The MetraPak

Metal Expansion Joints

The Metraflex MetraPak is a packed expansion joint.  This unique design is capable of absorbing large amounts of axial movement (up to 12” for single joints and 24” for dual joints) in pipelines and process systems, reducing the number of…

Product Description

Product Highlights

Additional Resources

Submittals

Product Description

The Metraflex MetraPak is a packed expansion joint.  This unique design is capable of absorbing large amounts of axial movement (up to 12” for single joints and 24” for dual joints) in pipelines and process systems, reducing the number of joints and anchors. Ideal for high pressure or high temperature applications.

The MetraPak packed expansion joints can handle higher pressures and temperatures than other types of expansion joints.

The Metraflex engineering and manufacturing teams can produce customized packed expansion joints tailor made for your application.

This time-tested packed expansion design allows for repacking while the joint is in service.

Product Highlights

  • MetraPak packed expansion joints can handle higher pressures and temperatures than other expansion joints.
  • MetraPak packed expansion joints can handle larger amounts of thermal movement than other expansion joints, allowing the reduction of anchor points.
  • MetraPak packed expansion joints can be customized with anchor bases and branch service.
  • MetraPak packed expansion joints can be repacked while in service.
  • Meets ASTM F-2934 and ASTM F 1007.
  • Proudly made in the USA.

SINGLE METRAPAK - FLANGED ENDS - 150 LBS

Group 8 Created with Sketch.

Size A-Movement
4″
A-Movement
8″
A-Movement
12″
B C D
1 1/4 18 7/8 26 7/8 34 7/8 3 5/8 5 3/16 8 1/16
1 1/2 19 27 35 3 3/4 5 1/4 8 1/8
2 19 1/4 27 1/4 35 1/4 4 1/8 5 9/16 8 7/16
2 1/2 19 1/4 27 1/2 35 1/2 4 1/2 5 7/8 8 3/4
3 21 7/8 29 7/8 37 7/8 4 7/8 6 1/4 9 1/8
3 1/2 22 30 38 5 1/4 6 1/2 9 3/8
4 22 1/8 30 1/8 38 1/8 5 1/2 6 3/4 9 5/8
5 22 5/8 30 5/8 38 5/8 6 1/4 7 3/8 10 1/4
6 23 31 39 7 7 7/8 10 3/4
8 23 3/8 31 3/8 39 3/8 8 3/8 8 3/4 11 5/8
10 23 3/4 31 3/8 39 3/8 8 3/8 8 3/4 11 5/8
12 24 1/2 32 1/2 40 1/2 11 11 13 4/5
14 27 1/4 35 1/4 43 1/4 11 1/2 11 3/4 14 5/8
16 27 7/8 35 7/8 43 7/8 12 3/4 12 3/4 15 5/8
18 28 3/8 36 3/8 44 3/8 13 1/2 13 3/4 16 5/8
20 28 3/4 36 3/4 44 3/4 14 3/4 14 3/4 17 5/8
24 29 1/2 37 1/2 45 1/2 17 16 3/4 19 5/8

SINGLE METRAPAK - FLANGED ENDS - 300 LBS

Group 8 Created with Sketch.

