Flow HYPLEX, Manual, Page: 11 / 100

© Flow International Corporation
M-416 | 11
CHAPTER 1
Equipment Description
Water requirements
The HyPlex Prime pump requires a single source of
water, and one drain line.
Water quality
CAUTION
A high concentration of dissolved solids in the inlet water
(especially silicates and calcium) can reduce waterjet
nozzle life. If water quality is poor and filtration will not
correct it, the customer must add additional water
treatment equipment. Contact Flow Technical Service
for more information.
Flow recommends the use of a water softener to
pre-treat the cutting water. Water quality should be
maintained to within the following limits:
•
Total disolved solids: 17 ppm
•
Water pH: between 6.5 and 9.5
Additional water quality requirements are specified in
the
Inlet Water Quality document provided at pre-in-
stallation.
Water flow rate
Systems should be sized for 150% of your pump ca-
pacity, and should match your intended maximum
duty cycle.
Water temperature
An inlet water temperature of between 55°F and 70°F
(12.7°C and 21°C) is recommended for proper pump
performance. Premature pump component failure is
common if water temperatures are outside this range.
Inlet water chillers should be used if the inlet water
temperature is above this range.
Water interface connections
Flow recommends the installation of manual shut-off
valves in the inlet/cooling water line. Locate valves as close
as possible to the pump interface connection to make
them easier to service.
Water inlet lines must be non-corrosive pipe or rubber
hose. Rubber hose (per SAE Standard 20R1, 30R1, or
equivalent) is recommended.
Water inlet lines (from the filtering system to the pump)
must be as short as possible and must be PVC, copper, or
equivalent. Do not use galvanized iron piping or black
iron—it can introduce minerals to the water, which can
shorten component life.
•
Connect inlet water line to pump bulkhead.
•
Connect proper drain line to PCV bulkhead outlet.
CAUTIONS
To ensure that the PCV does not suffer damage due to
siphoned catcher tank water, connect the PCV drain line
directly to an outlet drain above the water line,
or suspend the line above the catcher tank water level.
Water exiting the PCV drain line is hot.