5:1 Ratio Air Pressure Boosters • 0-8 scfm
This gas booster compressor uses shop air to boost the pressure of a separate air stream. Shop air is fed to the 4 inch diameter drive cylinder and the 2 inch diameter boost cylinder. The air piston reciprocates automatically and drives the boost piston.

Between the air cylinder and the boost cylinder there is a distance piece with a vent port which prevents cross contamination between the shop air and the boost air. The boost cylinder has a cooling jacket which uses exhaust air from the drive cylinder as the cooling medium.

The booster is unlubricated, and uses filled Teflon piston seals and rod seals. It requires no electricity, cooling water, or air-line lubricator and is explosionproof.

Flowrate in SCFM
Discharge Pressure
in
psi
Air Supply Pressure in psi
60
80
100
120
200
6.4
9.6
240
4.1
7.9
280
1.8
6.9
10.8
12
320
5.6
9.8
11.5
360
4.1
8.5
11.0
400
7.0
10.3
440
5.8
9.5
480
2.5
8.0
520
5.0
560
4.0
The maximum discharge pressure is equal to 5 times the shop air pressure. The table on the left shows the maximum flowrate capability at various discharge pressures versus several shop air supply pressures.

The discharge flowrate and pressure can be controlled by throttling the drive air flowrate and/or regulating the drive air pressure. When there is no demand for high pressure gas, the booster stalls when it reaches the maximum discharge pressure. When there is a need for high pressure gas, the pressure in the discharge line drops which causes the booster to restart automatically.

Model 4020AAV48
$3025
695 psi Maximum Pressure
18.5"Lx6.5"Wx8"H • 22 pounds

4020AAV48 Assembly Drawing.pdf

4020AAV48
Technical Manual PDF

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Model S4020A3 System
$4150
340 psi Maximum Pressure
3.5 Gallon Receiver Tank
23"Lx16"Wx23"H • 80 pounds

S4020A3 Brochure.pdf

S4020A3 Instructions.pdf

S4020A3 Assembly Drawing.pdf

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Model S4020A5 System
$4300
590 psi Maximum Pressure
5.5 Gallon Receiver Tank
30"Lx16"Wx22"H • 95 pounds
S4020A5 Brochure.pdf

S4020A5 Instructions.pdf

S4020A5 Assembly Drawing

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Last Revised 1/1/08