Metraloop Expansion Joint

Metraloop

The Metraloop is called an expansion joint, but it is really much more dynamic then a typical expansion joint. The typical Metraloop installation is axial for thermal applications, or in any possible direction for seismic applications.  And when we say…

Product Description

Product Highlights

Additional Resources

Submittals

Product Description

The Metraloop is called an expansion joint, but it is really much more dynamic then a typical expansion joint.

The typical Metraloop installation is axial for thermal applications, or in any possible direction for seismic applications.  And when we say any possible direction that includes axial, lateral and angular.  Piping systems are used to convey hot water, chilled water, steam, condensate, potable water, fire sprinkler lines, gas lines, waste lines, and the list keeps going.  What all these applications have in common is that they all would benefit from a Metraloop.

The Metraloop utilizes the time-tested hose and braid technology, installed perpendicular to the pipeline.  Like all the products in the Metraloop family of products, the Metraloop does not develop thrust loads and this results in almost eliminating the need for guides, simplifying anchor design when compared to in line bellows expansion joints.  When you place a Metraloop in your line, you instantly reduce the stresses in the line.

Options

  • Liners for high velocity or abrasive material
  • Exterior coatings for protection in corrosive environments.
  • Double braided for high pressure or steam applications.
  • Any fitting that can be welded or brazed to can be used.
  • Higher pressure versions available
    • Refer to table for temperature and pressure ratings

Product Highlights

  • Absorbs both thermal growth and seismic movement in piping systems
  • Does not develop thrust loads like in line bellows, resulting in very low anchor loads and guiding requirements.
  • It takes up less space and takes less time to install than a hard pipe loop.
  • Capable of movement in all directions
  • Available in stock and custom configuration up to 36” diameter
  • Metraloops can be designed for movements 60” and more.
  • The smart solution for all pipe movement requirements.
  • UL, FM, UPC, IAPMO and CSA listed models available
  • Proudly made in the USA

Additional Resources

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Metraloop Catalog

Metraloop Product Catalog

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Pressure Loss Data

Metraflex Metraloop Pressure Drop Charts

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Configurations

Metraloop Configurations

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O&M For Seismic Applications

Seismic Metraloop Installation Instructions

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Spec Sheet

Metraloop with Carbon Steel or Stainless Steel Fittings

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METRALOOP - STANDARD - SWEAT ENDS

Group 8 Created with Sketch.

PIPE
SIZE
MODEL # MOVEMENT END TO
END
LENGTH PSI
SINGLE
BRAID
†PSI
DOUBLE
BRAID
*SPRING
FORCE
LBS.
WEIGHT
LBS.
3D DRAWING
1/2″       (15mm) MLS30050 ±1.5″ 7-3/4″ 11-1/2″ 706 1130 45 2 Revit/CAD
MLS80050 ±4″ 7-/34″ 15-3/8″ 2.5 Revit/CAD
3/4″       (20mm) MLS30075 ±1.5″ 9-1/2″ 13-1/8″ 577 923 47 2 Revit/CAD
MLS80075 ±4″ 9-1/2″ 17-1/4″ 2.5 Revit/CAD
1″          (25mm) MLS30100 ±1.5″ 10-1/4″ 14-5/8″ 470 752 53 2.5 Revit/CAD
MLS80100 ±4″ 10-1/4″ 19-1/4″ 3 Revit/CAD
1-1/4″     (30mm) MLS30125 ±1.5″ 11-1/8″ 16-3/8″ 361 577 66 3.5 Revit/CAD
MLS80125 ±4″ 11-1/8″ 21-3/8″ 4 Revit/CAD
1-1/2″     (40mm) MLS30150 ±1.5″ 11-5/8″ 17-1/4″ 329 526 70 4 Revit/CAD
MLS80150 ±4″ 11-5/8″ 22-1/2″ 4.5 Revit/CAD
2″          (50mm) MLS30200 ±1.5″ 13-3/8″ 18-3/4″ 317 507 78 9 Revit/CAD
MLS80200 ±4″ 13-3/8″ 24-3/4″ 12 Revit/CAD
2-1/2″     (65mm) MLS30250 ±1.5″ 15″ 19-3/4″ 272 435 83 12 Revit/CAD
MLS80250 ±4″ 17″ 26-1/2″ 18 Revit/CAD
3″          (80mm) MLS30300 ±1.5″ 16″ 21-1/2″ 201 322 90 18 Revit/CAD
MLS80300 ±4″ 18-1/2″ 28-1/2″ 24 Revit/CAD
4″        (100mm) MLS30400 ±1.5″ 20″ 24-3/4″ 142 227 120 26 Revit/CAD
MLS80400 ±4″ 22″ 32″ 31 Revit/CAD


† When ordering a Metraloop with double-braid, please include the letter “D” at the end of the Model #. Example: MLW30200D
* Spring Force: These values reflect the total force required to move the Metraloop its full rated movement for 150 P.S.I. at 70 F.
For higher pressures please contact Metraflex.
** Loops are available in half sections for ease of handling and shipping. If this option is selected add half inch to the “end to end” dimension.

