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)