The PFA / FEP Lined Y-Type Strainer is the ultimate filtration solution for pipelines carrying highly corrosive, ultra-pure, or hazardous fluids. Designed for industries where standard metallic strainers would suffer from rapid chemical attack, these units feature a robust ductile iron or cast steel body internally lined with a thick, high-integrity fluoropolymer.
By isolating the metal housing from the process media, the PFA (Perfluoroalkoxy) or FEP (Fluorinated Ethylene Propylene) lining ensures that acids, alkalis, and aggressive solvents only contact chemically inert surfaces. This provides a "zero-corrosion" environment, protecting downstream equipment like pumps and instruments from both debris and chemical contamination.
Lined Options: PFA vs. FEP:-
Choosing the correct liner is essential for the longevity of your corrosive filtration system:
- PFA Lined (Premium): Offers superior thermal stability and higher mechanical strength. It is the preferred choice for high-temperature applications (up to 200°C) and is highly resistant to permeation by aggressive chemicals.
- FEP Lined (Economical): Provides near-universal chemical resistance at a more cost-effective price point. Best suited for processes with temperatures up to 150°C, offering a smooth, non-stick surface.
Key Features & Benefits:-
- Universal Chemical Resistance: Virtually unaffected by most known chemicals, including concentrated Sulfuric Acid (H2SO4), Hydrochloric Acid (HCl), and Nitric Acid (HNO3).
- Dovetail Groove Locking: The fluoropolymer lining is mechanically locked into the body casting using a "dovetail" groove system. This prevents the liner from collapsing or shifting under vacuum or high-pressure conditions.
- PTFE Filter Element: Features a reinforced PTFE or PFA-wrapped stainless steel screen, ensuring the entire wetted area is 100% corrosion-resistant.
- Easy Maintenance (Blow-off Port): Designed with a bolted cover and optional drain plug, allowing for rapid cleaning and flushing of collected solids without removing the strainer from the line.
- Full Flow Efficiency: The Y-pattern design is engineered to provide a large filtration area, ensuring minimal pressure drop and high flow capacity.
- Contamination-Free: The non-leaching properties of PFA/FEP make these strainers ideal for "clean-room" pharmaceutical and semiconductor processes.
