Stubend Fitting is a  fitting that is used replace welded flanges when the support of a rotating back up flange is required. And It can be supplied in standard and non-standard ANSI dimension that is used for connecting pipes of different diameter.We are well known Stubend Fitting Manufacture. We are also Manufacture of Stubend Fitting in Kolkata, West Bengal, Bihar, Odisha, Jharkhand. .

Stubend Fitting Features

Stubend Fitting must have high quality, and it possess features as below:

• Thermal stability
• Long function life
• High mechanical strength

Stub End Types

Stub end are offered in three different ways, type A, B and C. Type A and B stub end are similar to forged fittings, such as elbows and tees, and type C stub end are made in customized sizes.

Type A

The type A stub end is used for standard lap joint flange. The lap thickness on the stub end is greater than or equal to the nominal thickness of pipe wall. In addition, the outer corner radius of the type A can receive the lap joint flange. The inside corner is square. Lap usually has a machined serrated face.

Type B

The type B stub end is used for standard slip on flanges as lap flanges. The lap thickness on these short ends is greater than or equal to the nominal thickness of pipe wall. Also, the outer corner radius of type B is small enough to receive the slip o flange that can be used as a backup flange. The inner corner is square. Lap usually has a machined serrated face.

Type C

The type C stub end can be used for standard lap joint flange and slip on flange. It is flared leaving a rounded edge at the inside diameter of the lap. If necessary, the radius can be made closed to a square. The lap thickness is 75% of the pipe wall. The type C is very short enough to accommodate any backup flange. The lap joint on type C is smooth, and it is not machine.

Stubend Fitting Benefits

• Easy to prepare(does not require cut faces to be parallel or perfectly flat)
• Can be formed between two dissimilar metals, such as aluminum and copper.
• Accommodates different thickness (thinner piece must be welded on top), thin material such as diaphragms and foils can be connected

Industrial Applications

S Nomi, Stub end Fitting is widely used in the petroleum, chemical, power, gas, metallurgy, shipbuilding and construction industries. It is made from high quality raw materials, and available in a variety of sizes and designs. S Nomi is the leading manufacturer of Stub end Fitting in Kolkata, West Bengal, Bihar, Odisha, Jharkhand. 

Long Stubend

Size: 1/2″ NB to 48″ NB In

Schedule: SCH 20, SCH30, SCH40, STD, STD 80, XS, SCH60, SCH80, SCH120, SCH 160, SCH 140, XXS

Type: Seamless / ERW / welded / Fabricated

Materials :

• S.S – ASTM A403 WP Gr. 304 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
• C.S – ASTM A234 WPB, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65, WPHY 70 
• Low Temparature C.S – ASTM A420 WPL3 / A420 WPL6 
• Alloy Steel : ASTM/ ASME A/SA Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91
• Duplex Steel : ASTM A 815 uns no S 31803, S 32205 Nickel Alloy