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Definition and types of Flanges

Release Date:[8/1/2016]    Hit Count:[]

A flange is an external or internal ridge, or rim (lip), for strength, as the flange of an iron beam such as an I-beam or a T-beam; or for attachment to another object, as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera; or for a flange of a rail car or tram wheel.

There are the most common flange types:

1.Welding Neck flange.
Welding Neck Flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting.

2.Slip On flange.
The calculated strength from a Slip On flange under internal pressure is of the order of two-thirds that of Welding Neck flanges, and their life under fatigue is about one-third that of the latter.

3.Socket Weld flange.
Socket Weld flanges were initially developed for use on small-size high pressure piping. Their static strength is equal to Slip On flanges, but their fatigue strength 50% greater than double-welded Slip On flanges.

4.Blind flange.
Blind Flanges are manufactured without a bore and used to blank off the ends of piping, Valves and pressure vessel openings.

ZK flange
ZK flange


ZK casting has many years of experience in providing various of flange, pump, pulley and so on. If you are interested in our products, please contact us at any time.

Tag: flange,the most common flange types,calculated strength,blind Flanges
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