Pressure booster (or intensifier) in three different sizes with 2:1 pressure ratio. The pressure booster uses compressed air to provide air at a higher pressure than the supply.
This range of pressure boosters is fully automatic - to operate just connect it to the compressed air line. By means of an internal circuit kt keeps on pumping till the down stream pressure reaches a value double the inlet pressure. The downstream circuit pressure is maintained even in the absence of inlet pressure.
Available with or without pressure regulator.
* Time to fill 10 litre tank to double the inlet pressure.