LPLT Filter Press Instruction Manual
207128
Revision G, September 2012
17
6
Standard Filter Press Test Procedures
Follow this procedure to operate the filter press with a compressed gas or dead-
weight hydraulic pressure source.
1.
Assemble the clean, dry parts of the filter cell (Figure 6-1) in the following
order:
a)
base cap
b)
rubber gasket
c)
screen
d)
a sheet of filter paper
e)
rubber gasket
f)
cell body
2.
Secure the cell to the base cap by rotating it clockwise.
3.
Fill the cell with the test sample to within approximately 1/4 in. (6 mm) of the
top.
Filling the cell to 1/4 inch (6 mm) of the top lessens the volume of
pressurizing gas required from the pressure source.
4.
Set the filter press cell assembly in place within the frame.
5.
Check the top cap to make sure the rubber gasket is in place. Place the top cap,
already connected to the pressure source, onto the filter cell and secure the cell
in place with the T-screw.
6.
Place a dry graduated cylinder under the filtrate tube, either on the support or in
the clip.
7.
Apply pressure to the cell following the appropriate pressure source procedure
as outlined in Section 4.
8.
After 30 minutes close the pressure source valve and back off the regulator.
Then, open the safety-bleeder valve to release the pressure on the entire system.
