When And How To Change Gaskets of Filter Press
When to replace the gaskets of a filter press?
It’s a good idea to change your gaskets whenever you change your filter cloths. Also, if you are getting excessive leakage out of the filter press while maintaining correct hydraulic closure pressure, this may be a sign that it is time to change your gaskets.
Gasket life will depend on many factors, such as length of filtration cycle, temperature, and excessive closing force. Gasket replacement should take place if the gasket appears to be delaminating or shredding. Also, if excessive temperatures exist and cycles are very long, the standard gasketing material may go into additional cure, causing it to harden slightly. If you continue to have a problem, contact your Met-Chem representative for an alternative.
How to change the gaskets of filter press?
1， Insert the gasket starting at the bottom center of the filter plate using a wood or plastic mallet. Push the gasket into the groove around the outer edge of the plate until it mates at the center of the plate. Many installers will incorrectly stretch the gasket material. This reduces the cross section, making it easier to insert. However, by stretching the gasket material for easier installation, it has a tendency to creep and open the butted joint of the gasket, causing a leak.
2，Cut the gasket approximately 1/2" (12mm) to 1" (25mm) longer than required, cutting the end squarely.
3， Apply one or two drops of Eastman 910 (or equivalent "super glue") to one end of the gasket and quickly join it to the other end. Hold it under hand pressure for approximately 30 seconds. Then crowd the excess gasket into the groove to ensure fullness of gasket material.