______________________________________________________________________________________________________________________________________________

The Engineering Behind the Matrix

Our needle felt media is produced through a precision process where fibers are passed through beds of specially barbed needles. This locks and entangles the fibers into a strong, durable matrix capable

• Deep-Bed Filtration: Trapping contaminants throughout the entire thickness of the media, not just on the surface.

• Fiber Integrity: The downstream side is treated with a special heat-singeing process, ensuring zero fiber migration into your clean fluid stream.

• Rugged Fabrication: Ideal for both high-strength sewn seams and leak-proof fully welded constructions.

Critical Applications for Infrastructure & Industry

The Pellicle Series is specifically designed to handle “hard” contaminants in high-velocity environments:

Application	Targeted Contaminant Removal
Pipeline & Heat Exchanger Flushing	Effectively captures weld slag, rust, and heavy scale during system commissioning.
HVAC & District Cooling	Ideal for chemical dosing and removing debris from large-scale chilled water systems (Common in UAE, Qatar, and KSA).
Pre-Treatment & Water Service	Removes dirt, grit, and trace oils to protect expensive downstream membranes.
Industrial Processing	Handles low-to-medium viscosity liquids and gases in chemical and automotive plants.

Material Versatility for Global Compliance

KFilter provides the Pellicle Series in a vast range of high-performance materials to suit any chemical or thermal requirement:

Polypropylene (PO): The economical choice for general water and chemical applications.

Polyester (PE): Ideal for higher temperature and high-tensile strength requirements.

Nylon (PA): Excellent for solvent-based filtration and specialty industrial liquids.

PTFE: The ultimate solution for extreme temperatures and aggressive chemical environments

______________________________________________________________________________________________________________________________________________

Why the Pellicle Series is the Preferred Global Choice

Economical Disposal: Designed for high-performance at a low cost-per-gallon, making it the most efficient choice for “one-time” flushing operations.

Standard & Custom Sizes: Available in all industry-standard bag sizes 7×32 and custom dimensions for unique housing units.

Gel & Soft Particle Capture: Unlike mesh bags, our needle felt can capture deformable particles and gels that would otherwise bypass standard filters.

Thermal Stability: Heat-set media ensures consistent pore size even under fluctuating temperatures.

______________________________________________________________________________________________________________________________________________

Technical FAQ for the Pellicle Series

1.What are the micron rating available in Pellicle Series liquid bag filters ?

The Pellicle Series Needle Felt Filter Bags are engineered to cover the full spectrum of industrial filtration, from heavy-duty primary flushing to fine secondary clarification.

To ensure high-performance in the Middle East, Europe, and USA markets, these bags are available in the following comprehensive micron range:

Standard Micron Ratings for Pellicle Series

Filtration Grade	Available Micron Ratings (µm)	Typical Application
Ultra-Fine	1, 5, 10	Final polishing, high-purity water, and protection of sensitive membranes.
Fine	25, 50	HVAC chemical dosing, fine silt removal, and glycol filtration.
Medium	75, 100	General industrial water, pre-filtration for RO systems, and food/beverage.
Coarse (Flushing)	150, 200	Pipeline flushing, removing weld slag, rust, and heavy scale.

2. Are Pellicle Series bags suitable for high-velocity flushing?

A: Yes. The needle-locked matrix is designed to maintain its structural integrity even under the turbulent flow conditions found in pipeline and heat exchanger flushing.

3. What is the benefit of “Singeing” the downstream side?

A: Singeing melts the loose surface fibers. This is a critical safety feature that prevents “media migration”—meaning no loose bits of the filter bag end up in your clean system.

4. Can these bags handle oils?

A: While primarily designed for solids (dirt/rust), our Polypropylene (PO) felt has natural oleophilic properties that can capture trace amounts of oil during flushing operations.

5. Pellcle Series liquid bag filters are acid and alkaline resistance?

The chemical resistance of the Pellicle Series depends entirely on the material (polymer) you choose for your specific environment. Since these filters are used globally in harsh sectors like Oil & Gas (USA) and District Cooling (Middle East), selecting the right media is critical to prevent filter bypass or failure.

Here is the breakdown of the acid and alkaline resistance for the Pellicle Series:

Chemical Resistance Matrix: Pellicle Series

Material	Acid Resistance	Alkaline Resistance	Max Temp	Best Use Case
Polypropylene (PO)	✅ Excellent	✅ Excellent	90°C	Best for high-acid/alkali water treatment & chemical dosing.
Polyester (PE)	⚠️ Good	❌ Poor	150°C	Higher temps, but sensitive to strong alkalis (caustic).
Nylon (PA)	❌ Poor	✅ Excellent	135°C	Excellent for solvents and high-alkaline fluids.
PTFE (Teflon)	⭐ Ultimate	⭐ Ultimate	260°C

______________________________________________________________________________________________________________________________________________

Why “Chemical Resistance” Matters for Your System Integrity

Using a filter that isn’t resistant to your fluid’s pH can lead to:

Media Migration: Fibers breaking down and entering your clean system.

Filter Bypass: The bag losing its structural “matrix,” allowing weld slag and rust to pass through.

System Shutdown: Premature clogging or bag rupture due to chemical softening.