Compressor design features and benefits
1. 1800rpm direct coupling allows use of full power rating of gas engines & eliminates belt losses
2. Extremely low vibration - requires no special foundations
3. SG Iron Castings - meet stringent environment regulations
4. Pressurized crankcase - eliminates gas venting
5. Compact 4 point mounting design – easy to package
6. Light weight components – easy on the serviceman
7. Uses SAE 40 lubricating oil - readily available at low cost
8. Lubrication by pressure fed crankcase oil – simplifies daily maintenance procedures (no separate reservoir)
9. Exclusive low friction cylinder treatment in certain cases with synthetic rings on all stages – low friction & long life
10. Efficient rod seals on high pressure throw – minimises crankcase oil migration to 3rd stage compression cylinder
11. “Single point” lubrication to significantly reduce wear on valves & rings while minimising oil losses in the gas stream providing “the right compromise”
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Principal Components
|
| Item |
Material |
Spec. |
Feature |
| Crankcase |
SG Iron |
40 barG |
gas tight, heavy duty heavily ribbed, single casting |
| Main Bearing |
Spherical Roller |
160 mm |
double row, self-aligning |
| Crankshaft |
SG Iron |
88.9 mm |
counter balanced & balanced to eliminate vibration |
| Crankshaft stroke |
|
82.55 mm |
1800 rpm allows direct coupling to engines / motors |
| Connecting Rods |
SG Iron |
|
rugged and tough with precision bearing shells |
| Wrist pin |
Hardened Steel |
63.5 mm |
full floating design, lower wear on bearings |
| Gudgeon Pin Bearing |
Bronze |
shell |
large bearing surface ensures long life |
| Crosshead Piston / Cylinder |
Gray Iron |
152.4 mm |
generous bearing face reduces heat load, low-friction coating |
| Piston Rod |
4140 Rc50 |
28 mm |
hard wearing surface for long life |
| Cylinders |
SG Iron |
as above |
non-cooled |
