PTFE Seat Butterfly Valve

PTFE / PFA Seated Butterfly Valve for Corrosive Service

The FlowBiz PTFE Seated Butterfly Valve is the definitive solution for chemical handling. We utilize high-grade PFA (Perfluoroalkoxy) and PTFE to line the interior of the valve. The liner covers the entire bore and extends over the flange contact faces, acting as an integrated gasket and providing a seamless, corrosion-resistant barrier.

The PFA Advantage:

While PTFE is the industry standard, FlowBiz incorporates PFA for superior performance. PFA is melt-processed, resulting in a lower melt viscosity than PTFE. This allows for:

  • Enhanced Thermal Stability: Reliable operation at temperatures up to 260°C.
  • Superior Chemical Resistance: Exceptional performance against strong acids, caustics, and reactive gases.
  • Non-Porous Surface: The melt-processing ensures a denser, more uniform lining compared to traditional PTFE, reducing the risk of permeation.

Technical Specifications

Feature

Specification Details

Size Range

2 inches to 12 inches (50 mm to 300 mm)

Max Temperature

Up to 260°C

Pressure Class

ANSI 150, DIN PN 10 / PN 16

Liner Material

Virgin PTFE / PFA / FEP

Body Design

Wafer Type (Short Wafer)

Design Standards & Compliance:

  • Design & Manufacturing: API 609 Category A / BS 5155 / MSS-SP-67
  • Face-to-Face: ISO 5752 Tab 5 / API 609 Category A
  • Actuation Mounting: ISO 5211 Part II (Top Flange Drilling)
  • Testing: API 598 / BS 6755 / FCI-702

Key Features & Advantages

  • Zero Body Contact: The "inaccessible body" design ensures that even the most corrosive media only comes into contact with the PFA/PTFE liner and the lined disc.
  • Integrated Flange Gasket: The liner extends to the flange faces, eliminating the need for separate gaskets and reducing potential leak points.
  • Low Torque Operation: The inherently low coefficient of friction of PTFE/PFA ensures smooth disc rotation and reduced wear on the actuator.
  • Bubble-Tight Shut-Off: Precision-molded seats provide a secure, vacuum-rated seal even in fluctuating pressure conditions.
  • Versatile Actuation: Standardized top flange drilling (ISO 5211) allows for easy mounting of levers, gears, pneumatic cylinders, or electric actuators.

Strategic Industrial Applications

  • Chemical Processing: Handling sulfuric acid, hydrochloric acid, and chlorine.
  • Pharmaceutical & Biotech: Managing high-purity fluids and aggressive cleaning agents.
  • Fertilizer Plants: Corrosive slurry and chemical feed lines.
  • Mining & Metallurgy: Acid leaching and solvent extraction processes.
  • Desalination: Handling concentrated brine and treatment chemicals.

Contact Information

Reach out to the FlowBiz technical team for material compatibility charts and quick quotes:

Request Your Quick Quote Today!

Protect your infrastructure from chemical attack with FlowBiz PFA/PTFE technology. We provide Easy and Quick Quotes for both domestic chemical plants and international export projects.

Contact FlowBiz Exports Pvt. Ltd. now – Your leading partner for Lined Butterfly Valves.