Reducing Flanges

Our PTFE Lined Reducing Flanges are essential components within the Lined Pipe & Fittings category, designed to create a secure, corrosion-free transition between two different pipe sizes. These fittings eliminate the need for complex, multi-piece reduction setups, ensuring the integrity and safety of your critical chemical pipeline while maintaining precise alignment.

Precision Engineering and Versatility

We offer an extensive range of sizes, guaranteeing you can achieve the necessary reduction for any line modification:

  • Construction: Fabricated from robust materials like IS 2062 (Fabricated), ASTM A 395 (DI), or ASTM A 216 (WCB), providing structural strength.
  • Size Range: Available in a vast matrix of combinations (e.g., 50NB to 25NB, 400NB to 200NB, as per our data sheet).
  • Flange Standard: All dimensions strictly adhere to ANSI B16.5 and ASA 150# specifications for reliable integration.
  • Lining Material: The reducing bore is seamlessly lined with PTFE (conforming to ASTM D-4895/4894), or other specialised polymers like PFA, FEP, PP, PVDF, and Antistatic PTFE, ensuring a completely inert fluid path.

Guaranteed Integrity and Testing

Every reducing flange is manufactured to tight dimensional tolerances (e.g., F ± 3.0 mm) and is subjected to rigorous quality checks to confirm the structural and lining integrity:

TestSpecificationResult
Hydro Test29.0 kg/cm2 after liningConfirms extreme pressure capability.
Spark Test15 KV DC after Hydro TestGuarantees 100% lining non-porosity for absolute chemical barrier protection.
Lining ThicknessAS PER ASTM F 1545Verified for long-term durability.

Choose our PTFE Lined Reducing Flanges for dependable, compact, and corrosion-proof solutions for pipe size transitions in your most demanding applications.

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