Size A-Movement
4″
A-Movement
8″
A-Movement
12″
B C D
1 1/4 19 3/8 27 3/8 35 3/8 3 5/8 6 11/16 9 1/2
1 1/2 19 5/8 27 5/8 35 5/8 3 3/4 6 3/4 9 9/16
2 19 3/4 27 3/4 35 3/4 4 1/8 7 1/16 9 7/8
2 1/2 20 1/8 28 1/8 36 1/8 5 7 3/8 10 3/16
3 22 3/4 30 3/4 38 3/4 4 7/8 7 3/4 10 9/16
3 1/2 22 7/8 30 7/8 38 7/8 5 1/4 8 10 3/16
4 23 1/4 31 1/4 39 1/4 5 1/2 8 1/4 11 1/16
5 23 3/4 31 3/4 39 3/4 6 1/4 8 7/8 11 11/16
6 24 32 40 7 9 3/8 12 3/16
8 24 3/4 32 3/4 40 3/4 8 3/8 10 1/4 13 1/16
10 25 1/8 33 1/8 41 1/8 9 3/4 11 3/8 14 3/16
12 25 7/8 33 7/8 41 7/8 11 12 7/16 15 1/4
14 28 3/4 36 3/4 44 3/4 12 1/2 13 1/4 16 1/16
16 29 3/8 37 3/8 45 3/8 13 1/2 14 1/4 17 1/16
18 30 38 46 15 15 1/4 18 1/16
20 30 1/2 38 1/2 46 1/2 16 1/4 16 1/4 19 1/16
24 31 3/8 39 3/8 47 3/8 19 18 1/4 21 1/16

SINGLE METRAPAK - WELD ENDS - 150 LBS

Group 8 Created with Sketch.

Size A-Movement
4″
A-Movement
8″
A-Movement
12″
B C D
1 1/4 23 3/8 31 3/8 39 3/8 3 5/8 5 3/16 8 1/16
1 1/2 23 7/8 31 7/8 39 7/8 3 3/4 5 1/4 8 1/8
2 23 7/8 31 7/8 39 7/8 4 1/8 5 9/16 8 7/16
2 1/2 24 3/8 32 3/8 40 3/8 4 1/2 5 7/8 8 3/4
3 21 7/8 29 7/8 37 7/8 4 7/8 6 1/4 9 1/8
3 1/2 22 30 38 5 1/4 6 1/2 9 3/8
4 22 1/8 30 1/8 38 1/8 5 1/2 6 3/4 9 5/8
5 22 5/8 30 5/8 38 5/8 6 1/4 7 3/8 10 1/4
6 23 31 39 7 7 7/8 10 3/4
8 23 3/8 31 3/8 39 3/8 8 3/8 8 3/4 11 5/8
10 23 3/4 31 3/8 39 3/8 8 3/8 8 3/4 11 5/8
12 24 1/2 32 1/2 40 1/2 11 11 13 4/5
14 27 1/4 35 1/4 43 1/4 11 1/2 11 3/4 14 5/8
16 27 7/8 35 7/8 43 7/8 12 3/4 12 3/4 15 5/8
18 28 3/8 36 3/8 44 3/8 13 1/2 13 3/4 16 5/8
20 28 3/4 36 3/4 44 3/4 14 3/4 14 3/4 17 5/8
24 29 1/2 37 1/2 45 1/2 17 16 3/4 19 5/8

SINGLE METRAPAK - WELD ENDS - 300 LBS

Group 8 Created with Sketch.

Size A-Movement
4″
A-Movement
8″
A-Movement
12″
B C D
1 1/4 23 3/8 31 3/8 39 3/8 3 5/8 6 11/16 9 1/2
1 1/2 23 7/8 31 7/8 39 7/8 3 3/4 6 3/4 9 9/16
2 23 7/8 31 7/8 39 7/8 4 1/8 7 1/16 9 7/8
2 1/2 24 3/8 32 3/8 40 3/8 4 1/2 7 3/8 10 3/16
3 26 5/8 34 5/8 42 5/8 4 7/8 7 3/4 10 9/16
3 1/2 27 5/8 35 5/8 43 5/8 5 1/4 8 10 13/16
4 27 3/4 35 3/4 43 3/4 5 1/2 8 1/4 11 1/16
5 28 1/2 36 1/2 44 1/2 6 1/4 8 7/8 11 11/16
6 27 1/8 35 1/8 43 1/8 7 9 3/8 12 3/16
8 27 1/8 35 1/8 43 1/8 8 3/8 10 1/4 13 1/16
10 27 1/8 35 1/8 43 1/8 9 3/4 11 3/8 14 3/16
12 27 3/8 35 3/8 43 3/8 11 12 7/16 15 1/4
14 30 38 46 12 1/2 13 1/4 16 1/16
16 30 1/8 38 1/8 46 1/8 13 1/2 14 1/4 17 1/16
18 30 1/4 38 1/4 46 1/4 15 15 1/4 18 1/16
20 30 1/4 38 1/4 46 1/4 16 1/4 16 1/4 19 1/16
24 30 1/4 38 1/4 46 1/4 19 18 1/4 21 1/16

