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For high-temperature performance,
turn up the heat with MBS682.The MBS682 is a narrow section, edge welded bellows seal for high temperature application. This seal incorporates a state of the art bellows design proven in thousands of applications around the world.
As its name implies, this bellows seal has been designed and tested per API 682 and is ideally suited for hot applications.
Advantages
- Complete resistance to temperatures to 800°F
- Superior face tracking reduces leakage and "coking"
- Bellows design minimizes variation in face load due to shaft expansion or face wear
- Resistant to abrasive particles in pumpage, no shaft / sleeve fretting
Operating Range
- Temperature: - 75°C to + 425°C / - 100°F to + 800°F (with flexible static packing)
- Pressure: Vacuum to 25 bar / 360 psi
- Speed: up to 25 m/s / 5,000 fpm up to 50 m/s / 10,000 fpm
-
For high-temperature performance,
turn up the heat with MBS682.The MBS682 is a narrow section, edge welded bellows seal for high temperature application. This seal incorporates a state of the art bellows design proven in thousands of applications around the world.
As its name implies, this bellows seal has been designed and tested per API 682 and is ideally suited for hot applications.
Recommended Applications
- Refining
- Power plant
- Chemical/Petrochemical industry
- Hot media
- Special rotating equipment
Materials
- Seal Face: Proprietary high grade carbon / silicon carbide
- Metal Components: Inconel® bellows with alloy 42 face housing, 316 SS adaptor. Other metal parts available upon request.
- Gaskets: Grafoil
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MBS682-2CW-CW (inches)
SEAL SIZE D1 (SHAFT SIZE) D2 LI L2 L3 L4 020 0.787 2.756 1.850 3.858 2.874 0.984 030 1.181 3.150 2.047 3.839 2.854 0.984 040 1.575 3.543 2.244 3.858 2.874 0.984 050 1.969 3.937 2.047 4.134 3.150 0.984 060 2.362 4.724 2.244 4.213 3.228 0.984 070 2.756 5.118 2.441 4.213 3.228 0.984 080 3.150 5.512 2.598 4.213 3.228 0.984 090 3.543 6.299 2.559 4.528 3.465 1.063 100 3.937 6.693 2.441 4.528 3.465 1.063 MBS682-2CW-CW (metric)
SEAL SIZE D1 (SHAFT SIZE) D2 LI L2 L3 L4 020 20 70 47 98 73 25 030 30 80 52 97.5 72.5 25 040 40 90 57 98 73 25 050 50 100 52 105 80 25 060 60 120 57 107 82 25 070 70 130 62 107 82 25 080 80 140 66 107 82 25 090 90 160 65 115 88 27 100 100 170 62 115 88 27 
MBS682-1CW-FX (inches)
SEAL SIZE D1 (SHAFT SIZE) D2 LI L2 L3 L4 020 0.787 2.756 1.850 2.520 1.535 0.984 030 1.181 3.150 2.165 2.520 1.535 0.984 040 1.575 3.543 2.244 2.520 1.535 0.984 050 1.969 3.937 2.047 2.559 1.575 0.984 060 2.362 4.724 2.244 2.559 1.575 0.984 070 2.756 5.118 2.441 2.559 1.575 0.984 080 3.150 5.512 2.598 2.559 1.575 0.984 090 3.543 6.299 2.402 2.835 1.772 1.063 100 3.937 6.693 2.441 2.835 1.772 1.063 MBS682-1CW-FX (metric)
SEAL SIZE D1 (SHAFT SIZE) D2 LI L2 L3 L4 020 20 70 47 64 39 25 030 30 80 55 64 39 25 040 40 90 57 64 39 25 050 50 100 52 65 40 25 060 60 120 57 65 40 25 070 70 130 62 65 40 25 080 80 140 66 65 40 25 090 90 160 61 72 45 27 100 100 170 62 72 45 27 
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Download Datasheet
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Basic Pressure Rating
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