420TAAV090
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Model Number 420TAAV090 Air/Gas Pressure Booster The Model 420TAAV090 air/gas pressure booster system uses shop air to boost the pressure of an air or gas stream. The drive air piston reciprocates automatically and drives the gas compressor piston. The booster is non-lubricated 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 (MDP) is equal to piston area ratio in combination with the drive air pressure (DA) and process gas (PG) pressure. The maximum discharge pressure equation is listed below. (10.8 x DA + 3.1 x PG) / 1.4 = MDP The graphs which follow show the maximum flowrate capability for a range of air and gas supply pressures and discharge pressures. The boosted gas flowrate and 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 M I D W E S T 1-1/2" Square there is a need for high pressure gas the pressure in PRESSURE drops which causes the booster to the discharge line SY S T E M S restart automatically. 10:1 Maximum boost ratio Shop air driven No electricity is required Explosion proof Aluminum construction Stainless steel hardware Midwest Pressure Systems, Inc. 850 Transport Drive, Valparaiso, IN 46383 Phone 219-462-0070 Fax 219-318-2277

Process Cylinder Specifications Bore diameter & stroke - in (mm) Maximum gas discharge pressure - psi (bar) Gas temperature range - ºF (ºC) Maximum recommended cycle rate - cpm (Note 1) Gas displacement per cycle - cf (l) Maximum gas displacement - cfm (lpm) Maximum Pressure boost (multiple of drive air pressure) Seal vent connections FNPT Drive Cylinder Specifications Gas inlet and discharge connection FNPT Bore diameter & stroke - in (mm) Maximum drive pressure - psi (bar) (Note 2) Air temperature range - ºF (ºC) Air displacement per cycle - cf (l) Maximum air displacement - cfm (lpm) Note...

Shop Air Pressure Boosting Drive air pressure and supply pressure are the same 1000 940 100 psig air Discharge Pressure in psig Use the curves above to determine Model 420TAAV090 air/gas pressure booster’s maximum discharge flowrate for a given MPSset of operating conditions. In the example shown above, a maximum discharge pressure of 740 psi M I D W E S T 1-1/2" Square is desired and PRESSURE an 80 psig supply is available. Follow the 740 psi M S SY S T E line until it intersects with the 80 psi supply curve. Draw a vertical line from the intersection down to the bottom line to determine...

Gas Pressure Boosting Drive air pressure is 80 psig - Gas supply pressures from 60 to 100psig 850 Discharge Pressure in psig Use the curves above to determine Model 420TAAV090 air/gas pressure booster’s maximum discharge flowrate for a given set conditions. In the MPS aof operatingdischarge pressureexample shown above, maximum of 780 psi M I desired. Note that the drive air pressure is 80 psi for D W E S T 1-1/2" Square is PRESSURE the curve. With a gas supply pressure of all points on SY S T E M S 100 psig is available. Follow the 780 psi line until it intersects with the 100 psi gas...