DOUBLE METRAPAK - FLANGED ENDS - 150 LBS

Group 8 Created with Sketch.

Size A-Movement
4″
A-Movement
8″
A-Movement
12″
B C D
1 1/4 34 7/8 50 7/8 66 7/8 3 5/8 5 3/16 8 1/16
1 1/2 35 51 67 3 3/4 5 1/4 8 1/8
2 35 3/8 51 3/8 67 3/8 4 1/8 5 9/16 8 7/16
2 1/2 35 5/8 51 5/8 67 5/8 4 1/2 5 7/8 8 3/4
3 40 1/4 56 1/4 72 1/4 4 7/8 6 1/4 9 1/8
3 1/2 40 1/4 56 1/4 72 1/4 5 1/4 6 1/2 9 3/8
4 40 1/4 56 1/4 72 1/4 5 1/2 6 3/4 9 5/8
5 41 1/8 57 1/8 73 1/8 6 1/4 7 3/8 10 1/4
6 41 3/8 57 3/8 73 3/8 7 7 7/8 10 3/4
8 41 3/4 57 3/4 73 3/4 8 3/8 8 3/4 11 5/8
10 42 1/8 58 1/8 74 1/8 9 3/4 9 7/8 12 3/4
12 43 1/4 59 1/4 75 1/4 11 10 15/16 13 13/16
14 48 1/8 64 1/8 80 1/8 11 1/2 11 3/4 14 5/8
16 49 1/4 65 1/4 81 1/4 12 3/4 12 3/4 15 5/8
18 49 5/8 65 5/8 81 5/8 13 1/2 13 3/4 15 5/8
20 50 66 82 14 3/4 14 3/4 17 5/8
24 50 3/4 66 3/4 82 3/4 17 16 3/4 19 5/8

DOUBLE METRAPAK - FLANGED ENDS - 300 LBS

Group 8 Created with Sketch.

Size A-Movement
4″
A-Movement
8″
A-Movement
12″
B C D
1 1/4 35 3/8 51 3/8 67 3/8 3 5/8 6 11/16 9 1/2
1 1/2 35 3/4 51 3/4 67 3/4 3 3/4 6 3/4 9 9/16
2 35 3/4 51 3/4 67 3/4 4 1/8 7 1/16 9 7/8
2 1/2 36 1/8 52 1/8 68 1/8 4 1/2 7 3/8 10 3/16
3 41 57 73 4 7/8 7 3/4 10 9/16
3 1/2 41 1/8 57 1/8 73 1/8 5 1/4 8 10 13/16
4 41 3/8 57 3/8 73 3/8 5 1/2 8 1/4 11 1/16
5 42 1/4 58 1/4 74 1/4 6 1/4 8 7/8 11 11/16
6 42 3/8 58 3/8 74 3/8 7 9 3/8 12 3/16
8 43 1/8 59 1/8 75 1/8 8 3/8 10 1/4 13 1/16
10 43 1/2 59 1/2 75 1/2 9 3/4 11 3/8 14 3/16
12 44 5/8 60 5/8 76 5/8 11 12 7/16 15 1/4
14 49 5/8 65 5/8 81 5/8 12 1/2 13 1/4 16 1/16
16 50 3/4 66 3/4 82 3/4 13 1/2 14 1/4 17 1/16
18 51 1/4 67 1/4 83 1/4 15 15 1/4 18 1/16
20 51 3/4 67 3/4 83 3/4 16 1/4 16 1/4 19 1/16
24 52 5/8 68 5/8 84 5/8 19 18 1/4 21 1/16

DOUBLE METRAPAK - WELD ENDS -150 LBS

Group 8 Created with Sketch.

