Metal Jacketed Gasket consists of a soft filler encapsulated in a metallic material. The filler material provides compressibility and resilience while the jacket confers compressive strength and blow out resistance.
Metal jacketed gasket is specially designed and widely used for heat exchangers, autoclaves, columns, pressure vessels, flue stacks, boilers, gas mains, valve bonnets, pumps and similar services.
Most of metal jacketed gaskets are supplied in circular form but they can be manufactured to other shapes to suit individual requirements.
Types
Common specifications
Common Brasses | 500 °F | Silver | 1200 °F |
Copper | 600 °F | Nickel | 1400 °F |
Aluminum | 800 °F | SS 430 | 1400 °F |
SS 304 | 1000 °F | Monel | 1500 °F |
SS 316 | 1000 °F | Stainless Steel, Type 309 SCb | 1600 °F |
Soft Iron, Low Carbon Steel | 1000 °F | SS 321 | 1600 °F |
Titanium | 1000 °F | SS 347 | 1600 °F |
SS 50 | 1150 °F | Inconel | 2000 °F |
SS 410 | 1200 °F | Hastelloy | 2000 °F |
Nominal Pipe Size (NPS) | Gasket Inside Diameter (ID) | 150 | 300 | 400 | 600 | 900 | 1500 | 2500 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
inch | inch | mm | inch | mm | inch | mm | inch | mm | Inch | mm | inch | mm | inch | mm | inch | mm |
1/2 | 0.88 | 22.4 | 1.75 | 44.5 | 2 | 50.8 | – | – | 2 | 50.8 | – | – | 2.38 | 60.5 | 2.63 | 66.8 |
3/4 | 1.13 | 28.7 | 2.13 | 54.1 | 2.5 | 63.5 | – | – | 2.5 | 63.5 | – | – | 2.63 | 66.8 | 2.88 | 73.2 |
1 | 1.5 | 38.1 | 2.5 | 63.5 | 2.75 | 69.9 | – | – | 2.75 | 69.9 | – | – | 3 | 76.2 | 3.25 | 82.6 |
1 1/4 | 1.88 | 47.8 | 2.88 | 73.2 | 3.13 | 79.5 | – | – | 3.13 | 79.5 | – | – | 3.38 | 85.9 | 4 | 101.6 |
1 1/2 | 2.13 | 54.1 | 3.25 | 82.6 | 3.63 | 92.2 | – | – | 3.63 | 92.2 | – | – | 3.75 | 95.3 | 4.5 | 114.3 |
2 | 2.88 | 73.2 | 4 | 101.6 | 4.25 | 108 | – | – | 4.25 | 108 | – | – | 5.5 | 139.7 | 5.63 | 143 |
2 1/2 | 3.38 | 85.9 | 4.75 | 120.7 | 5 | 127 | – | – | 5 | 127 | – | – | 6.38 | 162.1 | 6.5 | 165.1 |
3 | 4.25 | 108 | 5.25 | 133.4 | 5.75 | 146.1 | – | – | 5.75 | 146.1 | 6.5 | 165.1 | 6.75 | 171.5 | 7.63 | 193.8 |
4 | 5.19 | 131.8 | 6.75 | 171.5 | 7 | 177.8 | 6.88 | 174.8 | 7.5 | 190.5 | 8 | 203.2 | 8.13 | 206.5 | 9.13 | 231.9 |
5 | 6 | 152.4 | 7.63 | 193.8 | 8.38 | 212.9 | 8.25 | 209.6 | 9.38 | 238.3 | 9.63 | 244.6 | 9.88 | 251 | 10.88 | 276.4 |
6 | 7.5 | 190.5 | 8.63 | 219.2 | 9.75 | 247.7 | 9.63 | 244.6 | 10.38 | 263.7 | 11.25 | 285.8 | 11 | 279.4 | 12.38 | 314.5 |
8 | 9.38 | 238.3 | 10.88 | 276.4 | 12 | 304.8 | 11.88 | 301.8 | 12.5 | 317.5 | 14 | 355.6 | 13.75 | 349.3 | 15.13 | 384.3 |
