Quote:
Originally Posted by Mike Betts
Yes, vacuum systems are exempt but you are talking about a hybrid pneumatic/vacuum system. Therefore, the system would almost certainly be considered pneumatic by an inspector.
Also, check valves are not legal this year.
JMHO,
Mike
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Still, it's not generating any positive pressure, which is generally what "pressure" is considered. If I were to hook up gauges, such as the ones from the KOP, to each cylinder supply line, both would read 0 psi, since they only measures on a positive scale. The mere fact that a pneumatic system is a "hybrid" in a certain configuration does not necessarily mean that it is illegal. It would be considered a vacuum-generating device when pressure is released, and a pneumatic device when pressurized. In a week, after my spring break is over, I'll create a video to better demonstrate my point.
Also, since the "check valves" that I'm using are technically flow-control valves, they are legal, as I stated previously.