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2:7:1 Boost Ratio
This gas booster compressor uses shop air to boost the pressure of an inert gas stream. Shop air is fed to the cycling control valve and the gas stream is connected to the boost cylinder inlet port. The air piston reciprocates automatically and drives the gas compressor piston.
Between the air cylinder and the gas cylinder there is a distance piece with a vent port which prevents cross contamination between the shop air and the gas.
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 explosion proof.
The maximum discharge pressure is equal to the sum of the gas inlet pressure and 1.78 times the shop air pressure. The table below shows the maximum flowrate capability with 90 psi shop air and a typical range of inlet and discharge gas pressures.
Both the gas flowrate and the gas discharge 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.
| Maximum Gas Flowrate in scfm Driven with 90 psi Shop Air Pressure | |||||
| Gas Supply Pressure in psi |
Gas Discharge Pressure psi | ||||
| 150 | 175 | 200 | 225 | 250 | |
| 50 | 10 | 6 | 2 | ||
| 60 | 11 | 9 | 4 | ||
| 70 | 13 | 11 | 6 | 1 | |
| 80 | 15 | 12 | 8 | 2 | |
| 90 | 16 | 14 | 11 | 5 | |
| 100 | 18 | 16 | 14 | 9 | 2 |
| 110 | 19 | 17 | 15 | 11 | 4 |
| 120 | 20 | 19 | 17 | 13 | 7 |