METRALOOP - STANDARD - THREAD ENDS

Group 8 Created with Sketch.

PIPE
SIZE
MODEL # MOVEMENT END TO
END
LENGTH PSI
SINGLE
BRAID
†PSI
DOUBLE
BRAID
MAX
SATURATED
STEAM
PRESS.
*SPRING
FORCE
LBS.
WEIGHT
LBS.
3D DRAWING
1/2″       (15mm) MLT30050 ±1.5″ 12″ 10-1/4″ 1075 1720 300 45 3 Revit/CAD
MLT80050 ±4″ 15″ 15-5/8″ 5.5 Revit/CAD
3/4″       (20mm) MLT30075 ±1.5″ 12-1/4″ 10-3/4″ 792 1267 300 47 3 Revit/CAD
MLT80075 ±4″ 15-1/4″ 17-1/2″ 5.5 Revit/CAD
1″          (25mm) MLT30100 ±1.5″ 12″ 12″ 571 914 300 53 5 Revit/CAD
MLT80100 ±4″ 16″ 18-5/8″ 8 Revit/CAD
1-1/4″     (30mm) MLT30125 ±1.5″ 13-1/2″ 13-3/8″ 531 850 300 66 7 Revit/CAD
MLT80125 ±4″ 16-3/4″ 20″ 10 Revit/CAD
1-1/2″     (40mm) MLT30150 ±1.5″ 15″ 14-3/4″ 472 755 300 70 10.5 Revit/CAD
MLT80150 ±4″ 17-1/2″ 21-1/4″ 14.5 Revit/CAD
2″          (50mm) MLT30200 ±1.5″ 18″ 17-3/8″ 500 750 300 78 15 Revit/CAD
MLT80200 ±4″ 20″ 24/1/2″ 18 Revit/CAD
2-1/2″     (65mm) MLT30250 ±1.5″ 21″ 21″ 387 619 300 83 23 Revit/CAD
MLT80250 ±4″ 21-1/2″ 28-1/4″ 29 Revit/CAD
3″          (80mm) MLT30300 ±1.5″ 26″ 23-3/8″ 288 431 216 90 39 Revit/CAD
MLT80300 ±4″ 26″ 30″ 43 Revit/CAD
4″        (100mm) MLT30400 ±1.5″ 32″ 28″ 232 371 186 120 55 Revit/CAD
MLT80400 ±4″ 32″ 35-3/8″ 59 Revit/CAD


† When ordering a Metraloop with double-braid, please include the letter “D” at the end of the Model #. Example: MLW30200D
* Spring Force: These values reflect the total force required to move the Metraloop its full rated movement for 150 P.S.I. at 70 F.
For higher pressures please contact Metraflex.
** Loops are available in half sections for ease of handling and shipping. If this option is selected add half inch to the “end to end” dimension.

METRALOOP - STANDARD - 150# FLANGED ENDS

Group 8 Created with Sketch.

