Dec 25, 2025 Leave a message

ASME B16.11 Square Head Plug Dimension

ASME B16.11 Square Head Plugs are primarily used for sealing the ends of piping systems, providing sealing and protecting the internal structure of the pipes. HT PIPE is a leading stockist and global exporter with over 15 years of expertise in international trade. We supply pipes, plates, round bars, and a comprehensive range of pipe fittings, flanges, and valves. Contact us now for free quotes and personalized product information.

 

ASME B16.11 Standard Core Requirements

Pressure Rating: Applicable to high-pressure classes such as Class 2000, 3000, 6000, and 9000. The pressure-temperature ratings for different materials must comply with the requirements of the standard's appendix.

 

Size Range: Nominal pipe size (NPS) typically covers 1/8 to 4 inches. The specific size must match the pipe thread specifications.

 

Thread Type: Common types include NPT (American National Standard Taper Pipe Thread). Thread accuracy and sealing performance must meet the standard testing requirements.

 

Material Requirements: Must use forged carbon steel, stainless steel, alloy steel, and other materials conforming to ASTM standards, such as A105 (carbon steel), A182 F304/F316 (stainless steel), A182 F11/F22 (alloy steel), etc. The chemical composition and mechanical properties of the materials must be verified by third-party testing.

 

Surface Treatment: Depending on the application environment, pickling and passivation, galvanizing, or anti-corrosion coatings can be applied to ensure corrosion resistance.

 

ASME B16.11 Square Head Plug Product Features

Easy Installation: The square head allows for direct tightening with a wrench, providing stable torque transmission and facilitating quick installation and removal.

 

Reliable Sealing: Adopts a double sealing structure with threaded sealing + gasket (optional), meeting the sealing requirements under high-pressure conditions and reducing the risk of leakage.

 

Robust Structure: Formed by forging process, the material has high density and excellent pressure and impact resistance, suitable for harsh industrial environments.

 

Strong Versatility: Complies with international general standards and can be used with ASME B16.11 series pipe fittings worldwide, offering high interchangeability.

ASME B16.11 Square Head Plug

ASME B16.11 Square Head Plug Dimension

Nominal size

Length

Square height

Width flats

Head diameter

Length

Hex height

Hex height

Hex height

DN

NPS

Amin

Bmin

Cmin

Emin

Dmin

Hmin

Gmin

Fmin

6

1/8

10

6

7

10

35

6

11

8

1/4

11

6

10

14

41

6

3

16

10

3/8

13

8

11

18

41

8

4

18

15

1/2

14

10

14

21

44

8

5

22

20

3/4

16

11

16

27

44

10

6

27

25

1

19

13

21

33

51

10

6

36

32

11/4

21

14

24

43

51

14

7

46

40

11/2

21

16

28

48

51

16

8

50

50

2

22

18

32

60

64

18

9

65

65

21/2

27

19

36

73

70

19

10

75

80

3

28

21

41

89

70

21

10

90

100

4

32

25

65

114

76

25

13

115

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