STUB END FLANGE
The backup surface of a stub end consists of an opposite rotating backup flange. Further, when you add bolts, the bolts clamping action presses the rotating backup flange against the stub end’s back. This leads to the gasket surface of tube press against a gasket and then another gasket surface supplying joints such as standard flange joints. This seal is made by the gasket surface of the stub end alone whereas the flange just gives the clamping pressure to the joint.Stub ends are widely used for they are made of such raw materials which are suitable with the designed piping plant systems. Moreover, stub ends can be made using cheap raw materials as it is never in contact with the process fluid.
Types of Stub Ends Flange
The manufacturing process of stub ends flange involves of two ways. Type A and B Stub Ends are designed the same as that of forged fittings like elbows and flanges. Type C Stub Ends are created according to the desired pipe dimensions. There two standard lengths of stub ends which are MSS and ANSI. They are usually supplied with a standard weld bevel.
Type A Stub Ends Flange
Here the lap thickness is greater than the minimum thickness of the pipe wall. The outer corner of type “A” is radiused to adjust the Lap Joint Flanges as the inner corner is in square. However, the Lap face is usually machine serrated.
Type B Stub Ends Flange
These are used particularly with standard Slip-On flanges which act a Lap Joint Fanges. Even here, the lap thickness is greater than the minimum thickness of pipe wall. Anyhow, here the outer corner radius is small so this helps to adjust the slip-on flanges which are temporarily used as the backup flange. Also, the inner corner is square again. And a machine serrated lap face is present.
Type C Stub Ends Flange
Generally applicable for usage with standard lap joint flanges and slip on flanges, the lap of a type “C” is flared above which leaves behind an edge which is round in shape at the inner lap diameter. However, you can turn this into square as and when needed. This type “C” again has short outer fillet radius which helps in adjusting any backup flange. Strangely enough, the lap face in type “C” is not machined but is smooth enough.
Type “CS” Stub Ends Flange Much similar to type “C”, CS Stub ends flange has a lap face with concentric serrations that are supplemented during the manufacturing or making process.
- Refineries and Fertilizers
- Chemical and Petrochemical
- Oil & Gas and Paper Pulp
- Power Plant and Nuclear Power
- Breweries and Cement industries
- Mining and Construction
- Sugar and Oil Mills and Shipbuilding and Steel Plant
- Offshore and Defense and Ports and Railways
- Government Organizations and Engineering companies.
Hydro Flange has employees with years of experience in manufacturing stub end flange. Further, all our products go through durability, precision and accuracy tests to verify and test if each and every output stands up to the mark. We supply a standard weld bevel along with the stub ends and are in various shapes such as flanged, squared, and threaded with Victaulic ends. Amazing price rates are available for our stub ends in the market.