# How to use an Compressed Air tank?

1. How to refill a 4500 psi air tank.

2. How do I know the pressure of air comming out . ( Most Important)

Can anybody please provide me a schematic drawing on how do I connect the air tank,

the pressure gauges (Gauge 1. which shows the pressure and amount of air in the tank and Gauge 2 which shows the pressure of air comming out) and the compressor with the copper tubes.

I read on a site formula for power of an air engine is HP= PLAN / 33000

where

P. Mean effective pressure in pounds per square inch.

L. Stroke in feet.

A. Piston area in square inches.

N. Number of power strokes per minute.

How do I get value of N for the formula.

Thanks for any help.

active| newest | oldestthe wheels at 4000 psi and at 800 psi

:¬\Initially you should start with MUCH lower pressures and then consult an expert so you get the right equipment and materials.