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// Design Conditions
Safe and Efficient Compression for LPG Loading & Unloading
The ZW-1.46/(0.1–1.42)–(0.4–1.72) is a high-performance, oil-free reciprocating compressor designed specifically for liquefied gas loading and unloading applications, such as LPG tank filling, truck unloading, and storage transfer. With a stable flow rate of 1.46 m³/min, this model offers reliable gas handling across a wide range of working pressures.
Inlet Pressure: 0.1–1.42 MPa (G)
Exhaust Pressure: 0.4–1.72 MPa (G)
Medium: LPG, Propane, Butane, or similar liquefied gases
Flow Rate: 1.46 m³/min
This compressor is built to operate in hazardous environments, where safety and gas purity are essential. Its oil-free design ensures clean compression with no risk of contamination, making it suitable for downstream petrochemical or energy processes. The compressor features high-integrity sealing systems to prevent gas leakage, especially critical when dealing with flammable gases.
The ZW-1.46 unit is integrated with a PLC-based automated control system for real-time monitoring, fault detection, and fully automated operation. It is skid-mounted and compact, simplifying on-site installation and integration into your existing process system.
Key Features:
Safe, oil-free compression for liquefied gases
High gas-tightness to eliminate leakage risks
PLC intelligent control system for stable and automatic operation
Corrosion-resistant construction for long-term reliability
Skid-mounted structure for fast deployment
Widely used in LPG terminals, chemical plants, and gas stations
// Main technical parameters
| No. | Item | Content | |
| 1 | Model | ZW-1.46/(1-14.2)-(4-17.2) | |
| 2 | Medium | Liquefied petroleum gas (LPG) | |
| 3 | Structure Type | Vertical, double-acting, air-cooled, oil-free lubrication, reciprocating piston type | |
| 4 | Compression Stages | Single-stage compression, single-row | |
| 5 | Nominal Volume Flow (m³/min) | 1.46 | |
| 6 | Suction Pressure (MPa.G) | 0.1-1.42 | |
| 7 | Discharge Pressure (MPa.G) | 0.4-1.72 | |
| 8 | Suction Temperature (°C) | ≤40 | |
| 9 | Discharge Temperature (°C) | ≤110 | |
| 11 | Compressor Speed (r/min) | 740 | |
| 13 | Drive Motor | YB3-225M-8, 22kW, 740r, ExdIICT4, IP55, B3, 380V, 50Hz | |
| 14 | Starting Method | Direct start | |
| 19 | Lubrication Method | Crankshaft, connecting rod, crosshead | Pressure lubrication |
| Cylinder, packing | Oil-free lubrication | ||
| 20 | Oil Pump Pressure (MPa) | ≈0.15-0.60 | |
| 21 | Transmission Method | Tire coupling | |
| 22 | Installation Method | Fixed, with foundation | |
| 23 | Noise Level (dB(A)) | ≤85 | |
| 24 | Vibration Intensity (mm/s) | ≤28 | |
| 26 | Lubricating Oil Type | Ambient temperature >5°C | Mechanical lubricating oil L-DAB150 |
| Ambient temperature <5°C | Mechanical lubricating oil L-DAB100 | ||
| 28 | Automatic Control | The unit control cabinet supports direct start, explosion-proof PLC control, touch screen display, RS485 communication interface, enabling remote monitoring of operation and alarm information, and remote control. Protections include motor overload/short circuit; low oil pressure, high discharge temperature, low suction pressure, and high discharge pressure of the compressor, with display, alarm, and shutdown functions. | |
| 29 | Dimensions (L×W×H, mm) | Approx. 2500×1600×1700 (subject to actual design) | |
| 30 | Weight (kg) | Approx. 2500 | |
| 29 | Dimensions (L×W×H, mm) | Approx. 2500×1600×1700 (subject to actual design) | |
| 30 | Weight (kg) | Approx. 2500 | |