PIPE
SIZE
MODEL # MOVEMENT END TO
END
LENGTH PSI
SINGLE
BRAID
†PSI
DOUBLE
BRAID
MAX
SATURATED
STEAM
PRESS.
*SPRING
FORCE
LBS.
WEIGHT
LBS.
3D DRAWING
2″ (50mm) MLF30200 ±1.5″ 12-1/2″ 17-3/8″ 285 285 300 78 21 Revit/CAD
MLF80200 ±4″ 14-1/2″ 24-1/2″ 24 Revit/CAD
2-1/2″ (65mm) MLF30250 ±1.5″ 15-1/2″ 21″ 285 258 300 83 30 Revit/CAD
MLF80250 ±4″ 16″ 28-1/4″ 36 Revit/CAD
3″ (80mm) MLF30300 ±1.5″ 18-1/2″ 23-3/8″ 285 285 216 90 46 Revit/CAD
MLF80300 ±4″ 18-1/2″ 30″ 50 Revit/CAD
4″ (100mm) MLF30400 ±1.5″ 24-1/2″ 28″ 232 285 183 120 63 Revit/CAD
MLF80400 ±4″ 24-1/2″ 35-3/8″ 69 Revit/CAD
5″ (125mm) MLF30500 ±1.5″ 30-1/2″ 32-1/4″ 191 285 153 186 91 Revit/CAD
MLF80500 ±4″ 30-1/2″ 40-1/4″ 101 Revit/CAD
6″ (150mm) MLF30600 ±1.5″ 36-1/2″ 36-3/4″ 165 264 132 202 148 Revit/CAD
MLF80600 ±4″ 36-1/2″ 45-3/8″ 163 Revit/CAD
8″ (200mm) MLF30800 ±1.5″ 48-1/2″ 44-1/2″ 212 230 115 260 287 Revit/CAD
MLF80800 ±4″ 48-1/2″ 53-1/2″ 309 Revit/CAD
10″ (250mm) MLF31000 ±1.5″ 60-1/2″ 53-1/4″ 175 200 100 283 453 Revit/CAD
MLF81000 ±4″ 60-1/2″ 63-1/4″ 484 Revit/CAD
12″ (300mm) MLF31200 ±1.5″ 72-1/2″ 61-3/4″ 160 188 94 390 636 Revit/CAD
MLF81200 ±4″ 72-1/2″ 72-3/4″ 666 Revit/CAD
14″ (355mm) MLF31400 ±1.5″ 84-1/2″ 71″ 110 125 63 706 636 Revit/CAD
MLF81400 ±4″ 84-1/2″ 80.5″ 666 Revit/CAD
16″ ** (400mm) MLF31600 ±1.5″ 96-1/2″ 78.5″ 110 170 85 900 636 Revit/CAD
MLF81600 ±4″ 96-1/2″ 91.5″ 666 Revit/CAD
18″ ** (455mm) MLF31800 ±1.5″ 108-1/2″ 86.5″ 85 150 75 1000 636 Revit/CAD
MLF81800 ±4″ 108-1/2″ 100″ 666 Revit/CAD


† When ordering a Metraloop with double-braid, please include the letter “D” at the end of the Model #. Example: MLW30200D
* Spring Force: These values reflect the total force required to move the Metraloop its full rated movement for 150 P.S.I. at 70 F.
For higher pressures please contact Metraflex.
** Loops are available in half sections for ease of handling and shipping. If this option is selected add half inch to the “end to end” dimension.

METRALOOP - STANDARD - WELD ENDS

Group 8 Created with Sketch.

PIPE
SIZE
MODEL # MOVEMENT END TO
END
LENGTH PSI
SINGLE
BRAID
†PSI
DOUBLE
BRAID
MAX
SATURATED
STEAM
PRESS.
*SPRING
FORCE
LBS.
WEIGHT
LBS.
3D DRAWING
1/2″       (15mm) MLW30050 ±1.5″ 6″ 10-1/4″ 1075 1720 300 45 2.5 Revit/CAD
MLW80050 ±4″ 9″ 15-5/8″ 5 Revit/CAD
3/4″       (20mm) MLW30075 ±1.5″ 5-1/4″ 10-3/4″ 792 1267 300 47 2.5 Revit/CAD
MLW80075 ±4″ 9-1/4″ 17-1/2″ 5 Revit/CAD
1″          (25mm) MLW30100 ±1.5″ 6″ 12″ 571 914 300 53 4 Revit/CAD
MLW80100 ±4″ 10″ 18-5/8″ 7 Revit/CAD
1-1/4″     (30mm) MLW30125 ±1.5″ 7-1/2″ 13-3/8″ 531 850 300 66 6 Revit/CAD
MLW80125 ±4″ 10-3/4″ 20″ 9 Revit/CAD
1-1/2″     (40mm) MLW30150 ±1.5″ 9″ 14-3/4″ 472 755 300 70 9 Revit/CAD
MLW80150 ±4″ 11-1/2″ 21-1/4″ 13 Revit/CAD
2″          (50mm) MLW30200 ±1.5″ 12″ 17-3/8″ 500 750 300 78 13 Revit/CAD
MLW80200 ±4″ 14″ 24-1/2″ 16 Revit/CAD
2-1/2″     (65mm) MLW30250 ±1.5″ 15″ 21″ 387 619 300 83 20 Revit/CAD
MLW80250 ±4″ 15-1/2″ 28-1/4″ 26 Revit/CAD
3″          (80mm) MLW30300 ±1.5″ 18″ 23-3/8″ 288 431 216 90 35 Revit/CAD
MLW80300 ±4″ 18″ 30″ 39 Revit/CAD
4″        (100mm) MLW30400 ±1.5″ 24″ 28″ 232 371 186 120 48 Revit/CAD
MLW80400 ±4″ 24″ 35-3/8″ 54 Revit/CAD
5″        (125mm) MLW30500 ±1.5″ 30″ 32-1/4″ 191 306 153 186 81 Revit/CAD
MLW80500 ±4″ 30″ 40-1/4″ 91 Revit/CAD
6″        (150mm) MLW30600 ±1.5″ 36″ 36-3/4″ 165 264 132 202 125 Revit/CAD
MLW80600 ±4″ 36″ 45-3/8″ 140 Revit/CAD
8″        (200mm) MLW30800 ±1.5″ 48″ 44-1/2″ 212 230 115 260 245 Revit/CAD
MLW80800 ±4″ 48″ 53-1/2″ 267 Revit/CAD
10″       (250mm) MLW31000 ±1.5″ 60″ 53-1/4″ 175 200 100 383 403 Revit/CAD
MLW81000 ±4″ 60″ 63-1/4″ 434 Revit/CAD
12″       (300mm) MLW31200 ±1.5″ 72″ 61-3/4″ 160 188 94 390 556 Revit/CAD
MLW81200 ±4″ 72″ 72-3/4″ 586 Revit/CAD


