Lined Butterfly Valves
Our PFA lined butterfly valves are designed for handling aggressive corrosive conditions, ensuring long-term durability under the harshest conditions. With exceptional corrosion resistance, these valves are used in industries like chemical processing, chlor-alkali, mining, petrochemicals, pulp and paper, steel, pharmaceuticals, and wastewater treatment. We also offer butterfly valves with FEP, PVDF, ETFE, ECTFE and PPH liners.
Our butterfly valves can operate in a wide temperature range (oC) and can withstand pressures up to 15 bar . Certified for CLASS VI – Tight Shutoff as per API 598, these valves have zero leakage ensuring safe and reliable operations.
Our butterfly valves come with versatile operational options choose from a robust cast iron lever, handwheel, electric, or pneumatic actuator for effortless control. The PTFE seats ensure low-friction performance and high endurance, while our single-piece shaft and uniformly lined PFA disc ensure corrosion free long-lasting service. Available in sizes from DN50 – DN 1000 ( 2” to 40”), our valves are ready to meet the demands of your project.
With decades of industry expertise, our team is dedicated to delivering high-quality, cost-effective solutions tailored to your needs.
Technical Specifications
- Size Range: DN50 - DN1000 (2"- 40")
- Design: API 609 Cat A WAFER type or LUG Type
- Rating: ANSI B 16.5 #150 / DIN PN 10
- Body Materials: ASTM A 216 GR. WCB / ASTM A 351 GR. CF 8 or 8M (SS316) / SS304
- Trim insert: ASTM A 890 GR. 4A (CD3MN) / Super duplex / Alloy 20
- Disc Lining: PFA / FEP / PVDF / ETFE / ECTFE / PPH / Antistatic PFA
- Seat: mPTFE / TFM / PTFE
- Disc Sealing: CLASS VI, Tight SHUT OFF as per API 598
- Temperature: - 40 °C to 230 °C
- Max Pressure: 15 Bar
- Test standards: API 598, ISO 9393-2 or BS EN 12266-1-2003. (Hydro test, Pneumatic test, Spark test)
Product Features
Highly Corrosion-Resistance PFA lining
Made from 100% virgin high purity Grade A PFA, with optional antistatic PFA for enhanced safety.
Single Piece Stem
and Disc
Single-piece stem and disc construction provides superior strength and prevents misalignment of stem and disc.
High Strength
Trim Insert
Duplex steel trim insert ensures high torsional strength, minimizing twisting to ensure leak free closure.
Class VI Tight
shut off
Designed to API 598 standards for Class VI tight shutoff, ensuring zero leakage in all operating conditions.
Enhanced Process
compatibility
Available in both wafer and lug types, with multiple liner options including PFA, FEP, PVDF, ETFE, ECTFE, and PPH to suit various applications.
Low friction
Seat
Features TFM/mPTFE seats with rubber backing, providing low friction, high resilience, and excellent resistance to deformation.
Certified
Quality
Available with CE / PED certification and Hydro test, Pneumatic test, Spark test, Helium test according to API 598 / BS EN 12266-1
ISO mounting
Pad
Direct mount actuation pad provided for quick and easy automation.
Approved
ISO 15848-1
Fugitive Emission Certification
Documents
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GreyTec – Butterfly Valve – Brochure.pdf |
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Case Stories
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Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since the 1500s, when an when an unknown printer took a galley of type and scrambled it to make a type specimen book.
Related Products
FAQ's
A PFA-lined butterfly valve features a disc and body lined with PFA (Perfluoroalkoxy alkanes) , providing excellent corrosion resistance and low permeability. This makes it ideal for handling aggressive chemicals, where standard valves may not be suitable
PFA lining offers high chemical resistance, a smooth surface that minimizes friction and fouling. The PFA lining acts as a barrier between the flowing medium and the valve's internal components, effectively shielding them from corrosive substances.
Yes, these valves generally require minimal maintenance. Regular inspection for wear and tear, along with routine cleaning, can help ensure their longevity.
Yes, PFA-lined butterfly valves can be designed to handle high pressures. It's important to verify the specifications with the requirements. It can bear a pressure up to 15 bar.
Typically, PFA-lined butterfly valves can operate in a temperature range from -40°C to +230°C, depending on the specific process conditions and other factors.
PFA lined butterfly valves are ideal for handling a wide range of corrosive and aggressive chemicals, including acids, bases, solvents, and high-purity liquids.
Yes, these valves find extensive application in Chlor-Alkali industries handling aggressive chemicals like hydrochloric acid and caustic soda.
Certainly! We offer Antistatic PFA lined Valves in Dupont's grade C 980 or 3M Dyneon's 8502 ESDZ. Choosing the correct material is crucial, as a grounding spring alone cannot dissipate static charge in a standard PFA grade, which is non-conductive.
We keep many valves in stock in our warehouse in Netherlands, India and USA and can ship them within a week.
Our butterfly valves are available in numerous sizes DN50 – DN 1000 ( 2” to 40”), providing a range of options to meet diverse industrial needs.