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Asme B16.47 Ser,B Welding Neck Flanges

Your Professional Asme B16.47 Ser,B Welding Neck Flanges Supplier

 

 

Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Mainly produce flanges and forgings of various specifications. Application in piping installation, pressure vessel, equipment accessories.

 
 
Why Choose Us

 

Our Service
With strong technical force, advanced production technology, perfect quality inspection, and reliable after-sales service, it provides a basis for supervision and cooperation for many customers at home and abroad.

 

Our Certificate
The company Excellent Supplier of 2019 Safety production standardization certificate Quality management system certification.

 

Production Market
The products are mainly exported. It is exported to Europe, America and other countries and regions. The product quality is good, and the service is attentive. It is deeply appreciated and trusted by customers and users at home and abroad, and has won a high reputation. They have become one of the largest flange and forging suppliers in China.

 

Our Factory
Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Convenient transportation, abundant coal and power resources, fast communication and superior environment.

 

Features of Asme B16.47 Ser,B Welding Neck Flanges

 

Butt welding connection:

The large diameter butt welding flange has a welding neck, which can be directly welded with the pipe to provide a stable connection.

High strength:

Due to the use in high-pressure and high-temperature environments, these flanges are usually made of high-temperature-resistant, high-strength materials to ensure their performance and safety.

ASME B16.47 SER,B Class75 WELDING NECK FLANGES

Suitable for high pressure and high temperature:

Due to its design and material characteristics, this flange is very suitable for high pressure and high temperature applications.

Excellent sealing performance:

Flange connections usually need to have good sealing performance to prevent leakage, so the large-diameter butt welding flange is designed with a sealing surface to ensure a good sealing effect.

 

 

Asme B16.47 Ser,B Welding Neck Flanges Dimensions

 

 

Pipe Normal Diam.

O.D.
OF
Flange

Thick
ness
(Thk.)

Length
Through
Hub

Diam. of
Hub
at Base

Hub
Diam.
Top

Raised
Face
Diam.

Diam. of
Bolt
Circle

No. of
Bolt
Holes

Diam. of
Bolt
Holes

Diam. of
Bolt

Fillet
Radius
Min.

Inch

O

C

Y

X

A

R

BD

BN

BH

DB

R1

26"

762

33.3

58.7

676.1

661.9

704.9

723.9

36

19.1

5/8"

7.9

28"

812.8

33.3

62

726.9

712.7

755.7

774.7

40

19.1

5/8"

7.9

30"

863.6

33.3

65

777.7

763.5

806.5

825.5

44

19.1

5/8"

7.9

32"

914.4

35.1

69.9

828.5

814.3

857.3

876.3

48

19.1

5/8"

7.9

34"

965.2

35.1

73.2

879.3

865.1

908.1

927.1

52

19.1

5/8"

7.9

36"

1033.5

36.6

85.8

935

915.9

965.2

992.1

40

22.4

3/4"

9.7

38"

1084.3

38.1

88.9

985.8

966.7

1016

1042.9

40

22.4

3/4"

9.7

40"

1135.1

38.1

91.9

1036.6

1017.5

1066.8

1093.7

44

22.4

3/4"

9.7

42"

1185.9

39.6

95.3

1087.4

1068.3

1117.6

1144.5

48

22.4

3/4"

9.7

44"

1251

42.9

104.6

1140

1119.1

1174.8

1203.5

36

25.4

7/8"

9.7

46"

1301.8

44.5

108

1190.8

1169.9

1225.6

1254.3

40

25.4

7/8"

9.7

48"

1352.6

46

111.3

1241.6

1220.7

1276.4

1305.1

44

25.4

7/8"

9.7

50"

1403.4

47.8

115.8

1293.9

1271.5

1327.2

1355.9

44

25.4

7/8"

9.7

52"

1457.5

47.8

120.7

1344.7

1322.3

1378

1409.7

48

25.4

7/8"