10 | 11.25 | 285.8 | 13.25 | 336.6 | 14.13 | 358.9 | 14 | 355.6 | 15.63 | 397 | 17 | 431.8 | 17 | 431.8 | 18.63 | 473.2 |
12 | 13.5 | 342.9 | 16 | 406.4 | 16.5 | 419.1 | 16.38 | 416.1 | 17.88 | 454.2 | 19.5 | 495.3 | 20.38 | 517.7 | 21.5 | 546.1 |
14 | 14.75 | 374.7 | 17.63 | 447.8 | 19 | 482.6 | 18.88 | 479.6 | 19.25 | 489 | 20.38 | 517.7 | 22.63 | 574.8 | – | – |
16 | 16.75 | 425.5 | 20.13 | 511.3 | 21.13 | 536.7 | 21 | 533.4 | 22.13 | 562.1 | 22.5 | 571.5 | 25.13 | 638.3 | – | – |
18 | 19.25 | 489 | 21.5 | 546.1 | 23.38 | 593.9 | 23.25 | 590.6 | 24 | 609.6 | 25 | 635 | 27.63 | 701.8 | – | – |
20 | 21 | 533.4 | 23.75 | 603.3 | 25.63 | 651 | 25.38 | 644.7 | 26.75 | 679.5 | 27.38 | 695.5 | 29.63 | 752.6 | – | – |
24 | 25.25 | 641.4 | 28.13 | 714.5 | 30.38 | 771.7 | 30.13 | 765.3 | 31 | 787.4 | 32.88 | 835.2 | 35.38 | 898.7 | – | – |
Normal Pipe Size (NPS) | Inside Diameter (ID) | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
inch | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | |||
26 | 26.5 | 673.1 | 30.38 | 771.7 | 32.75 | 831.9 | 32.63 | 828.8 | 34 | 863.6 | 34.63 | 879.6 | |||
28 | 28.5 | 723.9 | 32.63 | 828.8 | 35.25 | 895.4 | 35 | 889 | 35.88 | 911.4 | 37.13 | 943.1 | |||
30 | 30.5 | 774.7 | 34.63 | 879.6 | 37.38 | 949.5 | 37.13 | 943.1 | 38.13 | 968.5 | 39.63 | 1006.6 | |||
32 | 32.5 | 825.5 | 36.88 | 936.8 | 39.5 | 1003.3 | 39.38 | 1000.3 | 40.13 | 1019.3 | 42.13 | 1070.1 | |||
34 | 34.5 | 876.3 | 38.88 | 987.6 | 41.5 | 1054.1 | 41.38 | 1051.1 | 42.13 | 1070.1 | 44.63 | 1133.6 | |||
36 | 36.5 | 927.1 | 41.13 | 1044.7 | 43.88 | 1114.6 | 43.88 | 1114.6 | 44.38 | 1127.3 | 47.13 | 1197.1 | |||
38 | 38.5 | 977.9 | 43.63 | 1108.2 | 41.38 | 1051.1 | 42.13 | 1070.1 | 43.38 | 1101.9 | 47.13 | 1197.1 | |||
40 | 40.5 | 1028.7 | 45.63 | 1159 | 43.75 | 1111.3 | 44.25 | 1124 | 45.38 | 1152.7 | 49.13 | 1247.9 | |||
42 | 42.5 | 1079.5 | 47.88 | 1216.2 | 45.75 | 1162.1 | 46.25 | 1174.8 | 47.88 | 1216.2 | 51.13 | 1298.7 | |||
44 | 44.5 | 1130.3 | 50.13 | 1273.3 | 47.88 | 1216.2 | 48.38 | 1228.9 | 49.88 | 1267 | 53.75 | 1365.3 | |||
46 | 46.5 | 1181.1 | 52.13 | 1324.1 | 50 | 1270 | 50.63 | 1286 | 52.13 | 1324.1 | 56.38 | 1432.1 | |||
48 | 48.5 | 1231.9 | 54.38 | 1381.3 | 52 | 1320.8 | 52.88 | 1343.2 | 54.63 | 1387.6 | 58.38 | 1482.9 | |||
50 | 50.5 | 1282.7 | 56.38 | 1432.1 | 54.13 | 1374.9 | 55.13 | 1400.3 | 56.88 | 1444.8 | - | - | |||
52 | 52.5 | 1333.5 | 58.63 | 1489.2 | 56.13 | 1425.7 | 57.13 | 1451.1 | 58.88 | 1495.6 | - | - | |||
