High Pressure Diffuser - Installation and Cleaning
K
SS -
Fe
br
ua
ry
15
, 20
06
9:
51
am
-
Ed
it
ion
2
Operator Manual
2
Installation and Cleaning
2.1 Installation
The high pressure diffuser has been equipped with an orifice that produces a flow rate equal to
the flow rate through the particle counter. For additional information on other orifices, contact
Hach Ultra on 800.866.7889 or +1 541.472.6500. The orifice has been installed in the inlet or
“PRESSURE” side of the diffuser.
Several types of fittings exist for connecting the diffuser to the particle counting device. The
correct fitting is supplied for the application. Two fittings are shown in the following procedure.
2.1.1 Gasket Replacement
CAUTION:
Do not reuse a gasket as the gasket loses its ability to seal after the first compression.
Each time a fitting is removed from the installation, the internal gasket (part number 590831)
should be replaced. Remove the old gasket from the gasket retainer and insert the new gasket
as shown in
whichever is applicable. The gasket may instead be
placed on the #4 VCR fitting.
Fig 2-1 :
Gasket Replacement: CNC Users
Fig 2-2 :
Gasket Replacement: Particle Counter Users