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Filter Types & Grades

FILTER TYPES

G Filter:
Coalescing filters for general purpose protection, removing solid particles, liquid water and oil aerosol.
Total Mass Efficiency: 99 %
For optimum filtration, a G filter should be preceded by a water separator.

S Filter:
Particulate filters for dust protection.
Count Efficiency: 99.81 % at Most Penetrating Particle Size. (MPPS = 0.1 micron)
An S filter should be preceded by a dryer at all times.

C Filter:
High-efficiency coalescing filters, removing solid particles, liquid water and oil aerosol.
Total Mass Efficiency: 99.9 %
For optimum filtration, a C filter should be preceded by a G filter at all times.

D Filter:
High-efficiency particulate filters for dust protection. Count Efficiency: 99.97 % at Most Penetrating
Particle Size. (MPPS = 0.06 micron)
A D filter should be preceded by an S filterat all times and is commonly fitted after an adsorption dryer.

V Filter:
Activated carbon filter for removal of oil vapor and hydrocarbon odors with a maximum remaining oil content of 0.003 mg/m3 (0.003 ppm).
1000 hour lifetime

P Filter:
Coalescing and particulate general purpose pre-filter. Removes solid particles, dust, liquid and oil aerosol.
Total Mass Efficiency: 90 %

FILTER GRADES

Open table
SDGCPV
Filter TypeSolid ParticlesSolid ParticlesOil aerosol & solid particlesOil aerosol & solid particlesOil aerosol & solid particlesOil vapor
Test methodISO 12500-3ISO 12500-3ISO 12500-1
ISO 8573-2
ISO 12500-1
ISO 8573-2
ISO 12500-1
ISO 12500-3
ISO 8573-2
ISO 8573-5
Inlet Oil Concentration (mg/m3)NANA1010100.01
Count efficiency (% at MPPS)(MPPS=0.1 μm)
99.81
(MPPS=0.1 μm)
99.81
NANA(MPPS=0.1 μm)
89.45
NA
Count efficiency (% at 1 μm)99.9799.999NANA94.19NA
Count efficiency (% at 0.01 μm)99.8799.992NANA93.63NA
Max oil carry-over (mg/m3)NANA0.10.0110.003
Dry pressure drop (psi)1.742.03NANA1.232.32
Wet pressure drop (psi)NANA2.973.481.66NA
Wet pressure drop (psi) in typical compressor installationNANA2.682.90NANA
Element serviceAfter 4,000 operating hours or 1 year or pressure drop > 5.08 psiAfter 4,000 operating hours or 1 year or pressure drop > 5.08 psiAfter 4,000 operating hours or 1 yearAfter 4,000 operating hours or 1 yearAfter 4,000 operating hours or 1 yearAfter 1,000 operating hours (at 68ºF) or 1 year
Precede with-Swater separatorG-G & C

* MPPS - Most Penetrating Particle Size
** Inlet oil concentration - 10 mg/m3