OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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13. Add approximately 320 mL of test fluid to the cell. Be careful not to pour
any fluid on the o-ring recess.
The fluid level inside the cell should be
flush with the bottom of the o-ring recess.
14. Place the cell o-ring (#170-13-3) in the o-ring groove and place the pre-
pared ceramic disk on top.
15. Find the cell cap with the scribed flow lines in the surface. Screw the cell
cap into the outlet end of the test cell. Coating the o-ring with a thin coat
of high-temperature silicone grease will help.
Use a spanner wrench or strap wrench to prevent cell body rotation while
installing the “outlet” end cap.
If you are using filter paper instead of a ceramic disk, use the provided
screened cell cap to prevent tearing. The screened cap is 2½" thicker to
account for the missing disk.
16. The space between the filter medium and the ball valve should be filled
with base fluid prior to starting the test. This will ensure that the volume
of filtrate passing through the filter will displace an equal volume of filter-
ate into the receiver.
a. Close the outlet ball valve.
b. Using a syringe, inject base fluid into the valve stem that connects to
the cell cap. Make sure the valve stem is completely filled.
17. Screw the outlet valve stem assembly into the cell cap. Loosen it one half
turn.
Screened Cell Cap
Scribed Cell Cap
To Back Pressure
Receiver (#171-90-10)
Ball Valve
(#171-97)
To Cell Cap
(#171-90-09)
Fill With Base Fluid
