Lap Joint Flanges

Lap Joint Flanges (LJ Flanges) are used on piping fitted with lapped pipe or with lap joint stub ends the combined initial cost of the two items being approximately one-third higher than that of comparable welding neck flanges.

Lap Joint Flanges

Lap joint flange is having two components, a stub end, and a loose backing flange. Stub end is butt welded to the pipe and Backing flange freely move over the pipe. The backing flange can be of different material than stub material and normally of the carbon steel to save the cost. Lap flange is used where frequent dismantling is required, and space is constrained.


Some applications of Lap joint flanges

Furthermore, a standard lap joint flange will typically have a longer hub length in comparison to a slip on flange, but this is often considered unnecessary for many applications.

Ceramic Lined Lateral pipe Wye

Ceramic Lined Lateral pipe Wye from a single spool piece to complete piping systems.

The lap joint flange is practically identical to a slip-on flange except it has a radius at the intersection of the bore and flange face.

Ceramic Lined Lateral pipe Wye
Large-size-ceramic-lined-bends-export-to-Hongkong
Ceramic Lined Bends

With the support of our experienced professionals, our enterprise has established in this domain as a reputed manufacturer, exporter and supplier of Ceramic Lined Bends.

The lap joint flange is practically identical to a slip-on flange except it has a radius at the intersection of the bore and flange face. This radius is necessary to have the flange accommodate a lap joint stub end. Normally, a lap joint flange and a lap joint stub end are mated together is an assembly system.




Standards, Dimensions & Weight of Lap joint flange

AWWA Ring FlangeLap joint flange is having two components, a stub end, and a loose backing flange.

These flanges are nearly identical to a Slip On flange with the exception of a radius at the intersection of the flange face and the bore to accommodate the flanged portion of the Stub End.

Flange Material:

ANSI, MSS, API, AWWA, DIN, JIS, BS and GB.

free forging, plate cutting.

1/2" to 64" (and much larger size according to customers' demands).

Carbon steel and alloy steel with yellow print, black print, oil or zinc.

in wooden cases, wooden pallets or as per customers' special requirement, Standard Export Package.

* We can also manufacture special application flanges and forgings that customers require.