12
Filta-Max
xpress
Operator’s Guide
Assembling sampling and filtering equipment
Sampling
You can collect samples at the point of source or in the laboratory. IDEXX provides the equipment
necessary to perform sample filtration using the Filta-Max
xpress
Filter Modules or
Filta-Max Filter Modules, Filter Housings, and sampling and elution fittings (see Appendix A).
To set up the sampling equipment:
1. Connect the Swagelok* quick-flow (QF) body
to the Swagelok hose-tail fitting to create the
sampling inlet. Use PTFE tape to help form a
seal.
2. Attach the sampling inlet to a hose that is
connected to the water supply or a pump.
If a pump (diaphragm, peristaltic, etc.) is used
to sample water, it must be installed upstream of
the Filter Housing.
Note:
A hose clip is required to ensure that the
seal between the hose and the sampling inlet is
watertight.
3. Connect the Swagelok quick-connect (QC)
stem to a Swagelok hose-tail fitting to create the
sampling outlet. Use PTFE tape to help form a
seal.
4. Attach the sampling outlet to a hose that is connected to a suitable waste outlet.
Note:
A hose clip is required to ensure that the seal between the hose and the sampling outlet
is watertight.
Operating pressure
A head pressure of 0.5 bar (7.5 psig) is required to generate flow through the Filter Module. The
recommended operating pressure is 5.0 bar (72.5 psig), which should generate a flow of 1–2 liters
per minute (LPM). The operating pressure should not exceed 8.0 bar (116 psig). Pressure spikes
should be avoided where possible.
Hose
Hose-tail
fitting
QF body
Sampling inlet
Hose
Hose-tail
fitting
QC stem
Sampling outlet
