flange as the basis of the connection, with sufficient strength and rigidity, the edge of the uniform distribution of bolt holes, used with the equipment body or pipeline for fastening connection, to ensure the overall sealing and stability. Cylinder section is vertically welded on the flange, which is equivalent to a small channel, its length depends on the wall thickness of the equipment and the actual needs, the internal space to ensure that the personnel can pass through smoothly, the general diameter of 400mm to 600mm or so is more common. Sealing device is the key to ensure that the media inside the equipment does not leak, the common sealing form of asbestos rubber gasket sealing, metal winding gasket sealing, etc., by tightening the bolts to make the gasket deformation of the pressure, to fill the flange and the equipment or the cover between the small gap, to achieve a good sealing effect.