FIRE Pistons By Docfire PB

[docfire]

FIRE Piston for ID, WGP, Res, & MacDev – Docfire Paintball

[superman]

I noticed a difference with nummech piston. I will likely have to pick up a few for my other markers. I am sure some people may or may not see the benefit in this, but i think these are cool for the guy trying to squeeze every drop out of his marker.

[Psycho91]

What do these do

[superman]

What do these do

"Replace your Damaged or Low Flowing regulator piston. These pistons are higher flow which will allow you to run a lover operating pressure*. 6061 anodized pistons will stand the test of time. "

[Frmrspec]

This thread is useless without reg dyno’s .. show us that improved recharge/flow/consistency

[ford]

As a buffoon, I appreciate the washer patterns anodized on the pistons.

[zinger565]

As a buffoon, I appreciate the washer patterns anodized on the pistons.

Yeah, me too. Saves having to look it up or try to analyze a picture I may or may not have taken beforehand.

[Axel]

As a buffoon, I appreciate the washer patterns anodized on the pistons.

Yeah, me too. Saves having to look it up or try to analyze a picture I may or may not have taken beforehand.

It's one of those little details that I really appreciate.

[Frmrspec]

Still no dyno

[docfire]

Not yet.

[flyweightnate]

I'm a little confused. A higher flowing piston to allow a lower operating pressure, or tank input pressure? Flow through the piston should only be relevant immediately after the shot, when the reg opens... and the idea is that a typical reg piston starves the gun if you run too low an OP, but not at higher OPs?

If my memory serves, volumetric flow depends exclusively on the port diameter/ geometry if there's a good difference between the two pressures (e.g. dropping from 800psi to 350), but that flow will slow down as downstream pressure, that is, operating pressure, increases.

I'm interested in a dyno test, with upstream pressure known and downstream at several setpoints, as much to understand the velocity through the reg piston as anything. I'd recommend at least one point at a 2:1 upstream to downstream ratio, one above, and a couple below.

A look at the seat-end corners would be interesting, too - namely, the radii.

The engineer in me is starting to nerd out. I apologize.