MRR wrote:I didn't say that it doesn't work, I just said (in other words) that the opening time suffers when there is no counter mass -> projectile.
Any pneumatically operated valve does suffer somewhat, due to the fact the pressure can't build up as much when there's no projectile.
Don't pretend that it's slow though.
Building a valve in tech's QDV style would be over complicated if you doesn't benefit from its original design purpose.
Not necessarily. As I have said in the past, pneumatically opened valves are sufficiently fast that a little increase (or decrease) in opening time is essentially inconsequential.
Secondly, I'm building one for 3vo's trigger valve (specifically, as a pilot for the QEV that pilots the main piston valve*). The combination as whole may be overkill, but some of the details of how it works that make it somewhat ideal for what I'm doing.
*And I would note, the fact the QEV essentially vents straight to atmosphere hasn't hampered it.