JACKETED GASKET

Metal Jacketed Gaskets, as the name suggests, consist of a metallic outer shell with either a metallic or non-metallic compressed fiber filler. The filler material gives the gasket resilience, while the metal jacket protects the filler and resists pressures, temperatures and corrosion.

Metal Jacketed Gasket, as the name suggests, consist of a metallic outer shell with either a metallic or non-metallic compressed fiber filler. The filler material gives the gasket resilience, while the metal jacket protects the filler and resists pressures, temperatures and corrosion.

TYPE CODE
Single Jacketed Gasket LSJ
Double Jacketed Gasket LDJ
Double Jacketed Corrugated Gasket LDJC
Double Jacketed Double Shell Gasket LDJDS

 

METAL JACKEDTED GASKET METAL JACKETED GASKET
LeGiaSeal Single Jacketed Gaskets are used in air tool applications and engine applications where space is limited, gasket seating surfaces are narrow and relatively low compressive forces are available for seating the gasket. LeGiaSeal Double Jacketed Gaskets are probably the most commonly used style of gaskets in heat exchanger applications. They are also extensively used in standard flanges. Since most double jacketed gaskets are custom made, there is virtually no limit to size, shape or configuration. LeGiaSeal Double Jacketed Corrugated Gaskets are an improvement on a plain-jacketed gasket. The corrugations on the gasket will provide an additional labyrinth seal. Enhancing its compressive characteristics. Main sealing performance of double jacketed corrugated gasket still relies on the inner lap. LeGiaSeal Double-Jacketed Double-Shelled Gaskets are similar to the double jacketed gasket. But it uses two shells in the fabrication of the gasket instead of using a shell and a liner. It has the advantage of a double lap at both the ID and the OD of the gasket, adding greater stability to the gasket. The construction will withstand higher compressive loads. Double-shell gaskets are normally restricted to use in high pressure applications.

 

JACKET MATERIALS
Material Temperature (ºC)
Carbon Steel 540ºC
304 760ºC
316 760ºC
31803 300ºC
321 760ºC
Hastelloy C-276 1090ºC
Monel 400 820ºC
347 870ºC
Alloy 20 870ºC
N06625 1290ºC
N08800 1290ºC
Inconel 600 1290ºC
410 760ºC
Titan Gr.1 1090ºC

 

FILLER MATERIALS
Material Temperature (ºC)          
Graphite -212 to +500ºC
PTFE -120 to +450ºC
Ceramic -212 to +1100ºC
Non-Asbestos -120 to +450ºC

NOTE:

Filler Thickness: The filler thickness shall be a minium of 0.38mm

Jacket Thickness: The jacket metal thickness shall be a minium of 1.5mm

 

 

FEATURES

Suitable for narrow flanges, good blow-out resistance. The metal jacket covering the filler material prevents contamination, suitable for high temperatures, ensures high elasticity and recovery. Nearly any dimension and shape can be mode, economical &.perfect sealing stability, easy to handle and install.

 

CLASSICAL APPLICATIONS
Sealing of heat exchangers
Pipe flanges
Boilers and process equipment
Valve Bonnet Gasket
Autoclaves
High pressure oil field drilling and production equipment
Pressure vessels
Gas and chemical plants

 

METAL JACKETED GASKET

Flange Size (NPS) Gasket Inside Diameter (D1) [Note (1)] Gasket Outside Diameter (D2) by Pressure Class [Note (1)]
150# 300# 400# 600# 900# 1500# 2500#
1/2″ 22.4 44.5 50.8 [Note (2)] 50.8 [Note (2)] 60.5 66.8
3/4″ 28.7 54.1 63.5 [Note (2)] 63.5 [Note (2)] 66.8 73.2
1″ 38.1 63.5 69.9 [Note (2)] 69.9 [Note (2)] 76.2 82.6
1 1/4″ 47.8 73.2 79.5 [Note (2)] 79.5 [Note (2)] 85.9 101.6
1 1/2″ 54.1 82.6 92.2 [Note (2)] 92.2 [Note (2)] 95.3 114.3
2″ 73.2 101.6 108.0 [Note (2)] 108.0 [Note (2)] 139.7 143.0
2 1/2″ 85.9 120.7 127.0 [Note (2)] 127.0 [Note (2)] 162.1 165.1
3″ 108.0 133.4 146.1 [Note (2)] 146.1 165.1 171.5 193.8
4″ 131.8 171.5 177.8 174.8 190.5 203.2 206.5 231.9
5″ 152.4 193.8 212.9 209.6 238.3 244.6 251.0 276.4
6″ 190.5 219.2 247.7 244.6 263.7 285.8 279.4 314.5
8″ 238.3 276.4 304.8 301.8 317.5 355.6 349.3 384.3
10″ 285.8 336.6 358.9 355.6 397.0 431.8 431.8 473.2
12″ 342.9 406.4 419.1 416.1 454.2 495.3 517.7 546.1
14″ 374.7 447.8 482.6 479.6 489.0 517.7 574.8 [Note (2)]
16″ 425.5 511.3 536.7 533.4 562.1 571.5 638.3 [Note (2)]
18″ 489.0 546.1 593.9 590.6 609.6 635.0 701.8 [Note (2)]
20″ 533.4 603.3 651.0 644.7 679.5 695.5 752.6 [Note (2)]
24″ 641.4 714.5 771.7 765.3 787.4 835.2 898.7 [Note (2)]
Flange Size (NPS) Gasket Inside Diameter (D1) [Note (1)] Gasket Outside Diameter (D2) by Pressure Class [Note (1)]
150# 300# 400# 600# 900#
26 673.1 771.7 831.9 828.8 863.6 879.6
28 723.9 828.8 895.4 889.0 911.4 943.1
30 774.7 879.6 949.5 943.1 968.5 1006.6
32 825.5 936.8 1003.3 1000.3 1019.3 1070.1
34 876.3 987.6 1054.1 1051.1 1070.1 1133.6
36 927.1 1044.7 1114.6 1114.6 1127.3 1197.1
38 977.9 1108.2 1051.1 1070.1 1101.9 1197.1
40 1028.7 1159.0 1111.3 1124.0 1152.7 1247.9
42 1079.5 1216.2 1162.1 1174.8 1216.2 1298.7
44 1130.3 1273.3 1216.2 1228.9 1267.0 1365.3
46 1181.1 1324.1 1270.0 1286.0 1324.1 1432.1
48 1231.9 1381.3 1320.8 1343.2 1387.6 1482.9
50 1282.7 1432.1 1374.9 1400.3 1444.8 [Note (2)]
52 1333.5 1489.2 1425.7 1451.1 1495.6 [Note (2)]
54 1384.3 1546.4 1489.2 1514.6 1552.7 [Note (2)]
56 1435.1 1603.5 1540.0 1565.4 1603.5 [Note (2)]
58 1485.9 1660.7 1590.8 1616.2 1660.7 [Note (2)]
60 1536.7 1711.5 1641.6 1679.7 1730.5 [Note (2)]

Schedule of Standard Shapes For Heat Exchanger Gaskets. Other bar configurations available on request

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