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Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline

Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline
  • Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline
  • Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline
  • Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline
  • Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline
  • Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline
  • Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline
  • Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline

Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline

Orifice flanges are one of the economical means of measuring flow. The assemblies and associated components are used for measuring the flow of various Liquids, Gases & Steam from 2” to 32” line sizes.

 

The traditional orifice flange assembly consists of a pair of flanges, orifice plates, bolts, nuts, gaskets, jacking screws and plugs, etc. The flanges are generally in weld neck design, but it also available slip-on and threaded.

 

The orifice plate is commonly used as the main element of traffic measurement in the pipeline. Its operating principle is: when the fluid flows from the main pipeline. The orifice plate restricts the flow and develops the Differential Pressure which is proportional to the square root of the flow rate.

 

The majority of flanges are manufactured from forged steel. The forged construction provides higher strength and durability to provide long-lasting performance in the application.

Introduction

Standard

ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ASME Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ASME B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092

Material

Stainless Steel, Alloy Steel, Duplex, Nickel Alloys, Low-temperature Steel, Carbon Steel, Cupro Nickel

Surface

Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Type

Cutting, Heat treatment, Die Forging/Free Forging, CNC Machining

size

1"-24"

Delivery time

Within 5-30 days after receiving the prepaid

Packing

Below 24", will be packed by plywood case; Above 24", will be packed by plywood pallet

Application

Heavy and light chemicals, Steel, Paper, Nuclear, Petrochemicals, Sewage treatment, Water treatment and distribution, Power Generation, Oil production and refining, Gas Processing and transmission, etc.

Class 300

Size

Inside diameter and deviation

Diameter

Minimal thickness

Diameter of the

Raised face

Length of the

Orifice

Diameter of the

Base

Shaft diameter

At the point of

Welding

Size of

Tomas hole

Flange drilling template

Screw connector size and length

Approximate weight (pounds)