Size A-Traverse
4″
A-Traverse
8″
A-Traverse
12″
B C D
1 1/4 39 5/8 55 5/8 71 5/8 3 5/8 5 3/16 8 1/16
1 1/2 39 5/8 55 5/8 71 5/8 3 3/4 5 1/4 8 1/8
2 39 5/8 55 5/8 71 5/8 4 1/8 5 9/16 8 7/16
2 1/2 39 5/8 55 5/8 71 5/8 4 1/2 5 7/8 8 3/4
3 44 1/8 60 1/8 76 1/8 4 7/8 6 1/4 9 1/8
3 1/2 44 1/8 60 1/8 76 1/8 5 1/4 6 1/2 9 3/8
4 44 1/8 60 1/8 76 1/8 5 1/2 6 3/4 9 5/8
5 44 3/4 60 3/4 76 3/4 6 1/4 7 3/8 10 3/4
6 44 3/4 60 3/4 76 3/4 7 7 7/8 10 3/4
8 44 3/4 60 3/4 76 3/4 8 3/8 8 3/4 11 5/8
10 44 3/4 60 3/4 76 3/4 9 3/4 9 7/8 12 3/4
12 45 3/8 61 3/8 77 3/8 11 10 15/16 13 13/16
14 50 1/8 66 1/8 82 1/8 11 1/2 11 3/4 14 5/8
16 50 3/4 66 3/4 82 3/4 12 3/4 12 3/4 15 5/8
18 50 3/4 66 3/4 82 3/4 13 1/2 13 3/4 16 5/8
20 50 3/4 66 3/4 82 3/4 14 3/4 14 3/4 17 5/8
24 50 3/4 66 3/4 82 3/4 17 16 3/4 19 5/8

DOUBLE METRAPAK - WELD ENDS - 300 LBS

Group 8 Created with Sketch.

Size A-Traverse
4″
A-Traverse
8″
A-Traverse
12″
B C D
1 1/4 39 5/8 55 5/8 71 5/8 3 5/8 6 11/16 9 1/2
1 1/2 39 5/8 55 5/8 71 5/8 3 3/4 6 3/4 9 9/16
2 39 5/8 55 5/8 71 5/8 4 1/8 7 1/16 9 7/8
2 1/2 39 5/8 55 5/8 71 5/8 4 1/2 7 3/8 10 3/16
3 44 1/8 60 1/8 76 1/8 4 7/8 6 1/4 9 1/8
3 1/2 44 1/8 60 1/8 76 1/8 5 1/4 6 1/2 9 3/8
4 44 1/8 60 1/8 76 1/8 5 1/2 8 1/4 11 1/6
5 44 3/4 60 3/4 76 3/4 6 1/4 8 7/8 11 11/16
6 44 3/4 60 3/4 76 3/4 7 9 3/8 12 3/16
8 44 3/4 60 3/4 76 3/4 8 3/8 10 1/4 13 1/16
10 44 3/4 60 3/4 76 3/4 9 3/4 11 3/8 14 3/16
12 45 3/8 61 3/8 77 3/8 11 12 7/16 15 1/4
14 50 1/8 66 1/8 82 1/8 12 1/2 13 1/4 16 1/16
16 50 3/4 66 3/4 82 3/4 13 1/2 14 1/4 17 1/16
18 50 3/4 66 3/4 82 3/4 15 15 1/4 18 1/16
20 50 3/4 66 3/4 82 3/4 16 1/4 16 1/4 19 1/16
24 50 3/4 66 3/4 82 3/4 19 18 1/4 21 1/16

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