Advantages And Applications Of Pfa Lined Basket Filters

For chemical and petrochemical applications, the PFA lined basket strainer protects pumps, valves, and heat exchangers by removing solid particles from corrosive fluid streams. Flanged connections (PN10, PN16, 150LBS) enable secure installation. Select liner material based on temperature: PFA for -29°C to 200°C, PTFE for -29°C to 180°C, FEP for -29°C to 150°C. The removable basket captures debris while the PFA/PTFE/FEP lining isolates the metal housing from aggressive media.

Lining Protection and Corrosion Resistance

• The ptfe lined pipe concept extends to strainers through PFA/PTFE/FEP linings that cover all wetted surfaces.

• A minimum 3 mm lining protects the carbon steel or stainless steel housing from chemical attack.

• The pfa lined pipe approach ensures the strainer body withstands exposure to acids, caustics, and solvents.

• Temperature limits: PFA handles up to 200°C, PTFE up to 180°C, FEP up to 150°C.

Basket Design and Filtration Efficiency

• The removable filter basket, made of PFA, PTFE, or FEP, captures particles with standard 3 mm mesh openings.

• The basket type strainer design allows quick cleaning or replacement without removing the strainer from the line.

• The flow area corresponds to the nominal bore size, minimizing pressure drop across the strainer.

• PFA and PTFE lined baskets resist chemical attack and do not contaminate the process fluid.

Technical Specifications

Chemical Service Applications

The pfa lined pipe technology in basket strainers serves strong acid handling: sulfuric, hydrochloric, and nitric acid service where metallic strainers would fail. For chlor-alkali processing, chlorine gas and brine solutions require PFA lining for permeation resistance. In petrochemical processing, aggressive hydrocarbons and catalysts are contained by the fully lined housing. High-temperature processes benefit from PFA-lined strainers handling temperatures up to 200°C.

Installation and Operation

1. Install between flanges with proper gasket seating (PTFE, PFA, or FEP).

2. Ensure flow direction matches arrow on strainer body.

3. Tighten flange bolts evenly to specified torque.

4. Monitor pressure drop across strainer; clean basket when differential pressure rises.

5. Replace basket during scheduled maintenance or when damaged.

Maintenance and Reliability

• The basket type strainer allows quick basket removal through the top cover, minimizing downtime.

• PFA, PTFE, and FEP linings prevent corrosion, extending service life in aggressive chemical service.

• The strainer can be cleaned online by isolating the unit and removing the basket for cleaning.

• Replacement baskets in PFA, PTFE, or FEP are available for different filtration requirements.

Engineering Value for Process Safety

The ptfe lined pipe technology in basket strainers prevents corrosion-related failures that could cause hazardous leaks. The removable basket protects downstream equipment from particle damage. The flanged connection provides secure, leak-free installation. Compliance with DIN-EN and ASME standards ensures compatibility with existing piping systems.

Proper strainer selection ensures reliable equipment protection. Select lining material based on temperature and chemical compatibility.

1. Select liner material: PFA for -29°C to 200°C, PTFE for -29°C to 180°C, FEP for -29°C to 150°C.

2. Verify flange rating matches process pressure (PN10, PN16, or 150LBS).

3. Choose body material (carbon steel for general service, stainless steel for high-purity applications).

4. Specify basket mesh size based on particle removal requirements.

These measures ensure reliable equipment protection. Properly specified PFA lined basket strainers deliver corrosion resistance and filtration efficiency in chemical and petrochemical applications.

FVF PFA Lined Basket Type Strainer

• FVF lined strainer is the corrosion resistant equipment that used in a variety of corrosive services for the removal of debris from the pipeline or solid particles from the media.
• The unique design allows the strainer to be easily removed for cleaning or replacement. Impurity substance stops at PTFE screen so that the purity flow can go through the strainer. After a period of time, take out the dismountable filter screen tub, and it can be reassembled after cleaning.Therefore it is easy maintenance.
• Screen size of the lined strainer ranges from 16 to 100 meshes and 16 meshes as standard.
• By far the lined strainer is widely used in petroleum, chemical pharmaceutical and environmental protection industries. It can not only enlarge the lifespan of pump and other equipment, but also ensure the safety of the complete system. Lined strainer becomes the indispensable equipment for industrial production.

Product Parameter

Materials of Main Parts

Technical Specification