Double Metragator

double-gator-bg

Externally pressurized metal expansion joint

The MetraGator solves the problem of long axial travel for expansion joints. The Double MetraGator handles movements of 4″ + 4″, 6″ + 6″ and 8″ + 8″. They are available in 150 and 300 psi models.

Maximum Working Pressure: 150 or 300 psi

Maximum Working Temperature: 850°F

Test Pressure: 225/450 psi

Bellows: 2-Ply T304 S/S

metragator-diagram

Externally Pressurized Dual Expansion Joint 150 lb Flanged

150 PSIG at 850 deg F.
CS Body, 304 SS Bellows

Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D110A0200 2″ 4″ + 4″ 388 12.00 70 CS Body, 304 SS Bellows 5.63 43.25 CAD
MEPB12D110A0200 6″ + 6″ 260 95 61.25 CAD
MEPB16D110A0200 8″ + 8″ 194 112 75.25 CAD
MEPB08D110A0250 2.5″ 4″ + 4″ 388 12.00 79 CS Body, 304 SS Bellows 5.63 43.25 CAD
MEPB12D110A0250 6″ + 6″ 260 106 61.25 CAD
MEPB16D110A0250 8″ + 8″ 194 126 75.25 CAD
MEPB08D110A0300 3″ 4″ + 4″ 504 16.00 98 CS Body, 304 SS Bellows 6.63 41.25 CAD
MEPB12D110A0300 6″ + 6″ 380 120 54.25 CAD
MEPB16D110A0300 8″ + 8″ 252 154 71.25 CAD
MEPB08D110A0400 4″ 4″ + 4″ 850 30.00 153 CS Body, 304 SS Bellows 8.63 42.50 CAD
MEPB12D110A0400 6″ + 6″ 566 188 56.00 CAD
MEPB16D110A0400 8″ + 8″ 424 242 73.75 CAD
MEPB08D110A0500 5″ 4″ + 4″ 1002 42.00 200 CS Body, 304 SS Bellows 10.75 40.25 CAD
MEPB12D110A0500 6″ + 6″ 668 242 52.50 CAD
MEPB16D110A0500 8″ + 8″ 501 286 64.75 CAD
MEPB08D110A0600 6″ 4″ + 4″ 1140 53.00 222 CS Body, 304 SS Bellows 10.75 40.25 CAD
MEPB12D110A0600 6″ + 6″ 760 268 52.50 CAD
MEPB16D110A0600 8″ + 8″ 570 316 64.75 CAD
Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D110A0800 8″ 4″ + 4″ 2424 83.00 320 CS Body, 304 SS Bellows 12.75 42.50 CAD
MEPB12D110A0800 6″ + 6″ 1616 414 55.75 CAD
MEPB16D110A0800 8″ + 8″ 1212 490 69.00 CAD
MEPB08D110A1000 10″ 4″ + 4″ 3266 135.00 450 CS Body, 304 SS Bellows 16.00 45.25 CAD
MEPB12D110A1000 6″ + 6″ 2177 554 59.50 CAD
MEPB16D110A1000 8″ + 8″ 1633 706 78.00 CAD
MEPB08D110A1200 12″ 4″ + 4″ 3491 182.00 583 CS Body, 304 SS Bellows 18.00 47.25 CAD
MEPB12D110A1200 6″ + 6″ 2327 717 62.50 CAD
MEPB16D110A1200 8″ + 8″ 1745 907 81.75 CAD
MEPB08D110A1400 14″ 4″ + 4″ 2656 212.00 709 CS Body, 304 SS Bellows 20.00 47.50 CAD
MEPB12D110A1400 6″ + 6″ 1770 857 62.75 CAD
MEPB16D110A1400 8″ + 8″ 1328 1069 82.00 CAD
MEPB08D110A1600 16″ 4″ + 4″ 2850 276.00 774 CS Body, 304 SS Bellows 22.00 48.00 CAD
MEPB12D110A1600 6″ + 6″ 1900 940 63.25 CAD
MEPB16D110A1600 8″ + 8″ 1424 1176 82.50 CAD

