Cooper-Bessemer Compressor Cylinder Assembly
Cooper-Bessemer Compressor Cylinder Assembly — CEBN-105-4 Frame (FM-2 Compressor), 13¼" x 10½", 700 PSIG
Listing Summary
Available for immediate sale is a Cooper-Bessemer Compressor Cylinder Assembly for the CEBN-105-4 frame, fitted to a Cooper-Bessemer FM-2 integral engine-compressor. This is a large, heavy-duty reciprocating compressor cylinder rated for 700 PSIG service at 247°F, with a 13¼-inch bore and 10½-inch stroke. The cylinder is palletized, wrapped in protective plastic sheeting, and stored indoors in a climate-controlled warehouse.
The Cooper-Bessemer FM-2 is a well-known integral engine-compressor widely used in natural gas gathering, transmission, and processing across North America. The CEBN-105-4 designation identifies the specific cylinder position on the FM-2 compressor frame. Spare cylinders for FM-2 frames are difficult to source and command strong prices in the aftermarket. This unit is a genuine OEM Cooper-Bessemer casting with full nameplate traceability.
Key Specifications
| Specification | Detail |
| Manufacturer | Cooper-Bessemer Company (Division of Cooper Industries, Inc.) |
| Compressor Model | Cooper-Bessemer FM-2 |
| Frame / Cylinder Designation | CEBN-105-4, Item 1 (Drawing C-1201) |
| Serial Number | 38484 |
| Bore x Stroke | 13¼" (13.25") x 10½" (10.5") |
| Max Working Pressure (MAWP) | 700 PSIG |
| Max Working Temperature | 247°F |
| Hydrostatic Test Pressure | 1,050 PSIG |
| Suction Pressure | ~8.8 PSIG gauge |
| Discharge Pressure | ~25 PSIG gauge |
| Max Relief Valve Setting | 700 PSI |
| Capacity | 3 MMCFD at 14.7 psi and 60°F |
| Normal Clearance — Overall | 10.7% |
| Normal Clearance — Head End | 17.0% |
| Customer Order No. | 444703-4-303 |
Typical Applications
The Cooper-Bessemer FM-2 integral engine-compressor is used extensively in:
•Natural gas gathering and transmission (pipeline compression)
•Gas processing plants (inlet compression, residue gas compression)
•Underground gas storage (injection and withdrawal compression)
•Petrochemical plants (process gas compression)
A spare cylinder assembly for a Cooper-Bessemer FM-2 / CEBN-105-4 frame is a critical maintenance item for any facility running this compressor. The FM-2 has an exceptionally long service life and many units remain in active service across North American gas fields, making spare cylinders highly sought after.