LPG COMPRESSOR
1. General Description
The LPG Compressor is a heavy-duty, positive-displacement or dynamic compression system designed for liquefied petroleum gas (LPG), propane, butane, and other hydrocarbon vapors. It ensures safe, efficient, and reliable compression in:
- LPG bottling plants
- Refineries & petrochemical facilities
- Bulk storage terminals
- Industrial fuel gas systems
2. Design Standards & Certifications
- ASME PTC 10 (Performance Test Code for Compressors)
- API 618 (Reciprocating Compressors for Petroleum, Chemical, and Gas Industry Services)
- ATEX / IECEx (Explosion-proof certification for hazardous zones)
- PED 2014/68/EU (Pressure Equipment Directive)
- ISO 1217 (Displacement compressors – Acceptance tests)
3. Performance Parameters
|
Parameter |
Specification |
|
Type |
Reciprocating / Screw / Centrifugal (selectable) |
|
Capacity |
50–5,000 m³/h (adjustable per stage) |
|
Inlet Pressure |
0.1–1.5 MPa (14.5–217.5 psi) |
|
Discharge Pressure |
Up to 3.0 MPa (435 psi) |
|
Compression Ratio |
2:1 to 10:1 (multi-stage available) |
|
Speed |
900–3,600 RPM (variable-speed drive optional) |
|
Power Rating |
15–500 kW (electric/diesel-driven) |
|
Flow Control |
VFD / Load-Unload / Bypass Valve |
4. Material Construction
- Cylinders/Block: Cast iron / Ductile iron / Stainless steel (SS 316)
- Pistons/Rotors: Anodized aluminum / Coated steel
- Valves: PEEK / Stainless steel (non-slamming design)
- Seals: Double mechanical seals with leak detection
- Lubrication: Forced-feed oil system (ISO 100–220 grade)
5. Safety & Control Features
✔ Explosion-proof motor (Ex d/e)
✔ High-temperature shutdown sensor
✔ Vibration monitoring & auto-shutdown
✔ Pressure relief valves (ASME Section VIII)
✔ Gas leak detection system
✔ Oil pressure & level safeguards
6. Operating Conditions
- Gas Temperature Range: -40°C to +120°C
- Ambient Temperature: -20°C to +50°C
- Relative Humidity: Up to 95% (non-condensing)
7. Optional Features
- Air-cooled / Water-cooled intercoolers
- Noise reduction enclosures (<75 dB)
- Remote IoT monitoring (SCADA integration)
- Custody transfer metering (MID certified)
- Skid-mounted / Portable configurations
8. Maintenance & Service Life
- Mean Time Between Failure (MTBF): >50,000 hours
- Recommended Service Interval: 5,000–8,000 hours
- Major Overhaul Period: 5–7 years
9. Compliance & Testing
- Hydrostatic test: 1.5x max working pressure
- Performance test: As per ISO 5389 (Turbo) / ISO 1217 (Positive Displacement)
- Third-party inspection: DNV / TÜV / Lloyds (available on request)
