>
> I guess the Bosch, Delhpi, Pierburg all have different delivery pressure
> and gas volume.
>

The Bosch pump has free delivery of at least sixty liters per hour.  It's a
roller cell pump, so it basically delivers the same amount for every
revolution of the pump.  It can deliver around 125 psi before the internal
overpressure valve opens.

Yrs,
d