What are Lap Joint Flanges?

We are manufacturer of Lap Joint Flanges and supply high quality Lap Joint Flanges in both large and small quantities worldwide and offer you the best prices in the market.

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

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

Process:  free forging, plate cutting.

Sizes range:  1/2″ to 64″ (and much larger size according to customers’ demands).

Materials:  Carbon steel, stainless steel and alloy steel.

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

Packing:  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.

Size: 1/2” to 60”, DN 12mm to DN 1500mm
Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
Facing: RF / RTJ
Stainless Steel: WP304, 304L, 310, 316, 316L, 321, 347, 904L
Carbon Steel: ASTM A234 WPB, WPC ASTM A105 WPHY 42, 46, 52, 56, 60, 65, 70
Alloy Steel: ASTM A234 WP1, WP5, WP9, WP11, WP22, WP91
Duplex Stainless Steel: F51, 2205, F53, 2507, etc

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