inch

A*

J

N*

C*

H

O

X

Bolt circulation diameter

Aperture

Number of holes

Size, length, asparagus

½

0.622±0.002

3 ¾

1 3/8

3

1 ½

0.84

¼

2 5/8

9/16

4

½ × 4 3/4

½ × 3

10

¾

0.824±0.002

4 5/8

1 ½

1 11/16

3 1/8

1 7/8

1.05

¼

3 ¼

11/16

4

5/8 × 5

½ × 3

10

1

1.049±0.003

4 7/8

1 ½

2

3 ¼

2 1/8

1.31

¼

3 ½

11/16

4

5/8 × 5

5/8 × 3

18

1.610±0.003

6 1/8

1 ½

2 7/8

3 3/8

2 ¾

1.90

¼

4 ½

13/16

4

¾× 5 ¼

5/8 × 3

25

2

2.067±0.003

6 ½

1 ½

3 5/8

3 3/8

3 5/16

2.38

3/8

5

11/16

8

5/8 × 5

5/8 × 3

27

2.469±0.003

7 ½

1 ½

4 1/8

3 ½

3 15/16

2.88

3/8

5 7/8

13/16

8

¾ × 5 ¼

5/8 × 3

35

3

3.068±0.003

8 ¼

1 ½

5

3 ½

4 5/8

3.50

3/8

6 5/8

13/16

8

¾ × 5 ¼

¾ × 3

43

4

4.026±0.004

10

1 ½

6 3/16

3 5/8

5 ¾

4.50

½

7 7/8

13/16

8

¾ × 5 ¼

¾ × 3

66

6

6.065±0.004

12 ½

1 ½

8 ½

3 15/16

8 1/8

6.63

½

10 5/8

7/8

12

¾ × 5 ¼

¾ × 3

106

8

T ± 0.004

15

1 5/8

10 5/8

4 3/8

10 ¼

8.663

½

13

1

12

7/8 × 5 ¾

¾ × 3

152

10

T ± 0.005

17 ½

1 7/8

12 ¾

4 5/8

12 5/8

10.75

½

15 ¼

1 1/8

16

1 × 6 ½

1 × 4 ½

216

12

T ± 0.005

20 ½

2

15

5 1/8

14 ¾

12.75

½

17 ¾

1 ¼

16

1 1/8 × 7 ¼

1 × 4 ½

327

14

T ± 0.005

23

2 1/8

16 ¼

5 5/8

16 ¾

14.00

½

20 ¼

1 ¼

20

1 1/8 × 7 ½

1 × 4 ½

448

16

T ± 0.005

25 ½

2 ¼

18 ½

5 ¾

19

16.00

½

22 ½

1 3/8

20

1 ¼ × 8

1 × 4 ½

596

18

T ± 0.007

28

2 3/8

21

6 ¼

21

18.00

½

23 ¾

1 3/8

24

1 ¼ × 8 ¼

1 × 4 ½

741

20

T ± 0.007

30 ½

2 ½

23

6 3/8

23 1/8

20.00

½

27

1 3/8

24

1 ¼ × 8 ½

1 × 4 ½

887

24

T ± 0.007

36

2 ¾

27 ¼

6 5/8

27 5/8

24.00

½

32

1 1/5

24

1 ¼ × 9 ½

1 × 5 ½

1311

 

 

Class 400

Size

Inside diameter and deviation

Diameter

Minimal thickness

Diameter of the

Raised face

Length of the

Orifice

Diameter of the

Base

Shaft diameter

At the point of

Welding

Size of

Tomas hole

Flange drilling template

Screw connector size and length

Approximate weight (pounds)

inch

A*

J

N*

C*

H

O

X

Bolt circulation diameter

Aperture

Number of holes

Size, length, asparagus

4

4.026±0.004

10

1 3/8

6 3/16

3 ½

5 ¾

4.50

½

7 1/8

1

8

7/8 × 5 ¾

¾ × 4

82

6

6.065±0.004

12 ½

1 5/8

8 ½

4 1/16

8 1/8

6.63

½

10 5/8

1

12

7/8 × 6 ½

¾ × 4

136

8

T ± 0.004

15

1 7/8

10 5/8

4 5/8

10 ¼

8.663

½

13

1 1/8

12

1 × 7

¾ ×4 ½

213

10

T ± 0.005

17 ½

2 1/8

12 ¾

4 7/8

12 5/8

10.75

½

15 ¼

1 ¼

16

1 1/8 × 8

1 × 4 ½

309

12

T ± 0.005

20 ½

2 ¼

15

5 3/8

14 ¾

12.75

½

17 ¾

1 3/8

16

1 ¼ × 8 ½

1 × 4 ½

429

14

T ± 0.005

23

2 3/8

16 ¼

5 7/8

16 ¾

14.00

½

20 ¼

1 3/8

20

1 ¼ × 8 ¾

1 × 4 ½

554

16

T ± 0.005

25 ½

2 ½

18 ½

6

19

16.00

½

22 ½

1 ½

20

1 3/8 × 9 ½

1 × 5 ½

705

18

T ± 0.007

28

2 5/8

21

6 ½

21

18.00

½

24 ¾

1 ½

24

1 3/8 × 9 ¾

1 × 5 ½

863

20

T ± 0.007

30 ½

2 ¾

23

6 5/8

23 1/8

20.00

½

27

1 5/8

24

1 ½× 10 ¼

1 × 5 ½

1066

24

T ± 0.007

36

3

27 ¼

6 7/8

27 5/8

24.00

½

32

1 7/8

24

1 ¾ × 11 ½

1 × 6 ½

1555

 

 

 

 

 

Class 600

Size

Inside diameter and deviation

Diameter

Minimal thickness

Diameter of the

Raised face

Length of the

Orifice

Diameter of the

Base

Shaft diameter

At the point of

Welding

Size of

Tomas hole

Flange drilling template

Screw connector size and length

Approximate weight (pounds)

