Our Low/High nitrogen regulator systems come in 1-bottle, 2-bottle, 3-bottle, and 4-bottle configurations. Each system is identical except for the number of hoses that connect to the nitrogen supply bottles. A 1-bottle system consists of a 36" 5000psi nylon hose with a threaded brass connector for attaching to the nitrogen supply bottle; a low-pressure input pressure gauge (showing the pressure of the nitrogen in the supply bottle - 3500 psi max); a variable outlet low-pressure gauge (30-300 psi, showing the pressure of the nitrogen being released into the aircraft) controlled by a brass screw valve; a high-pressure input pressure gauge (showing the pressure of the nitrogen in the supply bottle - 3500 psi max); and a variable outlet high-pressure gauge (300-3500psi, showing the pressure of the nitrogen being released into the aircraft); and the same type of nylon hose (15-feet long) with a threaded brass connector for attaching to the aircraft's nitrogen port. A 2-bottle system is the same, but with two hoses going to the nitrogen supply bottles. And so on. Each system is roughly the same size (the additional supply hoses don't add much weight or mass to the system), and they ship in the same 18" x 12" x 12" cardboard box, weighing between 12 and 16 pounds. The purpose of having both a low and a high-pressure regulator is that for any aircraft there are different systems requiring nitrogen at different psi ranges; for example, aircraft tires and struts are filled with low-pressure nitrogen (not oxygen), while the on-board nitrogen tank - used as a backup system for hydraulic failure - requires high-pressure nitrogen. With a Low/High regulator system, one service cart can service all nitrogen requirements of an aircraft.

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