Externally Pressurized Dual Expansion Joint 150 lb Grooved End

Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D132A0200 2″ 4″ + 4″ 388 12.00 60 CS Body, 304 SS Bellows 5.63 39.50 CAD
MEPB12D132A0200 6″ + 6″ 260 85 57.25 CAD
MEPB16D132A0200 8″ + 8″ 194 102 71.50 CAD
MEPB08D132A0250 2.5″ 4″ + 4″ 388 12.00 65 CS Body, 304 SS Bellows 5.63 39.50 CAD
MEPB12D132A0250 6″ + 6″ 260 92 57.25 CAD
MEPB16D132A0250 8″ + 8″ 194 112 71.50 CAD
MEPB08D132A0300 3″ 4″ + 4″ 504 16.00 82 CS Body, 304 SS Bellows 6.63 37.50 CAD
MEPB12D132A0300 6″ + 6″ 380 104 50.25 CAD
MEPB16D132A0300 8″ + 8″ 252 138 67.50 CAD
MEPB08D132A0400 4″ 4″ + 4″ 850 30.00 127 CS Body, 304 SS Bellows 8.63 38.75 CAD
MEPB12D132A0400 6″ + 6″ 566 162 52.00 CAD
MEPB16D132A0400 8″ + 8″ 424 216 70.00 CAD
MEPB08D132A0500 5″ 4″ + 4″ 1002 42.00 170 CS Body, 304 SS Bellows 10.75 36.00 CAD
MEPB12D132A0500 6″ + 6″ 668 212 48.00 CAD
MEPB16D132A0500 8″ + 8″ 501 296 60.50 CAD
MEPB08D132A0600 6″ 4″ + 4″ 1140 53.00 184 CS Body, 304 SS Bellows 10.75 36.25 CAD
MEPB12D132A0600 6″ + 6″ 760 230 48.25 CAD
MEPB16D132A0600 8″ + 8″ 570 278 60.75 CAD
Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D132A0800 8″ 4″ + 4″ 2424 83.00 260 CS Body, 304 SS Bellows 12.75 38.25 CAD
MEPB12D132A0800 6″ + 6″ 1616 354 51.25 CAD
MEPB16D132A0800 8″ + 8″ 1212 430 64.75 CAD
MEPB08D132A1000 10″ 4″ + 4″ 3266 135.00 364 CS Body, 304 SS Bellows 16.00 40.50 CAD
MEPB12D132A1000 6″ + 6″ 2177 468 54.75 CAD
MEPB16D132A1000 8″ + 8″ 1633 620 73.25 CAD
MEPB08D132A1200 12″ 4″ + 4″ 3491 182.00 455 CS Body, 304 SS Bellows 18.00 42.25 CAD
MEPB12D132A1200 6″ + 6″ 2327 589 57.25 CAD
MEPB16D132A1200 8″ + 8″ 1745 779 76.75 CAD
MEPB08D132A1400 14″ 4″ + 4″ 2656 212.00 529 CS Body, 304 SS Bellows 20.00 42.25 CAD
MEPB12D132A1400 6″ + 6″ 1770 677 57.25 CAD
MEPB16D132A1400 8″ + 8″ 1328 889 76.75 CAD
MEPB08D132A1600 16″ 4″ + 4″ 2850 276.00 574 CS Body, 304 SS Bellows 22.00 42.25 CAD
MEPB12D132A1600 6″ + 6″ 1900 740 57.25 CAD
MEPB16D132A1600 8″ + 8″ 1424 976 76.75 CAD

