PTFE Lined Ball & Swing Check Valve
The Lined Ball Check Valve uses a corrosion-resistant lined spherical ball that seals effectively under reverse pressure. Known for its robust design, it provides excellent durability, chemical compatibility, and ease of maintenance.
The Lined Ball Swing Valve features a hinged disc that opens with fluid pressure and closes automatically to stop reverse flow. Its low-pressure drop and smooth flow characteristics make it ideal for applications requiring minimal turbulence.
Both valve types are available with PTFE or PFA linings, ensuring long-term service life in aggressive chemical applications. Whether you're operating in the chemical, pharmaceutical, or wastewater sectors, our lined check valve solutions deliver unmatched safety and performance.
Technical Specifications
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Size Range:
Ball type check valves : DN15-DN200 (1/2"-8")
Swing type check valve : DN15 – DN400 (1/2” – 16”) - Face to Face: EN 558-1 Series 7 / ANSI B 16.1
- 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) / HASTELLOY C 276 / INCONEL
- Body Type: Flanged or Wafer
- Liner : PFA / FEP / ETFE / PVDF / PPH
- Test standards: API 598, ISO 9393-2 or BS EN 12266-1-2003. (Hydro test, Pneumatic test, Spark test)
- Design: ANSI B16.34
Product Features
Highly Corrosion-resistance PFA lining
Made from 100% virgin high purity Grade A PFA, with optional antistatic PFA for enhanced safety.
High quality Trim Insert
Investment casted body
Made with investment castings, the metal housing ensures an intact and uniform lining.
Certified Quality
Available with CE / PED certification and Hydro test, Pneumatic test, Spark test, Helium test according to API 598 / BS EN 12266-1
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Frequently Asked Questions (FAQ)
A PFA-lined check valve is a valve designed to prevent backflow in a piping system, featuring a lining made of PFA polymer, which offers excellent chemical resistance and high-temperature capabilities.
Both swing check valves and ball check valves are designed to allow fluid flow in one direction only, preventing backflow. However, they differ in their mechanisms:
Swing check valves use a hinged disc that swings open to allow flow and closes to prevent backflow. They are known for their low pressure drop and minimal turbulence.
Ball check valves use a spherical ball that seals against a seat to prevent backflow. They are known for their durability and longer lifespan due to their simpler design.
The choice between the two depends on the specific application and its requirements.
Yes, these valves find extensive application in Chlor-Alkali industries handling aggressive chemicals like hydrochloric acid and caustic soda.
We keep many valves in stock in our warehouse in Netherlands, India and USA and can ship them within a week.
Our check valves are available in numerous sizes
Ball type check valves : DN15-DN200 (1/2"-8")
Swing type check valve : DN15 – DN400 (1/2” – 16”)
