Performance
| PERFORMANCE - FILL RATE @ 60 PSI FEED | |||
| Product | Time to fill | ||
| Qty (ml) | Tank (psi) | With perm | W/o pump |
| 4989 ml | 60 psi | 1hr13min | |
| 4232 ml | 40 psi | 1hrs 42min | |
| 300 ml | 60 psi | 7 min | |
| 1047ml | 60 psi | 22.5 min. | |
| 1800 ml | 40 psi | 1.1 hrs. |
Data shown in graph above shows strong advantage of Perm pump in tank pressure achieved, time to completely fill the tank, and total amount of water. Perm pump allows 50% greater tank pressure (60 psi vs 40 psi), 18% more water (4989mis vs 4232 ml), in 28% less time (1:13 min vs 1:42min).
The last three lines in the chart show a significant benefit for the Perm Pump in
withdrawal of small amounts of water. A glass full (10.6 oz) takes 7 minutes to refill
with a Perm system. 6 cups (36.9 oz), enough for a pot of coffee is replenished in 22.5
minutes with the Perm Pump. 1800 ml or 63.5 oz) must be withdrawn from a conventional
system to allow the hydraulic shut off valve to reopen allowing the system to refill. It
takes 62 min. to replenish 1800 mis, a 176% increase in time to refill.
| PERFORMANCE - FILL RATE @ 30 PSI FEED | |||
| Product | Time to fill | ||
| Qty (ml) | Tank (psi) | With perm | W/o pump |
| 2947 ml | 24 psi | 2hr10min | |
| 2636 ml | 22 psi | 4hrs 41min | |
| 300 ml | 24 psi | 15 min | |
| 1047ml | 24 psi | 35 min. | |
| ** | 22 psi | 4.20 hrs. |
Data shown in graph above shows strong advantage of Perm pump for low feed water
pressures. Perm pump allows slightly more tank pressure (24 psi vs 22 psi), 12% more water
(2947mis vs 2636 ml), in less than half the time (2:10 min vs 4:41min). The last three
lines in the chart shows a huge benefit for the Perm Pump in withdrawal of small amounts
of water. A glass full (10.6 oz) takes 15 minutes to refill with a Perm system. 6 cups
(36.9 oz), enough for a pot of coffee is replenished in 35 minutes with the Perm Pump. No
data was taken to determine quantity that must be withdrawn from a conventional system to
allow the hydraulic shut off valve to reopen allowing the system to refill, although it
was observed that the product tank pressure fell to 11 psi before refill commenced. It
then took 4 hours 20 min. to completely refill the tank, or 800% increase in time to
refill.
