Metal finishing Q&As since 1989

-----

Guide to select and sizing a filtercloth

Technical support selecting a filter cloth for an application. Dear sir I want to select a filter cloth.
1 what should I ask to the supplier.
2 how to manipulate data available for clothes for sizing the cloth.

jv shah

Jalendu shah
- vadodara, gujarat, India
2003

An answer in the same vein of the question stated. You use a cloth appropriate for the solution you are filtering and of a mesh equivalent for the removal of what ever it is that you desire. It would make a difference if you are filtering a volatile solvent for microscopic particles or bowling balls out of a concentrated acid.

James Watts
- Navarre, Florida
2003

---

2007

sir
I want to know what is the specification for filter cloths.
and what is the full meaning of micron used in filter cloths.

D.MOHAN KRISHNA
employ in l&t purchase dpt - visakhapatnam , AP , INDIA

---

That is a pretty broad question, Mohan, because filter cloths are used in thousands of different applications. But often you will specify a filter cloth made out of a material which is resistant to the fluid which you are filtering. Usually, a micron rating equates to a mesh dimension; for example a 90 micron filter will not let particles through that are larger than 90 microns. However, "filter aids" are often used. Thus you might have a filter cloth with a fairly large opening, and you first catch diatomaceous earth filter aid on it, then the filter aid rather than the cloth itself catches the smaller particles that you are actually trying to remove.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2007