25. Record the filtrate volume.
26. Allow the torque plate to stick in the down position for 10 minutes.
27. Remove the lever and attach the socket to the torque wrench. Place
the torque wrench and socket on the hex top of the torque plate stem.
Wedge the lever between the columns above the cell platform so it can
be used as a counter-torque lever.
If the filter paper tears when the torque plate is rotated, cell pressure
will be lost through the valve stem. A standard HTHP Filter Press back
pressure receiver may be substituted for the graduated cylinder while
the torque readings are being taken. A length of rubber or tygon tubing
can also be attached to the valve stem with the outlet end attached to a
closed container.
28. Measure the torque by rotating the torque plate in either direction with
the torque wrench. Observe the dial reading.
29. Repeat the torque measurements three to six times, allowing 30 sec-
onds between each check. Record each reading.
30. Calculate the average torque reading and record the plate sticking time.
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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Important
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