LPLT Filter Press Instruction Manual
207128
Revision G, September 2012
14
4.3
Dead-Weight Hydraulic Pressure Source
The Dead-Weight Hydraulic Filter Press is a Series 300 Filter Press equipped with
a dead-weight hydraulic assembly. See Figure 10-6.
Follow this procedure to pressurize the filter press with the dead-weight hydraulic
pressure source.
1.
Fill the water reservoir and cylinder of the dead-weight assembly to the top
with clean fresh water.
2.
Open the bleed-off valve and place the piston, with the weight attached, in the
cylinder. Allow the piston to travel full stroke. Refill the reservoir with clean,
fresh water and close the bleed-off valve.
3.
Set the unit in place on the filter press frame, and tighten the attaching set
screws.
4.
Connect the hose from the dead-weight assembly to the top cap pressure inlet.
5.
Raise the weight to the top of its stroke and allow it to settle. In about two-
thirds of the stroke, the delivery pressure gauge will indicate 100 psi.
6.
Lift the dead weight back to the top of the stroke. Start timing the test when the
weight is released. One stroke of the piston will allow a maximum filtration
loss of approximately 30 ml.
