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Welding Neck Flange, High-hub Flange Manufacturer
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Welding Neck Flange, High-hub Flange Manufacturer

Categories | Pipe Fittings |
---|---|
Brand | BAOLAI Steel Pipe Wholesale Manufacturer |
Model | ASME/ ANSI B16.5 |
Certificate | ISO |
Material | Carbon: ASTM A105/ Stainless: ASTM A182 304L/316L |
Size | 1/2" to 60" |
Sealing type | Flat Face(FF)/Raised Face(RF)/Ring Type Joint(RTJ) |
Pressure Class | 150LB/ 300LB/ 600LB/ 900LB/ 1500LB/ 2500LB |
Surface | Oil/ Black Paint/ Hot Dipped Galvanized |
Update Time | February 6,2023 |
Detail Information
Specification
Welding Neck Flange
Welding Neck Flange is generally referred to as a "high hub" flange. It is designed to transfer pressure to the pipe and reduce high pressure at the base of the flange.
Welding Neck Flange is a butt-welding flange with the best design among currently available flanges because of its unique structure.
Class150 ANSI B16.5 Forged Flange Size
Note: Some of the main specifications are shown below, please contact us for more details.

unit: mm
NPS | Outside Diam. | Diam. at Base of Hub |
OD of Raised Face | Thickness | Bore of Welding Neck Socket Welding | Length Thru Hub |
D | X | G | t | B1 | T1 | |
1/2" | 89 | 30.2 | 35.1 | 11.2 | 15.7 | 47.8 |
2" | 152 | 77.7 | 91.9 | 19.1 | 52.6 | 63.5 |
6" | 279 | 192.0 | 215.9 | 25.4 | 154.2 | 88.9 |
12" | 483 | 365.3 |
381.0 | 31.8 | 304.8 | 114.3 |
24" | 813 | 663.4 |
692.2 | 47.8 | 590.6 | 152.8 |
One-stop service to facilitate your purchase
The Baolai Group continues to provide service and support after your purchase. To save you time, we offer you numerous value-added services such as processing, logistics management and testing.
Processing Services:
- √OEM & ODM
- √Protective Coatings
- √Saw and Flame Cutting
- √Beveling, Threading and Grooving
- For more information, please contact our service team.
Contact Person

- Name:
- Sales Manager
- Tel:
- 0086-022-83377302
- 0086-15510871616
- info@baolaisteel.com
- Address:
- 04,9TH FLOOR,NINGTAI PLAZA,NO.1 XIAGUANG ROAD,NANKAI DISTRICT,TIANJIN,CHINA