Externally Pressurized Dual Expansion Joint 150 lb Weld End

Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D130A0200 2″ 4″ + 4″ 388 12.00 60 CS Body, 304 SS Bellows 5.63 39.50 CAD
MEPB12D130A0200 6″ + 6″ 260 85 57.25 CAD
MEPB16D130A0200 8″ + 8″ 194 102 71.50 CAD
MEPB08D130A0250 2.5″ 4″ + 4″ 388 12.00 65 CS Body, 304 SS Bellows 5.63 39.50 CAD
MEPB12D130A0250 6″ + 6″ 260 92 57.25 CAD
MEPB16D130A0250 8″ + 8″ 194 112 71.50 CAD
MEPB08D130A0300 3″ 4″ + 4″ 504 16.00 82 CS Body, 304 SS Bellows 6.63 37.50 CAD
MEPB12D130A0300 6″ + 6″ 380 104 50.25 CAD
MEPB16D130A0300 8″ + 8″ 252 138 67.50 CAD
MEPB08D130A0400 4″ 4″ + 4″ 850 30.00 127 CS Body, 304 SS Bellows 8.63 38.75 CAD
MEPB12D130A0400 6″ + 6″ 566 162 52.00 CAD
MEPB16D130A0400 8″ + 8″ 424 216 70.00 CAD
MEPB08D130A0500 5″ 4″ + 4″ 1002 42.00 170 CS Body, 304 SS Bellows 10.75 36.00 CAD
MEPB12D130A0500 6″ + 6″ 668 212 48.00 CAD
MEPB16D130A0500 8″ + 8″ 501 296 60.50 CAD
MEPB08D130A0600 6″ 4″ + 4″ 1140 53.00 184 CS Body, 304 SS Bellows 10.75 36.25 CAD
MEPB12D130A0600 6″ + 6″ 760 230 48.25 CAD
MEPB16D130A0600 8″ + 8″ 570 278 60.75 CAD
Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D130A0800 8″ 4″ + 4″ 2424 83.00 260 CS Body, 304 SS Bellows 12.75 38.25 CAD
MEPB12D130A0800 6″ + 6″ 1616 354 51.25 CAD
MEPB16D130A0800 8″ + 8″ 1212 430 64.75 CAD
MEPB08D130A1000 10″ 4″ + 4″ 3266 135.00 364 CS Body, 304 SS Bellows 16.00 40.50 CAD
MEPB12D130A1000 6″ + 6″ 2177 468 54.75 CAD
MEPB16D130A1000 8″ + 8″ 1633 620 73.25 CAD
MEPB08D130A1200 12″ 4″ + 4″ 3491 182.00 455 CS Body, 304 SS Bellows 18.00 42.25 CAD
MEPB12D130A1200 6″ + 6″ 2327 589 57.25 CAD
MEPB16D130A1200 8″ + 8″ 1745 779 76.75 CAD
MEPB08D130A1400 14″ 4″ + 4″ 2656 212.00 529 CS Body, 304 SS Bellows 20.00 42.25 CAD
MEPB12D130A1400 6″ + 6″ 1770 677 57.25 CAD
MEPB16D130A1400 8″ + 8″ 1328 889 76.75 CAD
MEPB08D130A1600 16″ 4″ + 4″ 2850 276.00 574 CS Body, 304 SS Bellows 22.00 42.25 CAD
MEPB12D130A1600 6″ + 6″ 1900 740 57.25 CAD
MEPB16D130A1600 8″ + 8″ 1424 976 76.75 CAD

Externally Pressurized Dual Expansion Joint 300 lb Flanged

300 PSIG at 850 deg F.

Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D310A0200 2″ 4″ + 4″ 388 12.00 76 CS Body, 304 SS Bellows 5.63 43.50 CAD
MEPB12D310A0200 6″ + 6″ 260 103 61.50 CAD
MEPB16D310A0200 8″ + 8″ 194 123 75.50 CAD
MEPB08D310A0250 2.5″ 4″ + 4″ 388 12.00 87 CS Body, 304 SS Bellows 5.63 43.50 CAD
MEPB12D310A0250 6″ + 6″ 260 117 61.50 CAD
MEPB16D310A0250 8″ + 8″ 194 138 75.50 CAD
MEPB08D310A0300 3″ 4″ + 4″ 504 16.00 110 CS Body, 304 SS Bellows 6.63 41.75 CAD
MEPB12D310A0300 6″ + 6″ 380 134 54.75 CAD
MEPB16D310A0300 8″ + 8″ 252 172 71.75 CAD
MEPB08D310A0400 4″ 4″ + 4″ 850 30.00 177 CS Body, 304 SS Bellows 8.63 46.25 CAD
MEPB12D310A0400 6″ + 6″ 566 215 56.75 CAD
MEPB16D310A0400 8″ + 8″ 424 275 74.50 CAD
MEPB08D310A0500 5″ 4″ + 4″ 1002 42.00 230 CS Body, 304 SS Bellows 10.75 40.75 CAD
MEPB12D310A0500 6″ + 6″ 668 276 53.00 CAD
MEPB16D310A0500 8″ + 8″ 501 322 65.25 CAD
MEPB08D310A0600 6″ 4″ + 4″ 1140 53.00 270 CS Body, 304 SS Bellows 10.75 41.50 CAD
MEPB12D310A0600 6″ + 6″ 760 318 53.75 CAD
MEPB16D310A0600 8″ + 8″ 570 368 66.00 CAD
Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D310A0800 8″ 4″ + 4″ 2424 83.00 416 CS Body, 304 SS Bellows 12.75 44.00 CAD
MEPB12D310A0800 6″ + 6″ 1616 492 57.25 CAD
MEPB16D310A0800 8″ + 8″ 1212 574 70.50 CAD
MEPB08D310A1000 10″ 4″ + 4″ 3266 135.00 540 CS Body, 304 SS Bellows 16.00 46.75 CAD
MEPB12D310A1000 6″ + 6″ 2177 651 61.25 CAD
MEPB16D310A1000 8″ + 8″ 1633 816 79.50 CAD
MEPB08D310A1200 12″ 4″ + 4″ 3491 182.00 741 CS Body, 304 SS Bellows 18.00 49.75 CAD
MEPB12D310A1200 6″ + 6″ 2327 881 65.00 CAD
MEPB16D310A1200 8″ + 8″ 1745 1085 84.25 CAD
MEPB08D310A1400 14″ 4″ + 4″ 2656 212.00 1003 CS Body, 304 SS Bellows 20.00 50.00 CAD
MEPB12D310A1400 6″ + 6″ 1770 1193 65.25 CAD
MEPB16D310A1400 8″ + 8″ 1328 1471 84.50 CAD
MEPB08D310A1600 16″ 4″ + 4″ 2850 276.00 944 CS Body, 304 SS Bellows 22.00 50.75 CAD
MEPB12D310A1600 6″ + 6″ 1900 1158 66.00 CAD
MEPB16D310A1600 8″ + 8″ 1424 1468 85.25 CAD

