Stainless Steel Flanges

This is similar to a slip on flange in outline but bore is threaded, thus enabling assembly without welding. This obviously limits its application to relatively low pressure piping systems. The flange may
be welded around the joint after method
of increasing its applications.

This is designed to be joined to a piping system by butt welding, It is relatively expensive because of its long neck, but is preferred for high stresses to the pipe, reducing stress applications. The neck, or hub, transmits stress concentration at the base of the flange. The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important re- inforcement of the flange. The bore of the flange matches the bore of the pipe, reducing turbulence and erosion.

The Flange is slipped over the pipe and then welded both inside and outside to provide sufficient strength and prevent leakage. This flange is used in preference to weld necks by many users because of its lower cost and the fact that less accuracy is required while cutting pipe to length.

This is slmilar to a slip-on flanges in outline, but the bore is counter-bored to accept pipe. The diameter of the remaining bore is the same as the inside diameter of the pipe. The flange ls attached to the pipe by a fillet weld around the hub of the flange. An optional interval weld may be applied ln high stress applications. its biggest use is in high pressure systems such as hydraulic
and steam line

This is flange without a bore and it is used to shut off a piping system or vessel opening. It also permits easy access to vessel or piping system for inspection purpose,Blind flanges can be supplied with or without hubs at the manufacturers option.

This is usually used with a pressed collar or stub end and is placed behind the collar or stub end. lt is not weld and thus allows for easy alignment. Also permits use of other materials for the flange is not in direct contact with the liquid.