PFA lined butterfly valve

PFA / PTFE Lined Butterfly Valves for Reliable Control & Isolation of Aggressive Fluids
Fully lined valves are ideal for abrasive and corrosive applications, offering reliable performance, drop-tight shutoff, constant torque, and zero maintenance. Designed for long-lasting reliability in the toughest environments.

Standard Specifications
Valve Design: Meets MSS SP-67 & API 609 Standards
Face-to-Face Dimensions: Complies with API 609, ISO 5752, EN558-1 Standards
Flange Adaptability: ANSI Class 150, PN10/16, JIS 10K Flange Options
Inspection & Testing: API 598, EN 12266
Mounting Flange: ISO 5211

Product Range
Body Configurations: Wafer and Lug
Valve Size: 1-1/2 "~16" (DN40 ~ DN400)
Temperature: -40C ~180C

Available Operators
Lever Handle, Gear Operator, Pneumatic Actuators, Electric Actuators

Lining Material
We use premium virgin resins from trusted brands to manufacture high-quality PTFE and PFA fluoropolymers. Especially for lined valves, factors including liner thickness, resin quality and fabrication expertise always are more significant to affect valve performance and its service life.

Seat Liner
* Seat Liners are made from durable PTFE and PFA materials for superior corrosion resistance.
* Molded and machined with min. 3mm nominal thickness
* Optional TFM liner available for extremely demanding applications

Disc lining
* Fully lined with PTFE or PFA
* Encapsulated with a min. 3mm thick PTFE or PFA
Liner thickness: in accordance with ASTM F1545, the lining thickness must be 3mm as min. In practice, thicker linings offer better safety under vacuum, better resistance against abrasion as well as lower gas permeability.

Electrostatic Spark Test
Every valve undergoes a non-destructive high-voltage test of at least 10,000 volts to detect cracks or pinholes, ensuring liner integrity before shipment.

Design Change
In order to follow our commitment to continuous improvement, we reserve the right to revise or modify product and performance without prior notice.

Shaft
Square type stem head design facilitates adaption to automatic actuation.

One-piece disc / stem
Disc has spherically machined and hand polished disc edge hubs to eliminate torque and improve sealing capacity.

Seat
Molded liner is machined to provide low torque and reduce wear on the contacting parts.

ISO-5211 Mounting Flange
Universal mounting dimensions facilitate valve actuation.  Allows for direct mounting of several actuators.

Stem Bearings
Bronze or PTFE/SS bearings maintain shaft alignment. Self-lubricated bearings reduce side loading of shaft.

Body
2pc Split Body Construction with epoxy coating resists the effect of atmospheric corrosion. Polyester coating is optional.

Elastomer Back-up
It is the same width as the disc edge and locked into body groove. It provides resilience to body liner, giving bubble-tight seal.

Industry Applications

Chemical Processing, Petrochemical, Pulp & Paper, Solid Handling, Purification Plants, Mining, Pharmaceuticals, Food & Beverage, Textile, and highly corrosive gases, liquids, slurries, or powders.

• Chemical Processing
• Petrochemical
• Pulp and Paper Processing
• Solid handling
• Purification Plants
• Mining
• Pharmaceutical Industry
• Food Industry
• Textile
• Highly corrosive gas, liquid, slurry or powder

Contact us today for more information on PFA-lined butterfly valves or request a personalized quote.

Related Links

►PFA Lining Introduction
►PFA Lined valves and accessories
►Catalog Download
►Contact Us