Exhaust Bellows For Caterpillar Engines
- Bellows: 0.01 or 0.012 321 S.S
- No. of Plys: 2
- Weld Ends: 0.05 304 SS or 0.05 321 SS
- Flanges: Carbon Steel Plate
Service Recommendations and Limits:
- Engine Exhaust Gases : 10 pig @1000 deg F
- Compression 1"
- Extension 1/2"
- Lateral Offset 1/4"
Where an in-place assembly with round flanges must be identified, and the diameters "A" & ”C" cannot be measured, the circumference of the bellows FLANGE, the number of flange bolt holes and the bellows length an be used for identification.
In the table, (NA) refers to “Natural Aspirated", (T) refers to “Turbocharged" and (TA) refers to Turbo-charged-Aftercooled" Engines.
Certain installations may be set up more than one way. See sketch above, and items marked ’ in the table.
Special designs such as Weld-Necks, V-Band Clamp Fittings and Mixed-Size Flanges can be furnished on special order. Please note A, 8, C, & E for non-standard units and combinations. Please note each end for A, 8, C, and E when ordering.
To prevent damage to turbochargers and bellows - Disconnect one flange and block airflow during all moving operations.
|BSI Part Number||Engine Number||ASSY TYPE||Nom. Pipe Size||OAL||Round Flange Type||Square Flange DIM||Flange thickness||No. of bolt holes||BSI Gasket Part Number||BSI Flange Part Number|
|969-722-0206||3208 (NA)||1||2.5||6||-||4 3/4||1/2||4||968-770-0221||968-788-0220|
|969-722-0412||3304 (T)||1||4||12||-||5 5/8||1/2||4||968-770-0421||968-788-0420|
|969-722-0412||3304 (NA)||1||4||12||-||5 5/8||1/2||4||968-770-0421||968-788-0420|
|969-722-0512||3306 (TA)||1||5||12||-||6 3/4||1/2||4||968-770-0521||968-788-0520|