Tech Answer

What is the difference between standard and Hi-Flo NOS bottle valves?

The orifice of the Hi-Flo valve is much larger than the standard valve and allows for a larger flow of nitrous. With a small orifice valve a pressure drop could occur when nitrous flow is high, causing surging or inadequate flow. The NOS Hi-Flo bottle valve eliminates this problem and is standard in all NOS kits.

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