CNG Hydraulic Reciprocating Daughter Station Compressor

Compressor Model​

TY-Z-S-2500(1600)

TY-Z-D-1250(800)

Inlet Pressure​

2~20 MPa

2~20 MPa

Outlet Pressure​

≤25 MPa

≤25 MPa

Average Displacement​

2500 Nm³/h (1600 Nm³/h)

1250 Nm³/h (800 Nm³/h)

Compressor Type​

Vertical Double-Cylinder

Vertical Single-Cylinder

Compression Stages​

Two-Stage

Two-Stage

Compression Medium​

Natural Gas

Natural Gas

Lubrication Method​

Oil-Free Lubrication

Oil-Free Lubrication

Installation Method​

Skid-Mounted

Skid-Mounted

Dimensions (L×W×H)​

4.2×2.3×2.5 m

4.2×2.3×2.5 m

Drive Method​

Motor-Driven Hydraulic Pump

Motor-Driven Hydraulic Pump

Control Method​

PLC + Touch Screen + Soft Start

PLC + Touch Screen + Soft Start

Rated Discharge Pressure​

25 MPa

25 MPa

Noise Level​

≤75 dB

≤75 dB

Discharge Temperature​

No more than ambient temperature +5℃

No more than ambient temperature +5℃

Inlet Temperature​

≤40℃

≤40℃

Cooling Method​

Water Cooling & Air Cooling Mixed

Water Cooling & Air Cooling Mixed

Total Power​

95 kW (77 kW)

50 kW (40 kW)

Lower Energy Consumption​

Hydraulic drive delivers higher efficiency than direct-coupled motor-driven mechanical transmission, eliminating belt and gear losses, with overall energy efficiency improved by 15%–25%.

Smooth & Continuous Discharge​

Constant thrust output from the hydraulic system ensures uniform piston reciprocating speed, minimizing discharge pulsation and reducing pipeline surge.

Stable Operation at Low Inlet Pressure​

Capable of processing low-pressure gas from tube trailers at 2–3 MPa without requiring additional pre-boost equipment.

Two-Stage Compression with Controlled Temperature Rise​

Interstage cooling combined with hybrid water/air cooling keeps discharge temperature ≤ ambient temperature +5°C, extending seal service life.

Lower Maintenance Cost​

Eliminates crankshaft and connecting rod mechanisms, minimizing moving parts. Wear-prone components are reduced by approximately 60% compared to conventional mechanical piston compressors.

Oil-Free Lubrication Design​

Cylinders operate without lubricating oil contamination, ensuring high-purity CNG output. This reduces the burden on downstream dehydration and desulfurization systems, lowering overall operating costs.

Reduced Civil Works Cost​

Fully skid-mounted design requires only a concrete foundation pad. No large-scale building structures are needed, enabling outdoor installation and eliminating substantial construction investment.

Plug-and-Play Deployment​

Each skid undergoes full pre-commissioning at the factory. On-site connection to power and gas lines is all that's required to commence operation, cutting deployment time by over 70%.