If the filter press is leaking (around the locknut on the 470mm size or from the bottom leg drain holes on 630mm and larger size presses) during the start-up of the feed process, the problem is usually leakage past the center feed quad ring seal. The quad ring may not seal for several reasons.
Please follow the instructions outlined below. If you need help installing or you need to order a center feed pipe assembly, please contact us at 216-881-7900 or info@metchem.com
In the orientation shown in the photo below, with the rim of the Clip Nut Seat Starting onto the Center Feed Pipe, temporally install the Gasket and the Clip Nut Seat onto the “B” side of the Center feed Pipe with approximately one inch of the pipe extending beyond the back side of the clip nut seat.
Once the pipe is in though the filter press head plate steel frame, ensure that the Center Feed Pipe has sufficient threads to install the Locking Nut onto side “A” and then tighten down against the steel frame.
This photo illustrates an assembly that does not have enough threads.
This photo illustrates the Center Feed Pipe re-adjusted to the Clip Nut and Clip Nut Seat, so that threads of the “B” side of the Center Feed Pipe now protrude too far past the Clip Nut and must be trimmed. The GOAL of moving the “A” side into the frame of the filter press so that the Lock Nut can now tighten the assembly has be accomplished.
Apply NON-Silicone Sealant to the Filter Press plate center feed tube hole, as shown.
Install the Gasket
Apply sealant to the outer side of the Gasket.
Install the Center Feed Pipe and glued nut into the
filter press plate.
Hold the outside (side “A”) of the center feed pipe and install the outer Lock Nut.
Tighten firmly by hand, or with a spanner wrench if necessary. Rotation of the pipe and glued nut is suggested to ensure even silicone discernment.
Clean off any squeeze out from the inside of the Pipe assembly.
Reinstall the cloth to the head plate (cloth not shown for clarity) and then the install the Clip Nut over the cloth. The Clip nut is used to hold the cloth in place. The spanner wrench, shown above, or similar should be used to tighten this nut.
The new Center Feed Pipe Assembly is now installed and ready to be reconnected to the ball valve feed from the diaphragm pump.
Met-Chem, Inc.
837 East 79th St.
Cleveland, OH 44103
Phone: (216) 881-7900
Email: info@metchem.com
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