Externally Pressurized Dual Expansion Joint 300 lb Grooved End

Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D332A0200 2″ 4″ + 4″ 388 12.00 62 CS Body, 304 SS Bellows 5.63 39.50 CAD
MEPB12D332A0200 6″ + 6″ 260 89 57.25 CAD
MEPB16D332A0200 8″ + 8″ 194 109 71.50 CAD
MEPB08D332A0250 2.5″ 4″ + 4″ 388 12.00 67 CS Body, 304 SS Bellows 5.63 39.50 CAD
MEPB12D332A0250 6″ + 6″ 260 97 57.25 CAD
MEPB16D332A0250 8″ + 8″ 194 118 71.50 CAD
MEPB08D332A0300 3″ 4″ + 4″ 504 16.00 82 CS Body, 304 SS Bellows 6.63 37.50 CAD
MEPB12D310A0300 6″ + 6″ 380 134 54.75 CAD
MEPB16D332A0300 8″ + 8″ 252 146 67.50 CAD
MEPB08D332A0400 4″ 4″ + 4″ 850 30.00 133 CS Body, 304 SS Bellows 8.63 38.75 CAD
MEPB12D332A0400 6″ + 6″ 566 171 52.00 CAD
MEPB16D332A0400 8″ + 8″ 424 231 70.00 CAD
MEPB08D332A0500 5″ 4″ + 4″ 1002 42.00 174 CS Body, 304 SS Bellows 10.75 36.00 CAD
MEPB12D332A0500 6″ + 6″ 668 220 48.00 CAD
MEPB16D332A0500 8″ + 8″ 501 266 60.50 CAD
MEPB08D332A0600 6″ 4″ + 4″ 1140 53.00 192 CS Body, 304 SS Bellows 10.75 36.25 CAD
MEPB12D332A0600 6″ + 6″ 760 240 48.25 CAD
MEPB16D332A0600 8″ + 8″ 570 290 60.75 CAD
Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D332A0800 8″ 4″ + 4″ 2424 83.00 294 CS Body, 304 SS Bellows 12.75 38.25 CAD
MEPB12D332A0800 6″ + 6″ 1616 376 51.25 CAD
MEPB16D332A0800 8″ + 8″ 1212 458 64.75 CAD
MEPB08D332A1000 10″ 4″ + 4″ 3266 135.00 378 CS Body, 304 SS Bellows 16.00 40.50 CAD
MEPB12D332A1000 6″ + 6″ 2177 489 54.75 CAD
MEPB16D332A1000 8″ + 8″ 1633 654 73.25 CAD
MEPB08D332A1200 12″ 4″ + 4″ 3491 182.00 511 CS Body, 304 SS Bellows 18.00 42.75 CAD
MEPB12D332A1200 6″ + 6″ 2327 651 57.75 CAD
MEPB16D332A1200 8″ + 8″ 1745 855 77.25 CAD
MEPB08D332A1400 14″ 4″ + 4″ 2656 212.00 673 CS Body, 304 SS Bellows 20.00 42.75 CAD
MEPB12D332A1400 6″ + 6″ 1770 863 57.75 CAD
MEPB16D332A1400 8″ + 8″ 1328 1141 77.25 CAD
MEPB08D332A1600 16″ 4″ + 4″ 2850 276.00 750 CS Body, 304 SS Bellows 22.00 42.75 CAD
MEPB12D332A1600 6″ + 6″ 1900 964 57.75 CAD
MEPB16D332A1600 8″ + 8″ 1424 1274 77.25 CAD