9.7

54"

1508.3

49.3

125.5

1397

1373.1

1428.8

1460.5

48

25.4

7/8"

9.7

56"

1574.8

50.8

134.9

1450.8

1423.9

1485.9

1521

40

28.4

1"

11.2

58"

1625.6

52.3

138.2

1501.6

1474.7

1536.7

1571.8

44

28.4

1"

11.2

60"

1676.4

55.6

144.5

1552.4

1525.5

1587.5

1622.6

44

28.4

1"

11.2

 

2

 

Material of Asme B16.47 Ser,B Welding Neck Flanges

Carbon Steel: ASTM A105/SA105, A350 LF2.
Alloys: Various high yield carbon steels (ASTM A694).
Stainless Steels: Duplex (S31803/F51), Super Duplex (S32750/F53).
Nickel Alloys: Nickel 200, 201.

 

 

Asme B16.47 Ser,B Welding Neck Flanges Weight

 

 

Nominal Size

Weight of Weld Neck Flange

48

4980

46

4640

44

4300

42

3960

40

3620

38

3385

36

2520

34

2450

32

2065

30

1820

28

1520

26

1050

 

Process of Asme B16.47 Ser,B Welding Neck Flanges
 

Preparation and Inspection
First, make sure the pipe and joint are whole. Look for cracks, damage, or dirt in the weld that could weaken it. Make sure you have the right tools for the job.

 

Alignment
For the join to work, the pieces must be perfectly lined up. Make sure the pipe and joint are lined up right with tuning tools. It is very important to do this step so that stress doesn't build up and forces are spread out properly across the joint.

 

Tack Welding
Once everything is in place, do tack welds around the edge of the joint several times. The small welds hold the plate and pipe in place while the big welds are being made. For most jobs, four tack welds spread at 90-degree intervals are enough.

 

Preheating
You might need to heat the welding neck flanges up first to keep them from breaking when they cool down too fast. How thick the cloth is and what kind it is make the difference. Pay close attention to how to really heat up the things that are going to be combined.

 

Full Welding
These are the first welds that are made. If the job needs it, you can use TIG, MIG, or SMAW to weld. Hold the piece together and join it with welding.

 

Post-weld Heat Treatment
It may be necessary to heat treat some layers and materials after the weld is done to make the joint stronger and less stressed.

 

Inspection and Testing
Test the weld in both safe and risky ways once it's done to make sure it meets all quality and safety standards.

If welders carefully follow these steps, they can make a strong link between the pipe and the weld neck lip. This keeps the whole set of pipes together.

 

 

FAQ

 

 

Q: What are the advantages of weld neck flanges?

A: Weld neck flanges are strong and flexible in nature, which makes them suitable for high pressure applications as well as higher temperature application. They can be used on a wide variety of pipes and tubing that have different diameters or sizes available in the market.

Q: What is the difference between ASME B16 47 Series A and B flanges?

A: 47 Series A and Series B flanges? ASME B16 47 Series A flanges are thicker, heavier, and stronger than their Series B counterparts. They also can often handle more external loading than Series B. Series A flanges tend to be more costly than Series B flanges.

Q: When to use a weld neck flange?

A: Weld neck flanges are used in applications where the conditions are severe and critical. Some of these conditions include high pressure, wide fluctuations in temperature and pressure, high temperature, fluids that are volatile and hazardous, and temperatures in the sub-zero range.

Q: What is another name for a weld neck flange?

A: High-hub flange
A weld neck flange (also known as a high-hub flange and tapered hub flange) is a type of flange. There are two designs. The regular type is used with pipes. The long type is unsuitable for pipes and is used in process plant.

We're well-known as one of the leading asme b16.47 ser,b welding neck flanges manufacturers and suppliers in China. If you're going to wholesale high quality asme b16.47 ser,b welding neck flanges with competitive price, welcome to get more information from our factory. Also, customized service is available.

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