Lined Valve

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All Teflon Lined (PFA / FEP) Valves, Pipes & Fittings

Product Range

  • Lined Ball Valves (Full / Reduced Bore)
  • Lined Butterfly Valves (Wafer / Lug / Flanged Type)
  • Lined Diaphragm Valves
  • Lined Plug Valves
  • Lined Pipes & Fittings (Elbows, Tees, Reducers, Spools)
  • Lined Sight Glass, Check Valves, and Custom Components

Base (Body) Material

  • Carbon Steel ASTM A216 Gr. WCB
  • Ductile Iron ASTM A395
  • Stainless Steel ASTM A351 Gr. CF8 / CF8M
  • Other materials on request

Lining Material :

Parameter PFA (Per Fluoro Alkoxy) FEP (Fluorinated Ethylene Propylene)
Purity Virgin unfilled
Standard ASTM D4895 ASTM D2116
Lining Thickness 3 – 5 mm (standard) 3 – 5 mm (standard)
Max. Service Temp up to +200 °C up to +180 °C
Chemical Resistance Excellent – suitable for almost all corrosive acids, solvents, and oxidizers Excellent – similar to PTFE, slightly lower temp range
Lining Method Injection / Transfer Molding, Fusion Bonded or Locked-in Construction Injection / Transfer Molding, Fusion Bonded or Locked-in Construction
Surface Finish Smooth, non-porous, anti-adhesive Smooth, anti-stick

Design & Pressure Rating

  • Design Standard : ANSI B16.5 / DIN PN 10 – PN 16 / JIS 10K
  • Pressure Class : 150 / 300 lb or equivalent
  • Hydrostatic Test Pressure : 1.5 × rated pressure
  • Leak Test : 100% Helium or Hydrostatic tested as per API 598 / EN 12266
  • Temperature / Pressure Limits : PFA: –29 °C to +200 °C, FEP: –29 °C to +180 °C (Derate pressure above 150 °C)

End Connections

  • Flanged Ends as per ANSI B16.5 / DIN EN 1092
  • Face-to-Face: as per ANSI B16.10 / ISO 5752
  • Drilling: as per customer specification

Valve Trim & Components :

Component Material / Lining
Ball / Disc / Plug SS 316 with PFA / FEP lining
Stem / Shaft SS 316 with encapsulation or coating
Seat / Seal PTFE / TFM / PFA
Gasket PTFE Envelope type
Fasteners SS 304 / 316
Actuator / Handle Lever / Gear / Pneumatic / Electric

Lining Quality & Testing

  • Spark Test @ 15 kV to check continuity of lining
  • Vacuum Resistance Test: 650 mm Hg minimum (for pipes/fittings)
  • Visual & dimensional inspection of liner thickness & uniformity
  • Adhesion and lock-in design tested for delamination resistance

Application Industries

  • Chemical & Petrochemical
  • Acid / Alkali Processing
  • Pharmaceuticals
  • Pulp & Paper
  • Water Treatment
  • Food & Beverage
  • Chlor-Alkali Plants

Standards & Compliance :

  • ASTM F1545 – Standard for Lined Piping Systems
  • API 598 – Valve Testing
  • ASME B16.5 / B16.10 / B16.34
  • DIN EN 1092 / ISO 5752
  • PED 97/23/EC (optional)

Documentation & Quality Assurance :

  • Material Test Certificates (EN 10204 – 3.1)
  • Hydrostatic & Leak Test Reports
  • Liner Material Batch Certificates
  • Dimensional Inspection Reports
  • Third-Party Inspection (if required)
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Teflon Lined Ball Type Check Valve

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Teflon Lined Diaphragm Valve

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Teflon Lined Plug Valve

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Teflon Lined Sight Glass

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Teflon Lined Wafer Type Check Valve

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