Pnuematic fittings

[Daniel_LaFleur]

Originally Posted by IndySam

I know of no FIRST requirement for fitting thread size only hose size.

IndySam is correct except for

Originally Posted by 2011 rules R66 section B

B. Solenoid valves with a maximum ⅛” NPT port diameter, and a maximum Cv of 0.32 (if non-KOP valves are used, the team will be required to provide part documentation validating that the valves meet these constraints).

The hose size that IndySam is talking about is:

Originally Posted by 2011 rules R66 section C

C. Additional 0.160” inside diameter pneumatic tubing functionally equivalent to that provided in the KOP, with the pressure rating clearly factory-printed on the exterior of the tubing,

The OD of the Freelin-Wade tubing in the KOP is 0.25" and that is the push-to-fit size needed.

If you use push-to-fit fittings, I suggest getting a tubing cutter and ensuring that you cut the tubes square. Angle cuts cause so many leaks ...


Also, these are last years rules ... next years may (or may not) be radically different. YMMV.