Rigimesh® Media

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Rigimesh medium is a sintered, woven-wire-mesh product having the greatest permeability for comparable removal efficiency. Sintered in a high temperature vacuum furnace, the wires are bonded at every point of contact to produce an extremely strong metallic medium with wires that will not shift under stress; thus the pore size and integrity is continuously maintained. Since sintering increases mechanical strength, this patented Pall process permits the use of finer diameter wires in manufacturing the medium.

We have the ability to sinter multi-layer composites of different meshes on special order, and to meet application needs for precise flow, pressure drop, thickness, or strength.

Major Advantages

Features

Controlled pore size with a sharper particle size cut-off than depth filter media
Finer sinter-bonded woven wires

Benefits

Assured absolute particle retention
Long on-stream life

Grade	Clean Pressure Drop


	Gaseous Service Air Permeability¹ psid-ft²/scfm	Liquid Service Water Permeability² psid-ft²/gpm

A	*	*

T	*	*

S	0.000055	0.00015

R	0.00009	0.0002

M	0.00018	0.0005

J	0.00029	0.0040

K	0.00085	0.0067

¹ Pressure drop in psi obtained by multiplying value shown by actual gaseous flow rate desired (ACFM), ratio of viscosities actual cp/0.018, all divided by total filtration area (ft²) of element selected. ²Pressure drop in psi obtained by multiplying value shown by actual flow desired in gpm, viscosity of liquid in centipoise (if other than 1 cp), all divided by total filtration area (ft²) selected. *Properties are not readable.

Grade	Removal Ratings (µm)				Nominal Thickness (in.)


	Liquid Service³		Gas Service⁴

	98%	100%	98% Removal by Weight	100% Removal

K	5	18	3.5	13	.006

J	10	25	6	18	.006

M	17	45	11	25	.006

R	40	70	30	55	.011

S	70	105	50	85	.010

T	145	225	120	175	.014

A	300	450	250	350	.019

³ Based on modified F2 efficiency test which measures removal efficiency by particle count. ⁴ Weight percent removal data based on AC Fine Test Dust in air. Absolute retention ratings based on actual particle count data.Typical Performance

Part Number	Grade	Size (in.)


A, 304L, 18X48	A	18x48

A, 304L, 20x48	A	20x48

A, 304L, 21x48	A	21x48

J, 304L, 18X48	J	18x48

J, 304L, 20x48	J	20x48

J, 304L, 21x48	J	21x48

K, 304L, 18X48	K	18x48

K, 304L, 20x48	K	20x48

K, 304L, 21x48	K	21x48

M, 304L, 18x48	M	18x48

M, 304L, 20x48	M	20x48

M, 304L, 21x48	M	21x48

R, 304L, 18X48	R	18x48

R, 304L, 20x48	R	20x48

R, 304L, 21x48	R	21x48

S, 304L, 18X48	S	18x48

S, 304L, 20x48	S	20x48

S, 304L, 21x48	S	21x48

T, 304L, 18X48	T	18x48

T, 304L, 20x48	T	20x48

T, 304L, 21x48	T	21x48

Y, 304L, 18x48	Y	18x48

Rigimesh® Media

Major Advantages

Chemical Compatibility

Flow Characteristics

Removal Efficiency