54 | 54.5 | 1384.3 | 60.88 | 1546.4 | 58.63 | 1489.2 | 59.63 | 1514.6 | 61.13 | 1552.7 | - | - | |||
56 | 56.5 | 1435.1 | 63.13 | 1603.5 | 60.63 | 1540 | 61.63 | 1565.4 | 63.13 | 1603.5 | - | - | |||
58 | 58.5 | 1485.9 | 65.38 | 1660.7 | 62.63 | 1590.8 | 63.63 | 1616.2 | 65.38 | 1660.7 | - | - | |||
60 | 60.5 | 1536.7 | 67.38 | 1711.5 | 64.63 | 1641.6 | 66.13 | 1679.7 | 68.13 | 1730.5 | - | - |
Normal Pipe Size (NPS) | Inside Diameter (ID) | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
inch | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | ||||
26 | 26.5 | 673.1 | 28.44 | 722.4 | 30.25 | 768.4 | 29.25 | 743 | 30 | 762 | 32.88 | 835.2 | ||||
28 | 28.5 | 723.9 | 30.44 | 773.2 | 32.38 | 822.5 | 31.38 | 797.1 | 32.13 | 816.1 | 35.38 | 898.7 | ||||
30 | 30.5 | 774.7 | 32.44 | 824 | 34.75 | 882.7 | 33.63 | 854.2 | 34.5 | 876.3 | 37.63 | 955.8 | ||||
32 | 32.5 | 825.5 | 34.56 | 877.8 | 36.88 | 936.8 | 35.75 | 908.1 | 36.63 | 930.4 | 39.88 | 1013 | ||||
34 | 34.5 | 876.3 | 36.69 | 931.9 | 39 | 990.6 | 37.75 | 958.9 | 39.13 | 993.9 | 42.13 | 1070.1 | ||||
36 | 36.5 | 927.1 | 38.75 | 984.3 | 41.13 | 1044.7 | 40.13 | 1019.3 | 41.13 | 1044.7 | 44.13 | 1120.9 | ||||
38 | 38.5 | 977.9 | 41 | 1041.4 | 43.13 | 1095.5 | 42.13 | 1070.1 | 43.38 | 1101.9 | 47.13 | 1197.1 | ||||
40 | 40.5 | 1028.7 | 43 | 1092.2 | 45.13 | 1146.3 | 44.25 | 1124 | 45.38 | 1152.7 | 49.13 | 1247.9 | ||||
42 | 42.5 | 1079.5 | 45 | 1143 | 47.13 | 1197.1 | 46.25 | 1174.8 | 47.88 | 1216.2 | 51.13 | 1298.7 | ||||
44 | 44.5 | 1130.3 | 47 | 1193.8 | 49.13 | 1247.9 | 48.38 | 1228.9 | 49.88 | 1267 | 53.75 | 1365.3 | ||||
46 | 46.5 | 1181.1 | 49.31 | 1252.5 | 51.75 | 1314.5 | 50.63 | 1286 | 52.13 | 1324.1 | 56.38 | 1432.1 | ||||
48 | 48.5 | 1231.9 | 51.31 | 1303.3 | 53.75 | 1365.3 | 52.88 | 1343.2 | 54.63 | 1387.6 | 58.38 | 1482.9 | ||||
50 | 50.5 | 1282.7 | 53.31 | 1354.1 | 55.75 | 1416.1 | 55.13 | 1400.3 | 56.88 | 1444.8 | – | – | ||||
52 | 52.5 | 1333.5 | 55.31 | 1404.9 | 57.75 | 1466.9 | 57.13 | 1451.1 | 58.88 | 1495.6 | – | – | ||||
54 | 54.5 | 1384.3 | 57.5 | 1460.5 | 60.13 | 1527.3 | 59.63 | 1514.6 | 61.13 | 1552.7 | – | – | ||||
56 | 56.5 | 1435.1 | 59.5 | 1511.3 | 62.63 | 1590.8 | 61.63 | 1565.4 | 63.13 | 1603.5 | – | – | ||||
58 | 58.5 | 1485.9 | 62.06 | 1576.3 | 65.06 | 1652.5 | 63.63 | 1616.2 | 65.38 | 1660.7 | – | – | ||||
60 | 60.5 | 1536.7 | 64.06 | 1627.1 | 67.06 | 1703.3 | 66.13 | 1679.7 | 68.13 | 1730.5 | – | – |
Features
Classical applications