V-4/250 Large Displacement Air-Cooled High-Pressure Air Compressor

This machine mainly consists of a compressor unit, electric motor, common base frame, air circuit system, open water cooling system, lubrication system, instrument operating system, sewage system, and electrical equipment. All the equipment is basically mounted on a common base frame, which in turn is mounted on a concrete foundation, making it a fixed compressor air supply station.

V-4/250 High Pressure Air Compressor Basic Parameters

1) Compressed medium: Air

2) Nominal volumetric flow rate: 4 m³/min

3) Model: V-4/250

4) Type: Reciprocating piston type, V-type, differential, small amount of oil lubrication

5) Number of compressor stages: 4

6) Number of cylinders: 4

7) Piston stroke: 92mm

8) Rotational speed: 980 r/min

9) Inhalation pressure: 0.1 MPa (A)

10) Rated exhaust pressure: 25.0 MPa (G)

11) Inhalation temperature: ≤40℃

12) Gas supply temperature: ≤50℃

13) Cooling method: Open water cooling; Cooling water temperature: ≤32℃

14) Cooling water pressure: 0.1-0.4 MPa

15) Cooling water flow rate: ~5T/h

16) Transmission method: Coupling drive

17) Installation method: Requires a foundation.

18) Power supply: Y315S-6 electric motor, 75kW, 980r/min, B3 IP44, 380V/50Hz

19) Noise power level: ≤105dB(A)

20) Lubrication method: Crankshaft, connecting rod, crosshead: oil pump pressure lubrication

                      Cylinder and packing: oil-free lubrication

21) Lubricating oil temperature: <70℃

22) Type of lubricating oil: GB11118.1

Ambient temperature above 5℃: Hydraulic oil L-HM150

Ambient temperature below 5℃: Hydraulic oil L-HM68

23) Oil pump pressure: 0.15～0.45 MPa

24) Lubricating oil temperature ≤70℃

25) Total weight: ~4500 kg

26) Main unit dimensions (length × width × height): approximately 2950 × 1870 × 1700 mm  

27) Automatic control:

 The compressor will alarm and shut down when the oil pressure is lower than the set value.

The compressor will alarm and shut down when the water pressure is lower than the set value.

An alarm will sound and the compressor will stop when the final stage discharge pressure of the compressor exceeds the set value.

When starting and stopping the compressor, manually open the ball valve between the fourth-stage exhaust pipe check valve and the first-stage intake pipe to achieve light-load start-up and shutdown. 

Compressor motor failure, overload alarm, shutdown.

28) The starting method adopts variable frequency starting.

II. Scope of Supply:

Compressor main unit, motor, base frame, air piping components, water piping components, manual drain piping components, instrument control panel components, instrument piping components, lubricating oil piping, start-up control cabinet, accompanying tools, accompanying spare parts, and accompanying technical documents (instruction manual, quality certificate, packing list, electrical schematic diagram, electrical wiring diagram, and foundation diagram).