MONOFILAMENT MESH is a woven material. Each thread is a single filament. The openings are square. They have excellent strength and are cleanable.
MULTIFILAMENT MESH materials are woven from threads made of small fibers twisted together. Bags made from these materials are low cost and are disposable.
The graph shows the DP produced by a #2 size bag for water, 1 cps @ 68° F. The pressure drop is specific to the type of bag, the micron rating and flow rate for the filter bag only. It does not include the pressure drop caused by the housing & basket.
For other than #2 size bags, multiply DP from above table by the bag size correction factor below to calculate DP. If viscosity of the liquid is greater than 1 cps (water @ 68° F), multiply the result by the proper viscosity correction factor.