The booster is a pressure intensifier. A large diameter drive air piston is connected to a smaller diameter gas boost piston. The air pressure acting on the drive piston generates force through the rod to the boost piston which increases the pressure of the gas in the boost cylinder. Built-in controls cause both pistons to cycle automatically producing a stream of high pressure gas from the boost cylinder while consuming shop air.
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No. The booster has a distance piece between the drive air cylinder and the gas boost cylinder. There are rod seals at each end of the distance piece. The gas end rod seal contains pressure in the gas cylinder and the drive end rod seal contains pressure in the drive cylinder. The seals are made from filled Teflon® and there is a very small amount of gas and air leakage through the seals. A vent port in the middle of the distance piece allows this leakage to vent to the atmosphere. The length of the distance piece exceeds the stroke length of the pistons, consequently, the segment of the rod which enters the drive cylinder does not enter the boost cylinder and vice versa.
The discharge pressure can be controlled by regulating the drive air pressure. The drive air pressure and area ratio between the pistons determine the maximum discharge pressure. We offer an optional air controls package (ACG) that includes a 5μ inlet filter, drive air pressure regulator, and drive air pressure gauge.
The operational discharge pressure is the discharge pressure the booster produces while providing the desired flowrate. This pressure can be much lower than the maximum discharge pressure. As the booster approaches its maximum discharge pressure, it begins to slow down and the flowrate decreases. At the maximum discharge pressure it stops cycling because all of the forces in the booster are balanced. When a booster fills a tank, it stops automatically when it reaches the maximum discharge pressure. It restarts automatically when the pressure in the tank drops.
Gas boosters are designed for 15 million cycles of service life before a rebuild is required. They can operate 24 hours a day, seven days a week at cycle rates as high as 100 cpm. The cycle rate depends on the booster flowrate. A booster operating continuously at 50 cycles per minute would have an operating life of hours.
Most boosters in an indoor factory environment operate problem-free on shop air with a +40• F pressure dewpoint and particulate filtration of 5μ or better. For outdoor cold weather environments, or exceptionally high cycle rate operation, air quality of -40• C pressure dewpoint and particulates filtered to at least 5μ will assure problem-free operation. This is ISO .1 Class 2.2.2. commonly referred to as instrument quality air.
MPS gas boosters are suitable for pressurization of most inert gases.
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Consult our engineering team for help in selecting the right system.
Maintenance is required when:
The most common causes of booster failure are:
MPS offers rebuild kits and rebuild services. Please call us to get a return authorization number and then we will analyze and quote the repair upon receipt. Quotes for all repairs are at no charge
Many systems are sold with a spare booster. The piping system has valves which permit activation of the spare and safe removal of the worn booster.
Here are some of the more common uses:
The Maximator booster’s operating principle is similar to a pressure intensifier. A large air piston is charged with low pressure (air piston (3)) and works on a small area with high pressure (hp piston (2)). The continuous operation is achieved by a pilot operated 4/2 way valve (spool (4)). The spool leads the drive air alternately on the upper and bottom surface of the air piston. The spool is piloted through two 2/2 way valves (pilot valves (7)) which are mechanically actuated through the air piston in its end positions. The pilot valves charge and discharge the spool chamber. The hp piston supported by the check valves (inlet check valve and outlet check valve (1)) delivers the flow. The outlet pressure is directly related to the set air drive pressure. According to the formulas indicated in the table with technical features of the boosters, the static end pressure can be calculated. At this pressure a force balance between drive section and gas section is achieved. The booster stalls when this end pressure is reached, and does not consume any further air. A pressure drop at the high pressure side or a pressure increase at the drive side starts the booster automatically until the force balance is achieved again. Additionally the MAXIMATOR boosters can be switched on and off automatically through MAXIMATOR air pilot switches, contact gauges or external control devices.
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