Eaton LOFCLEAR Filter Bags: Series 100 & 500 Technical Guide

High-Efficiency Absolute Filtration for Industrial Applications

For industrial operations requiring high-purity filtration without the high operational costs of cartridge systems, Eaton LOFCLEAR™ filter bags offer a superior solution. These high-performance filter bags bridge the gap between standard bag filtration and expensive filter cartridges. Designed for absolute filtration efficiency, LOFCLEAR bags are engineered to handle difficult contaminants, including gels, deformable particles, and oils.

At Purecowater, we supply the full range of Eaton filtration solutions, including the specialized LOFCLEAR 100 and 500 series. This guide breaks down the specifications, capabilities, and applications of these advanced filter bags.

What makes LOFCLEAR distinct?

Unlike standard needlefelt bags, LOFCLEAR filter bags utilize multi-layer melt-blown polypropylene construction. This design provides absolute efficiency ratings (99%) and significantly higher dirt-holding capacities. They feature the patented SENTINEL® seal ring, ensuring a 100% bypass-free seal compatible with standard filter housings.

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LOFCLEAR 100 Series: Multi-Layer Precision

The LOFCLEAR 100 Series is designed for high-purity applications. These bags feature a three-layer construction consisting of a melt-blown polypropylene filter matrix and a protective spunbond cover layer. This structure prevents downstream fiber migration and ensures consistent performance.

Key Capabilities:

• Absolute Filtration: Available in efficiency ratings from 4 to 40 microns with >99% efficiency.
• Oil Adsorption: Specialized models within the 100 series are highly effective at removing trace oils from water-based fluids.
• Gel Retention: The depth structure breaks up gels and retains them within the media, preventing surface blinding.

LOFCLEAR 100 Technical Specifications

Feature	Specification
Material	Melt-blown Polypropylene
Seal Ring	SENTINEL® (Polypropylene)
Max Operating Temp	194°F (90°C)
Dirt Holding Capacity	Approx. 0.55 lbs (250 g)
Micron Ratings (99%)	4, 5, 10, 15, 20, 30, 40 µm

Common Applications for Series 100

• High-purity fluids with low particulate cleanup
• First-pass guard filtration
• Activated carbon removal
• Hydraulic oils and lubricants
• Edible oil processing

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LOFCLEAR 500 Series: High-Capacity Pleated Performance

The LOFCLEAR 500 Series takes bag filtration to the next level with a fully-welded, multi-pleated construction. This design dramatically increases the filtration surface area inside the bag, allowing for exceptional dirt-holding capacity and extended service life.

Why choose Series 500?

• Extended Surface Area: The pleated pre-filter design provides approximately 32 square feet (3 m²) of filter area—far exceeding standard bags.
• High Dirt Capacity: capable of holding over 2.2 lbs (1,000 g) of particulate matter.
• Gel Removal: The complex arrangement of filter layers excels at removing difficult contaminants like gels and deformable particles.

LOFCLEAR 500 Technical Specifications

Feature	Specification
Material	Pleated Melt-blown Polypropylene
Max Differential Pressure	36.2 psi (2.5 bar)
Filter Area (Size 02)	~32 ft² (3 m²)
Max Flow Rate (Size 02)	53 GPM (12 m³/h)
Retention Ratings (99%)	2.6, 6, 13, 32 µm

Common Applications for Series 500

• Slurries and dilute oil removal
• Process fluids with heavy contamination
• Coatings, paints, and varnishes
• Chemical processing

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Filtration Efficiency Comparison

Choosing the right micron rating is critical for achieving your absolute purity goals. The table below illustrates the removal efficiency across standard LOFCLEAR models.

Filter Model	>90% Efficiency (µm)	>95% Efficiency (µm)	>99% Efficiency (µm)
113 / 123	1 µm	2 µm	4 µm
115 / 125	3.5 µm	8 µm	10 µm
135 (Oil Removal)	6 µm	8 µm	10 µm
522	1 µm	1.5 µm	2.6 µm
525	2 µm	3.5 µm	6 µm

Ordering & Support

Whether you need the high-purity precision of the LOFCLEAR 100 or the massive dirt-holding capacity of the pleated LOFCLEAR 500, Purecowater can assist with sizing and selection for your specific housing and process stream.