| Application |
|
|
Used for cooling CNG inter-stage & discharge gas for a 3-stage 74 to 94 kW compressor package. Incorporates oil cooler. |
| Performance |
|
 |
No-maintenance rugged API oil field type cooler optimized for fan energy consumption & tube area while providing most efficient compression energy consumption, knockout of oil & condensates & lowest discharge gas temperature.
Discharge air between 70C & 100C above inlet air.
Discharge gas < 40C above discharge air temperature. |
| Installation Guide |
| Design Temp |
-29oC to +204oC |
| Electric Connection |
3 ph 380/440 volt |
| Mounting Location |
either vertical or horizontal |
| Inlet air |
general flow of dust free air across package into finned tubes |
| Outlet air ducting |
duct exhaust air away to prevent air re-circulation. Ducting size to be no smaller than 0.75m2 |
Advantages |
Experienced operators of water cooled systems know loss of efficiency over time due to corrosion & fouling of all water passages.
Water systems demand expensive ongoing water treatment, daily evaporation of up to 20% of water capacity, & provide an ideal breeding ground for bacteria etc.
Use of cooling towers in high humidity conditions severely reduces efficiency.
Fan powered by independent motor allows complete evacuation of compressor room air prior to startup of compressor. |
| Service Characteristics |
| Fan |
no maintenance as there are no bearings on this direct coupled model |
 |
| Motor |
6mthly light grease of bearings through grease nipples located on plenum exterior, with premium grade lithium based grease. |
| Fins & Tubes |
clean as required to remove dirt, grease and other foreign matter |
| Approvals and Ratings |
| Manufacturing |
ISO 9001, ASTM A179 |
| Design Codes |
API 661 |
| Parts and Materials |
| 1st Stage Coil Assy |
1st stage 3, 30 tube, 3 row |
| 2nd Stage Coil Assy |
2nd stage 3, 24 tube, 3 row |
| 3rd Stage Coil Assy |
3rd Stage 3, 24 tube, 3 row |
| Oil Cooler Coil Assy |
8 tube, 4 row |
| Header blocks |
solid drilled BQ plate with expanded tubes eliminates leakage normally caused by weld fracturing from vibration |
| Tubes |
Seamless carbon steel with helical aluminum L type, 6’ length |
| Fan |
Direct drive, 1000mm diameter |
| Fan Guard |
Galvanised mild steel |
| Plenum Assembly |
Mild steel, paint finish |
| Motor Ç |
EXD 4 kW |
