PMM® Medium

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A thin sintered matrix of stainless powder within the pore structure of sintered, stainless steel, woven-wire mesh, PMM medium combines the best qualities of our PSS sintered powder and Rigimesh sintered, woven-wire-mesh media. The thin woven-wire-mesh support structure is exceptionally strong and the composite is quite ductile.

The medium has a smooth surface and excellent uniformity. It is an excellent choice for solid separation and solids recovery applications. In both liquid and gas service, this filter medium will function as an exceptionally high-performance septum.

Standard material of construction is all 316L Stainless Steel, but other alloys, such as Inconel 304, and 310 Stainless Steel are available on special order.

Major Advantages

Features

Very fine removal efficiencies
Thin, pleatable filter medium
Repeatedly cleanable

Benefits

Provides efficient cake formation and release for solids recovery applications
Provides higher surface area

Acids Acetic acid - glacial: Resistant Acetic acid - 10%: Resistant Acetic acid - 30%: Resistant Acetic acid - 90%: Resistant Hydrochloric acid - conc. (35%): Resistant Hydrochloric acid - 6N (20%): Resistant Hydrochloric acid - 1N (3.3%): Resistant Nitric acid - conc. (67%): Resistant Nitric acid - 6N (27%): Resistant Sulfuric acid - conc. (96%): Resistant Sulfuric acid - 6N (16%): Resistant	Alcohols Amyl alcohol: Resistant Benzyl alcohol: Resistant Butanol: Resistant Ethanol: Resistant Isopropanol: Resistant Methanol: Resistant
Aromatic Hydrocarbons Benzene: Resistant Toluene: Resistant Xylene: Resistant	Bases Ammonium hydroxide - 3N (5.7%): Resistant Ammonium hydroxide - 6N (11.4%): Resistant Potassium hydroxide - 3N (15%): Resistant Sodium hydroxide - 3N (11%): Resistant Sodium hydroxide - 6N (22%): Resistant
Esters Amyl acetate: Resistant Butyl acetate: Resistant Cellosolve acetate: Resistant Ethyl acetate: Resistant Isopropyl acetate: Resistant Methyl acetate: Resistant	Ethers Ethyl ether: Resistant Tetrahydrofuran: Resistant Tetrahydrofuran/water (50/50 v/v): Resistant
Glycols Ethylene glycol: Resistant Glycerol: Resistant Propylene glycol: Resistant	Halogenated Hydrocarbons Carbon tetrachloride: Resistant Chloroform: Resistant Ethylene dichloride: Resistant Methylene chloride: Resistant Tetrachloroethylene: Resistant
Ketones Acetone: Resistant Cyclohexanone: Resistant Methyl ethyl ketone: Resistant Methyl isobutyl ketone: Resistant	Miscellaneous Acetonitrile: Resistant Dimethyl formamide: Resistant Dimethyl sulfoxide: Resistant Formaldehyde - 37%: Resistant Formaldehyde - 4%: Resistant Hexane - dry: Resistant Kerosene: Resistant Pyridine: Resistant 18 Megohn water: Resistant
Oils Cottonseed: Resistant Peanut: Resistant

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


	Liquid Service¹			Gas Service²

	90%	99%	100%	Weight % Removal	100%

M020	0.1	0.5	2	>99.99	0.4	.0055

M050	0.6	2	5	99.99	.06	.0055

M100	2	5	10	99.97	1.3	.0050

M150	5	9	15	99.96	2.5	.0060

M200	8	13	20	99.93	4.0	.0090

M250	10	16	25	99.90	9.0	.0090

¹ Based on modified F2 efficiency test, removal efficiency by particle count. ² Weight percent removal data based on AC Fine Test Dust in air. Absolute retention ratings based on actual particle count data.

Grade	Clean Pressure Drop


	Gaseous Service Air Permeability³psid-ft²/scfm	Liquid Service Water Permeability⁴ psid-ft²/gpm

M020	0.0943	0.870

M050	0.0581	0.490

M100	0.0442	0.280

M150	0.0139	0.170

M200	0.0114	0.070

M250	0.0029	0.020

³ 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. ⁴ Pressure 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.

Part Number	Grade	Size (in.)


PMM, M020, 316L, 11.75X48	M020	11.75X48

PMM, M050, 316L, 11.75X48	M050	11.75X48

PMM, M100, 316L, 11.75X48	M100	11.75X48

PMM, M150, 316L, 11.75X48	M150	11.75X48

PMM, M200, 316L, 11.75X48	M200	11.75X48

PMM, M250, 316L, 11.75X48	M250	11.75X48

PMM, M020, 316L, 16X60	M020	16X60

PMM, M050, 316L, 16X61	M050	16X60

PMM, M100, 316L, 16X62	M100	16X60

PMM, M200, 316L, 16X63	M200	16X60

PMM, M250, 316L, 16X64	M250	16X60

PMM, M320, 316L, 16X65	M320	16X60

PMM® Medium

Major Advantages

Chemical Compatibility