inch

A*

J

N*

C*

H

O

X

Bolt circulation diameter

Aperture

Number of holes

Size, length, asparagus

4

4.026±0.004

10 ¾

1 ½

6 3/16

4

6

4.50

½

8 ½

1

8

7/8 × 6

¾ × 4

103

6

6.065±0.004

14

1 7/8

8 ½

4 5/8

8 ¾

6.63

½

11 ½

1 1/8

12

1 × 7

¾ × 4

195

8

T ± 0.004

16 ½

2 3/16

10 5/8

5 ¼

10 ¾

8.663

½

13 ¾

1 ¼

12

1 1/8 × 8

¾ × 4½

278

10

T ± 0.005

20

2 ½

12 ¾

6

13 ½

10.75

½

17

1 3/8

16

1 ¼ × 8¾

1 × 5½

454

12

T ± 0.005

22

2 5/8

15

6 1/8

15 ¾

12.75

½

19 ¼

1 3/8

20

1 ¼ × 9

1 × 5½

553

14

T ± 0.005

23 ¾

2 ¾

16 ¼

6 ½

17

14.00

½

20 ¾

1 ½

20

1 3/8 × 9¾

1 × 5½

815

16

T ± 0.005

27

3

18 ½

7

19 ½

16.00

½

20 ¾

1 5/8

20

1½ × 10 ½

1 × 5½

1113

18

T ± 0.007

29 ¼

3 ¼

21

7 ¼

21 ½

18.00

½

25 ¾

1 ¾

20

1 5/8 ×10 ½

1 × 6½

1306

20

T ± 0.007

32

3 ½

23

24

20.00

½

28 ½

1 ¾

24

1 5/8 × 12

1 × 6½

1622

24

T ± 0.007

37

4

27 ¼

8

28 ½

24.00

½

33

2

24

1 7/8 × 13¾

1 × 8

2320

 

 

Class 900

Size

Inside diameter and deviation

Diameter

Minimal thickness

Diameter of the

Raised face

Length of the

Orifice

Diameter of the

Base

Shaft diameter

At the point of

Welding

Size of

Tomas hole

Flange drilling template

Screw connector size and length

Approximate weight (pounds)

inch

A*

J

N*

C*

H

O

X

Bolt circulation diameter

Aperture

Number of holes

Size, length, asparagus

3

T ±0.003

9 ½

1 ½

5

4

5

3.50

½

7 ½

1

8

7/8 × 6

¾ × 4

79

4

T ±0.004

11 ½

1 ¾

6 3/16

4 ½

6 ¼

4.50

½

9 ½

1 ¼

8

1 1/8 ×7

¾ × 4

129

6

T ±0.004

15

2 3/16

8 ½

5 ½

9 ¼

6063

½

12 ½

1 ½

12

1 1/8 × 8

¾×4 ½

263

8

T ± 0.004

18 ½

2 ½

10 5/8

6 3/8

11 ¾

8.63

½

15 ½

1 ½

12

1 3/8×9

1×5 ½

445

10

T ± 0.005

21 ½

2 ¾

12 ¾

7 ¼

14 ½

10.75

½

18 ½

1 ½

16

1 3/8×9 ¾

1×5 ½

634

12

T ± 0.005

24

3 1/8

15

7 7/8

16 ½

12.75

½

21

1 ½

20

1 3/8×10½

1×5 ½

872

 

 

 

 

Class 1500

Size

Inside diameter and deviation

Diameter

Minimal thickness

Diameter of the

Raised face

Length of the

Orifice

Diameter of the

Base

Shaft diameter

At the point of

Welding

Size of

Tomas hole

Flange drilling template

Screw connector size and length

Approximate weight (pounds)

inch

A*

J

N*

C*

H

O

X

Bolt circulation diameter

Aperture

Number of holes

Size, length, asparagus

1

T ±0.003

5 7/8

1 ½

2

3 ¼

2 1/16

1.32

¼

4

1

4

7/8×6

5/8×4

26

T ±0.003

7

1 ½

2 7/8

3 ½

4 ¾

1.90

¼

4 7/8

1 1/8

4

1×6 ¼

5/8×4

45

2

T ±0.003

8 ½

1 ½

3 5/8

4

4 1/8

2.38

3/8

6 ½

1

8

7/8×6

5/8×4

65

T ±0.003

9 5/8

1 5/8

4 1/8

4 1/8

4 7/8

2.88

3/8

7 ½

1 1/8

8

1×6 ½

5/8×4

98

3

T ±0.003

10 ½

1 7/8

5

4 5/8

5 ¼

3.50

3/8

8

1 ¼

8

1 1/8×7¼

¾×4

123

4

T ±0.004

12 ¼

2 1/8

6 3/16

4 7/8

6 3/8

4.50

½

9 ½

1 3/8

8

1 ¼×8

¾×4 ½

182

6

T ±0.004

15 ¼

3 ¼

8 ½

6 ¾

9

6.63

½

12 ½

1 ½

12

1 3/8×10¾

¾×5½

407

8

T ±0.004

19

3 5/8

10 5/8

8 3/8

11 ½

8.63

½

15 ½

1 ¾

12

1 5/8×12

1×7

675

10

T ±0.005

23

4 ¼

12 ¾

10

14 ½

10.75

½

19

2

12

1 7/8×14

1×8

1099

12

T ±0.005

26 ½

4 7/8

15

11 1/8

17¾

12.75

½

22 ½

2 1/8

16

2×15¾

1×9

1706

 