† When ordering a Metraloop with double-braid, please include the letter “D” at the end of the Model #. Example: MLW30200D
* Spring Force: These values reflect the total force required to move the Metraloop its full rated movement for 150 P.S.I. at 70 F.
For higher pressures please contact Metraflex.
** Loops are available in half sections for ease of handling and shipping. If this option is selected add half inch to the “end to end” dimension.

METRALOOP - STANDARD - GROOVED ENDS

Group 8 Created with Sketch.

PIPE
SIZE
MODEL # MOVEMENT FACE TO
FACE
LENGTH PSI
SINGLE
BRAID
†PSI
DOUBLE
BRAID
*SPRING
FORCE
LBS.
WEIGHT
LBS.
3D DRAWING
2″          (50mm) MLG30200 ±1.5″ 18″ 17-3/8″ 500 750 78 15 Revit/CAD
MLG80200 ±4″ 20″ 24-1/2″ 18 Revit/CAD
2-1/2″     (65mm) MLG30250 ±1.5″ 21″ 21″ 387 619 83 23 Revit/CAD
MLG80250 ±4″ 21-1/2″ 28-1/4″ 29 Revit/CAD
3″          (80mm) MLG30300 ±1.5″ 24″ 23-3/8″ 288 431 90 39 Revit/CAD
MLG80300 ±4″ 24″ 30″ 43 Revit/CAD
4″        (100mm) MLG30400 ±1.5″ 30″ 28″ 232 371 120 54 Revit/CAD
MLG80400 ±4″ 30″ 35-3/8″ 60 Revit/CAD
5″        (125mm) MLG30500 ±1.5″ 36″ 32-1/4″ 191 306 186 89 Revit/CAD
MLG80500 ±4″ 36″ 40-1/4″ 99 Revit/CAD
6″        (150mm) MLG30600 ±1.5″ 42″ 36-3/4″ 165 264 202 135 Revit/CAD
MLG80600 ±4″ 42″ 45-3/8″ 150 Revit/CAD
8″        (200mm) MLG30800 ±1.5″ 56″ 44-1/2″ 212 230 260 264 Revit/CAD
MLG80800 ±4″ 56″ 53-1/2″ 286 Revit/CAD
10″       (250mm) MLG31000 ±1.5″ 68″ 53-1/4″ 175 200 283 430 Revit/CAD
MLG81000 ±4″ 68″ 63-1/4″ 461 Revit/CAD
12″       (300mm) MLG31200 ±1.5″ 80″ 61-3/4″ 160 188 390 592 Revit/CAD
MLG81200 ±4″ 80″ 72-3/4″ 622 Revit/CAD


† When ordering a Metraloop with double-braid, please include the letter “D” at the end of the Model #. Example: MLW30200D
* Spring Force: These values reflect the total force required to move the Metraloop its full rated movement for 150 P.S.I. at 70 F.
For higher pressures please contact Metraflex.
** Loops are available in half sections for ease of handling and shipping. If this option is selected add half inch to the “end to end” dimension.

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