Externally Pressurized Dual Expansion Joint 300 lb Weld End

Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D330A0200 2″ 4″ + 4″ 388 12.00 62 CS Body, 304 SS Bellows 5.63 39.50 CAD
MEPB12D330A0200 6″ + 6″ 260 89 57.25 CAD
MEPB16D330A0200 8″ + 8″ 194 109 71.50 CAD
MEPB08D330A0250 2.5″ 4″ + 4″ 388 12.00 67 CS Body, 304 SS Bellows 5.63 39.50 CAD
MEPB12D330A0250 6″ + 6″ 260 97 57.25 CAD
MEPB16D330A0250 8″ + 8″ 194 118 71.50 CAD
MEPB08D330A0300 3″ 4″ + 4″ 504 16.00 82 CS Body, 304 SS Bellows 6.63 37.50 CAD
MEPB12D330A0300 6″ + 6″ 380 106 50.25 CAD
MEPB16D330A0300 8″ + 8″ 252 146 67.50 CAD
MEPB08D330A0400 4″ 4″ + 4″ 850 30.00 133 CS Body, 304 SS Bellows 8.63 38.75 CAD
MEPB12D330A0400 6″ + 6″ 566 171 52.00 CAD
MEPB16D330A0400 8″ + 8″ 424 231 70.00 CAD
MEPB08D330A0500 5″ 4″ + 4″ 1002 42.00 174 CS Body, 304 SS Bellows 10.75 36.00 CAD
MEPB12D330A0500 6″ + 6″ 668 220 48.00 CAD
MEPB16D330A0500 8″ + 8″ 501 266 60.50 CAD
MEPB08D330A0600 6″ 4″ + 4″ 1140 53.00 192 CS Body, 304 SS Bellows 10.75 36.25 CAD
MEPB12D330A0600 6″ + 6″ 760 240 48.25 CAD
MEPB16D330A0600 8″ + 8″ 570 290 60.75 CAD
Metraflex Part No. Pipe Size Compression Spring Rate
Lbs / In.
Effective Area
In2
Weight
(lbs)
Material Casing
Diameter
OAL 3D DRAWING
MEPB08D330A0800 8″ 4″ + 4″ 2424 83.00 294 CS Body, 304 SS Bellows 12.75 38.25 CAD
MEPB12D330A0800 6″ + 6″ 1616 376 51.25 CAD
MEPB16D330A0800 8″ + 8″ 1212 458 64.75 CAD
MEPB08D330A1000 10″ 4″ + 4″ 3266 135.00 378 CS Body, 304 SS Bellows 16.00 40.50 CAD
MEPB12D330A1000 6″ + 6″ 2177 489 54.75 CAD
MEPB16D330A1000 8″ + 8″ 1633 654 73.25 CAD
MEPB08D330A1200 12″ 4″ + 4″ 3491 182.00 511 CS Body, 304 SS Bellows 18.00 42.75 CAD
MEPB12D330A1200 6″ + 6″ 2327 651 57.75 CAD
MEPB16D330A1200 8″ + 8″ 1745 855 77.25 CAD
MEPB08D330A1400 14″ 4″ + 4″ 2656 212.00 673 CS Body, 304 SS Bellows 20.00 42.75 CAD
MEPB12D330A1400 6″ + 6″ 1770 863 57.75 CAD
MEPB16D330A1400 8″ + 8″ 1328 1141 77.25 CAD
MEPB08D330A1600 16″ 4″ + 4″ 2850 276.00 750 CS Body, 304 SS Bellows 22.00 42.75 CAD
MEPB12D330A1600 6″ + 6″ 1900 964 57.75 CAD
MEPB16D330A1600 8″ + 8″ 1424 1274 77.25 CAD