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Rotary Screw Oil-free Compressors

TECHNICAL DATA

  • Capacity: up to 250 m3/min (15 000 nm3/h)
  • Discharge pressure: 2 MPa (20.4 kgf/cm2)
  • Drive power: 1 600 kW

COMPRESSIBLE GASES

APPLICATION

The rotary screw oil-free compressors are intended for compression of gases when technology process requires no any oil vapors. This type of compressor contains driving and driven rotors, placed in a casing that may have water cooling jacket. The rotors rotate in a support and trust slide bearings and have connection gear wheels that fix the rotors with necessary spacing between them eliminating their mutual contact.

The basic models can be modified in accordance with the customer requirements.

DESIGN FEATURES AND ADVANTAGES

  • Resistance to ingress a liquid phase into compression space
  • Operation in a wide range of capacity and composition of compressible gas
  • Application of high-efficient gas coolers to decrease temperature of compressed gas
  • High energy efficiency of the compressor system due to variable frequency drives
  • Minimal leaks and losses thanks to optimized compression process

 

INSTALLATION

  • Compressor systems for permanent building of compressor station
  • Block-container version with all engineering systems
  • Hangar version for installation in an easily-constructed prefabricated building including engineering systems.
  • Compressor systems for outdoor installation

SCOPE OF SUPPLY

  • Compressor system
  • Electric motor
  • Lubrication unit
  • Emergency lubrication oil tank
  • Control valves
  • Gas cooler
  • Noise silencers at suction and discharge sides
  • Automatic control system

Model

Compressible gas

Capacity
m3/min
(nm3/h)

Pressure
MPa (bar)

Rotation speed,
rpm

Drive

Dimensions, m

Weight
including
el. motor, automation, piping, spare parts, kg

Application

Suction

Discharge

Type

Power,
KW

96GV-285/19S

Flare gas

285 
(15933)

0,1 
(1,03)

1,86 
(19)

I st. – 4455; 
II st. - 8610

El. motor 

1600+ 
1460

16,50х19,00х6,50

80000**

Oil refining. 
Gas compression

75GV-90/1,4-12S

Waste gas

90 
(6819)

0,14 
(1,4)

1,18 
(12)

I st. – 6252; 
II st. - 11351

El. motor 

1250

6,00х3,10х2,85*

49500

Oil refining. 
Diesel hydro-treater

75GV-88/2,4-16S

Wet (sour) gas

88 
(11430)

0,24 
(2,4)

1,57 
(16)

I st. – 5975; 
II st. - 8650

El. motor 

1250

5,77х2,62х2,12*

49500

Oil refining. 
Gas compression

6GV-55/3,5-15S

Wet thermal gas

55 
(10418)

0,34 
(3,5)

1,47 
(15)

3000

El. motor 

1000

7,45х2,35х3,56

13500

Oil refining. 
Gas compression

6GV-55/2,5-11S

Straight-run gas

55 
(7441)

0,24 
(2,5)

1,08 
(11)

3000

El. motor 

630

7,45х2,35х3,56

13200

Oil refining. 
Gas compression

* Dimensions of compressor system only
** (without spare parts and automation system)