Natural Gas Engine Driven

Vapor Recovery Units

High Reliability. Big Returns.

Capturing natural gas emissions from oil field stock tanks has never been this easy and financially rewarding!

By meeting all of the Environmental Protection Agency (EPA) regulations, you are not only capturing the illegal Volatile Organic Compounds (VOC’s), but you are also able to re-sell the captured gases allowing the Vapor Recovery Unit (VRU) to pay for itself! Featuring our automated precision monitored control system with integrated blanket gas management, these VRU’s are suited to accommodate the tight control needed to maintain the low pressure range of vapor recovery.

  • Low Maintenance
  • Designed to Run Unattended
  • Very Effective for Handling Wet Gas

  • Natural Gas Engine Driven

  • Smooth and Quiet Operation
  • No Special Foundation Required

The BOSS® GasVantage Rotary Screw VRU’s allow your tank batteries to comply with EPA Quad O rulings. Our VRU’s are engineered around our rotary screw gas compressor that is simple to install, operate and maintain!

The VRU compressor is a self-contained, natural gas engine driven rotary screw compressor designed to be versatile and lightweight. Rotary screw compression is ideal for this application because of its ability to effectively handle wet gas. Two asymmetrical lobe profile rotors, turning at conservative speeds in a bath of lubricant, are the only major moving parts. The rotors seal on a lubricated pitchline virtually eliminating wear since there is no rotor contact. In addition, our VRU’s can be engineered to fit your vapor recovery requirements.

General Information

  • Reliable emissions compliant GM natural gas engine
  • Single stage, rotary screw compressor
  • Stainless steel hoses / tubing
  • Full flow engine & compressor oil filters
  • Two stage engine air filter
  • Compressor oil thermal by-pass valve
  • Compressor separation receiver tank
  • Inlet gas scrubber/blowcase with filter element & auto dump system
  • Compressor oil cooler / after cooler / radiator
  • Heavy duty skid frame with environmental containment pan
  • Rust resistant electrostatic powder coat finish

GM 3.0L SCG8G

3.69 Gear Ratio

Compressor Data

 GM 3.0L SCG8G (3.69 Gear Ratio)
TypeSingle Stage, Oil Flooded Rotary Screw
Minimum Discharge Pressure70 psig
Maximum Discharge Pressure200 psig
Fluid Capacity10.5 gal

Engine / Electrical Data

 GM 3.0L SCG8G (3.69 Gear Ratio)
Engine ModelVortec GM 3.0L
Motor (Inverter Duty)43 HP
CID181 Cu. In.
Cylinders4
Electrical Rating12 VDC

Misc. Product Data

 GM 3.0L SCG8G (3.69 Gear Ratio)
Weight2600 lbs.

Compressor Data

MSCFD @ 2400 RPM

Suction Pressure Discharge Pressure (@ 70 PSIG) Discharge Pressure (@ 80 PSIG) Discharge Pressure (@ 90 PSIG) Discharge Pressure (@ 100 PSIG) Discharge Pressure (@ 125 PSIG) Discharge Pressure (@ 150 PSIG) Discharge Pressure (@ 175 PSIG) Discharge Pressure (@ 200 PSIG)
0109,089108,058107,027105,996103,419100,84498,26995,696
1117,206116,174115,142114,111111,533108,956106,380103,805
2125,322124,290123,258122,226119,646117,068114,490111,913
3133,439132,406131,373130,341127,759125,179122,600120,022
4141,556141,522139,489138,455135,873133,291130,710128,131
5149,673148,638147,604146,570143,986141,403138,821136,239
6157,789156,754155,720154,685152,099149,515146,931144,348
7165,906164,871163,835162,800160,213157,627155,041152,457
8174,023172,987171,951170,915168,326165,738163,152160,566
9181,103180,066179,030176,439173,850171,262168,674
10189,219188,182187,145184,556181,962179,372176,783

GM 4.3L SCG10G

1.96 Gear Ratio

Compressor Data

 GM 4.3L SCG10G (1.96 Gear Ratio)
TypeSingle Stage, Oil Flooded Rotary Screw
Minimum Discharge Pressure70 psig
Maximum Discharge Pressure200 psig
Fluid Capacity10.5 gal

Engine / Electrical Data

 GM 4.3L SCG10G (1.96 Gear Ratio)
Engine ModelVortec GM 4.3L
Motor (Inverter Duty)64 HP
CID262 Cu. In.
Cylinders6
Electrical Rating12 VDC

Misc. Product Data

 GM 4.3L SCG10G (1.96 Gear Ratio)
Weight2955 lbs.

Compressor Data

MSCFD @ 2400 RPM

Suction Pressure Discharge Pressure (@ 70 PSIG) Discharge Pressure (@ 80 PSIG) Discharge Pressure (@ 90 PSIG) Discharge Pressure (@ 100 PSIG) Discharge Pressure (@ 125 PSIG) Discharge Pressure (@ 150 PSIG) Discharge Pressure (@ 175 PSIG) Discharge Pressure (@ 200 PSIG)
0189,634188,086186,539184,991181,122177,253173,385169,516
1202,884201,337199,789198,242194,373190,504186,635182,767
2216,135214,588213,040211,492207,624203,755199,886196,017
3229,386227,838226,291224,743220,874217,006213,137209,368
4242,636241,089239,541237,994234,125230,256226,387222,519
5255,887254,340252,792251,245247,376243,507239,638235,769
6269,138267,590266,043264,495260,626256,758252,889249,020
7282,389280,841279,294277,746273,877270,008266,140262,271
8295,639294,092292,544290,997287,128283,259279,390
9307,242305,795304,247300,379296,510292,641
10320,593319,046317,498313,629309,760305,892

GM 5.7L SCG14G

1.43 Gear Ratio

Compressor Data

 GM 5.7L SCG14G (1.43 Gear Ratio)
TypeSingle Stage, Oil Flooded Rotary Screw
Minimum Discharge Pressure70 psig
Maximum Discharge Pressure200 psig
Fluid Capacity10.5 gal

Engine / Electrical Data

 GM 5.7L SCG14G (1.43 Gear Ratio)
Engine ModelVortec GM 5.7L
Motor (Inverter Duty)97 HP
CID350 Cu. In.
Cylinders8
Electrical Rating12 VDC

Misc. Product Data

 GM 5.7L SCG14G (1.43 Gear Ratio)
Weight3100 lbs.

Compressor Data

MSCFD @ 2400 RPM

Suction Pressure Discharge Pressure (@ 70 PSIG) Discharge Pressure (@ 80 PSIG) Discharge Pressure (@ 90 PSIG) Discharge Pressure (@ 100 PSIG) Discharge Pressure (@ 125 PSIG) Discharge Pressure (@ 150 PSIG) Discharge Pressure (@ 175 PSIG) Discharge Pressure (@ 200 PSIG)
0382,627379,118375,610372,101363,330354,558345,787337,015
1409,147405,639402,130398,622389,850381,079372,308363,536
2435,668432,160428,651425,143416,371407,600398,828390,057
3462,189458,680455,172451,663442,892434,120425,349416,578
4488,710485,201481,693478,184469,413460,641451,870443,098
5515,230511,722508,213504,705495,933487,162478,390469,619
6541,751538,243534,734531,225522,454513,683504,911496,140
7568,272564,763561,255557,746548,975540,203531,432522,660
8594,793591,284587,775584,267575,495566,724557,953549,181
9617,805614,296610,788602,016593,245584,473575,702
10644,325640,817637,308628,537619,765610,994602,223