The main filter product names of China Strainer Network include:Flange-connection Y Fype Strainer,Hand-Operated Brush Type Strainer,Oxygen Strainer,P Type Automatic Sewage Disposal Strainer,SRB Series Basket Type Strainer,Stainless Steel Y Type Strainer

 

What is a PTFE Lined Pipe Filter?

A PTFE (Polytetrafluoroethylene) lined pipe filter combines the structural integrity of a metallic outer shell—usually carbon steel or ductile iron—with the extraordinary chemical inertness of a fluoropolymer interior.

 

Through a specialized lining process, the internal surfaces of the filter housing and the flange faces are seamlessly covered with PTFE. This creates a "shield" that prevents the process medium from ever coming into contact with the metal, effectively eliminating the risk of corrosion.

 

Key Benefits of Choosing PTFE Lined Filters

1. Unmatched Chemical Resistance

PTFE is famous for being nearly impervious to all chemicals, including concentrated acids (such as sulfuric and hydrochloric acid), strong bases, and organic solvents. Whether you are handling hot brine or aggressive bleaching agents, a PTFE lined pipe filter maintains its integrity where others fail.

 

2. High Temperature Stability

Unlike many other plastics, PTFE can operate efficiently at temperatures ranging from -29°C to +200°C. This makes it suitable for high-temperature chemical reactions that would melt or degrade standard PVC or HDPE linings.

 

3. Exceptional Non-Stick Properties

The low friction coefficient of PTFE prevents the buildup of "scaling" or chemical deposits inside the filter. This ensures a consistent flow rate, reduces pressure drop, and makes the cleaning process significantly faster during maintenance cycles.

 

4. Product Purity

In industries like pharmaceuticals and fine chemicals, preventing metal ion contamination is critical. PTFE is chemically stable and does not leach impurities into the fluid, ensuring the highest level of product sensitivity and purity.

 

Common Applications

Corrosion Resistant PTFE Lined Pipe Filters are widely utilized in sectors where "Zero Corrosion" is a requirement:

 

Chemical Processing: Handling of aggressive acids, alkalis, and corrosive catalysts.

 

Petrochemical Industry: Filtration of acidic hydrocarbons and treated wastewater.

 

Pharmaceuticals: Maintaining sterile and non-reactive environments for active ingredient synthesis.

 

Water Treatment: Desalination plants and chemical dosing systems.

 

Maintenance and Lead Times

While PTFE lined filters are built for longevity, regular inspection of the lining integrity is recommended during scheduled shutdowns. Due to the precision required in the lining and flaring process, these filters are typically custom quoted based on specific parameters such as:

 Size: (e.g., DN25 to DN600)

 Pressure Class: (PN10, PN16, or ANSI 150lb)

 Filter Type: (T-type, Y-type, or Basket type)

 

 

Do you still need to know or purchase the following Strainer products: