Please fill in folling required information for accurate equipment selection and systeim design
Suction pressure (PSIG) range
steady... 
low... 
high... 
Discharge pressure (PSIG) range
steady... 
low... 
high... 
Capacity MCF/Day
steady... 
low... 
high... 
"K" value of gas 
Ratio of specific heats.
Specific gravity of gas
Found by gas analysis, a default value of .65 is often used for natural gas.
BTU of gas
Found by gas analysis, pure methane has approximately 1000 BTU per standard cubic foot.
Inlet temperature of gas (degrees Fahrenheit)
Lower initial temperatures require less compression power.
Ambient temperature of site
High ambient temperatures may require additional cooling to prevent overheating between stages of compression.
Elevation of site in feet
Natural aspirated engines require deration in horsepower as elevation increases, also gauge pressure is altered by altitude changes.
Flowing well(s)
Multiple flowing may create surges or gaps in the desired flow rate.
Pumping well(s)
Generally indicate a steadier stream of gas but mechanical problems can alter flow below desired parameters.
Plunge lift or intermitter
Initial surge of flow and periods of no flow must be dealt with in order to protect the compressor.
Gathering system(s)
Same concerns as above.
H2S or C02 (in parts per million)
Found by gas analysis, these are dangerous corrosive gases and must be known and dealt with to protect personnel and equipment.
Electricity on site
Depending on the quality of the gas. Electric driven compressors can be less expensive to operate and maintain than engine driven units.
yes no
Applicant name
Contact phone number or Email 

Gas Compressors

Vilter's line of single-screw compressors for natural gas and process applications (VSG) is used in a variety of applications, including digester gas, fuel gas boosters, landfill gas, LNG boil-off, vapor recovery, process gas and natural gas gathering.

These compressors have been designed with efficiency and versatility in mind, providing both performance and maintenance advantages.

The key is in the balanced design. The positive displacement rotary compressor uses a single main screw intermeshed by two opposing gaterotors. Gas compression occurs when the individual fingers of each gaterotor sweep through the grooves of the main screw as the screw rotates. Fewer moving parts means fewer overhauls resulting in significant maintenance savings.

The balanced main screw results in ultra-low bearing loads and significantly decreased vibration and sound levels.

In addition to supplying the bare compressor, you can also count on our team of engineers to design and manufacture complete packages for the natural gas and process industries.

The Vilter Advantages:

Balanced main rotor with no axial or radial loads 
Low bearing loads 
Clockwise rotation models available 
High suction pressures available 
Parallex Slide System 
Low noise levels 
Low maintenance costs