Class 2500

Size

Inside diameter and deviation

Diameter

Minimal thickness

Diameter of the

Raised face

Length of the

Orifice

Diameter of the

Base

Shaft diameter

At the point of

Welding

Size of

Tomas hole

Flange drilling template

Screw connector size and length

Approximate weight (pounds)

inch

A*

J

N*

C*

H

O

X

Bolt circulation diameter

Aperture

Number of holes

Size, length, asparagus

1

T ±0.003

6 ¼

1 ½

2

3 5/8

2 ¼

1.32

¼

4 ¼

1

4

7/8×6

5/8×4

26

T ±0.003

8

1 ¾

2 7/8

4 3/8

3 1/8

1.90

¼

5 ¾

1 ¼

4

1 1/8×7

¾×4

56

2

T ±0.003

9 ¼

2

3 5/8

5

3 ¾

2.38

3/8

6 ¾

1 1/8

8

18×7 ¼

¾×4

84

T ±0.003

10 ½

2 ¼

4 1/8

5 5/8

4 ½

2.88

3/8

7 ¾

1 ¼

8

1 1/8×8

¾×4 ½

104

3

T ±0.003

12

2 5/8

5

6 5/8

5 ¼

3.50

3/8

9

1 3/8

8

1 1/4×9¼

¾×5 ½

188

4

T ±0.004

14

3

6 3/16

7 ½

4.50

½

10 ¾

1 5/8

8

1 ½×10½

¾×5 ½

292

6

T ±0.004

19

4 ¼

8 ½

10 ¾

9 ¼

6.63

½

14 ½

2 1/8

8

2×14 ¼

¾×8

756

8

T ±0.004

21 ¾

5

10 5/8

12 ½

12

8.63

½

17 ¼

2 1/8

12

2×15 ¾

1×9

1152

10

T ±0.005

26 ½

6 ½

12 ¾

16 ½

14 ¾

10.75

½

21 ¼

2 5/8

12

2 ½×20

1×11

2136

12

T ±0.005

30

7 ¼

15

18 ¼

17 ¼

12.75

½

24 3/8

2 7/8

12

2 ¾×22

1×12

3216

Applications

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Xinhang Special Material Co., Ltd. Hangzhou Branch

16+ Years Stainless Steel Pipe Manufacturer

Xinhang Special Material Co., Ltd. Hangzhou Branch
Xinhang Special Material Co., Ltd. Hangzhou Branch

Xinhang Special Material Co., Ltd. Hangzhou Branch is famous China Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline suppliers and OEM/ODM Orifice Flange Assembly Is The Element Of Traffic Measurement In The Pipeline manufacturers, founded in 2007 and moved to Longyou Economic Development Zone, Zhejiang Province, in 2022. It covers an area of 130,000 square meters, more than 30 production lines, 300 workers, 20 R&D people, 30 inspection people and an annual output of 50,000 tons.

It has passed ISO9001:2008 quality management system, PED 97/23/EC EU Pressure Equipment Directive certification, China Special Equipment Manufacturing License (Pressure Tube) TS certification, ASME certification, provincial enterprise standardization management system, ISO14000:2004 environment management system, cleaner production (green enterprise), and a series of certifications, as well as China Classification Society (CCS), American Bureau of Shipping (ABS), British Register of Shipping (LR), Deutsche Veritas (GL), Bureau Veritas Society (BV), Det Norske Veritas (DNV), and Korean Register of Shipping (KR) factory certification.

The main products include stainless steel pipes, pipe fittings, flanges, valves, etc., which are widely used in petroleum, chemical industry, nuclear industry, smelting, shipbuilding, pharmaceuticals, food, water conservancy, electric power, new energy, mechanical equipment, and other fields. The company adheres to the corporate tenet of "quality for survival, reputation for development" and wholeheartedly serves every customer to create a win-win situation.

Honor

  • Steel Pipe And Tubes
  • Approval Of Manufacturing Process
  • Approval Certificate For Materials
  • Approval Certificate for Manufacturing Process
  • ABS

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