Welded flange

  • Welded flange

Welded flange

Welded flange is a commonly used flange form in pipeline connections, which can work under high pressure and temperature conditions. The structure of a welded flange consists of a flange body and a welding neck, which is connected together by bolts using a joint welded to the pipeline. The main characteristics of welded flanges are good sealing performance, high temperature resistance, and low leakage. They have been widely used in fields such as petrochemical, shipbuilding, aerospace, and have become many industry standards.

Range of external diameter: 100 mm to 15000 mm

Material: WCB、LCB、LC3、WC5、WC9、C5、C12

Flange sealing cover: 316 stainless steel strip or non-metallic strip, 316 SS casting, 316 SS worm gear fixture, closed groove chloroprene rubber layer, ECH rubber gasket

Delivery type: 30-60 days


Overview of Welded flange

Welded flange is a commonly used flange form in pipeline connections, which can work under high pressure and temperature conditions. The structure of a welded flange consists of a flange body and a welding neck, which is connected together by bolts using a joint welded to the pipeline. The main characteristics of welded flanges are good sealing performance, high temperature resistance, and low leakage. They have been widely used in fields such as petrochemical, shipbuilding, aerospace, and have become many industry standards.

Features of Welded flange

  • Good sealing performance

    The structure of welded flanges is particularly suitable for situations with high pressure and sealing requirements, and its sealing performance is superior to ordinary flanges. Compared with traditional gaskets, welded flanges have more reliable sealing performance and are less prone to leakage and failure.

  • High temperature performance
    Welding flanges are made of high-temperature materials and have strong high-temperature resistance. In high-temperature and high-pressure environments, the performance of welded flanges is stable and not prone to cracking.

  • Durable and sturdy
    The body and welding neck of the welding flange are made of high-strength materials, which have good corrosion resistance and thermal stability and can be used for a long time.

Techspecs

  • Range of external diameter: 100 mm to 15000 mm

  • Material: WCB、LCB、LC3、WC5、WC9、C5、C12

  • Flange sealing cover: 316 stainless steel strip or non-metallic strip, 316 SS casting, 316 SS worm gear fixture, closed groove chloroprene rubber layer, ECH rubber gasket

  • Delivery type: 30-60 days

Applications of Welded flange

Due to the advantages of good sealing, high temperature resistance, and durability, welded flanges have become a commonly used connection method in industrial pipeline systems. In fields such as petrochemical and natural gas, welded flanges have become the preferred way to connect equipment such as pipelines, valves, and pumps.

Supplier of Welded flange

LTZC providesWelded flange. If you are looking for a supplier of Welded flange please contact us for the latest quotation.


Flange NPSInside
Diameter
Outside
Diameter
Bolt Circle
(BC)
Raised Face
(R)
Raised Face
(RF)
HH1Raised Face
Thickness (T)
T1Flat Face
Thickness (T2)
Bolt Hole
(B)
No. of
Bolt Holes
1/2″0.62″3.50″2.38″1.38″.063″1.19″0.84″1.88″.38″1.82″.62″4
3/4″0.82″3.88″2.75″1.69″.063″1.50″1.05″2.06″.44″2.00″.62″4
1″1.05″4.25″3.12″2.00″.063″1.94″1.32″2.19″.50″2.13″.62″4
1-1/4″1.38″4.62″3.50″2.50″.063″2.31″1.66″2.25″.56″2.19″.62″4
1-1/2″1.61″5.00″3.88″2.88″.063″2.56″1.90″2.44″.62″2.38″.62″4
2″2.07″6.00″4.75″3.62″.063″3.06″2.38″2.50″.69″2.44″.75″4
2-1/2″2.47″7.00″5.50″4.12″.063″3.56″2.88″2.75″.82″2.69″.75″4
3″3.07″7.50″6.00″5.00″.063″4.25″3.50″2.75″.88″2.69″.75″4
3-1/2″3.55″8.50″7.00″5.50″.063″4.81″4.00″2.81″.88″2.75″.75″8
4″4.03″9.00″7.50″6.19″.063″5.31″4.50″3.00″.88″2.94″.75″8
5″5.05″10.00″8.50″7.31″.063″6.44″5.56″3.50″.88″3.44″.88″8
6″6.07″11.00″9.50″8.50″.063″7.56″6.63″3.50″.94″3.44″.88″8
8″7.98″13.50″11.75″10.62″.063″9.69″8.63″4.00″1.06″3.94″.88″8
10″10.02″16.00″14.25″12.75″.063″12.00″10.75″4.00″1.13″3.94″1.00″12
12″12.00″19.00″17.00″15.00″.063″14.38″12.75″4.50″1.19″4.44″1.00″12
14″13.25″21.00″18.75″16.25″.063″15.75″14.00″5.00″1.32″4.94″1.12″12
16″15.25″23.50″21.25″18.50″.063″18.00″16.00″5.00″1.38″4.94″1.12″16
18″17.25″25.00″22.75″21.00″.063″19.88″18.00″5.50″1.50″5.44″1.25″16
20″19.25″27.50″25.00″23.00″.063″22.00″20.00″5.69″1.63″5.63″1.25″20
22″21.25″29.50″27.25″25.25″.063″24.25″22.00″5.88″1.75″5.82″1.38″20
24″23.25″32.00″29.50″27.25″.063″26.12″24.00″6.00″1.82″5.94″1.38″20

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