Our PTFE Lined Blind Flanges are essential components within the Lined Pipe & Fittings category, providing a secure, leak-proof, and chemically inert solution for permanently isolating or terminating the end of a process pipeline.1 They are crucial for system maintenance, future expansion points, or safely capping off aggressive media lines.
Robust Construction for Absolute Containment
These blind flanges are engineered to withstand the pressures and corrosive nature of industrial fluids while ensuring a $100\%$ inert barrier:
- Construction: Fabricated from durable IS 2062 steel (or equivalent high-strength material) to ensure mechanical integrity.
- Size Range: Available in a comprehensive range from 15 NB to 250 NB.
- Flange Standard: Designed to the highest dimensional standards, conforming to ANSI B 16.5 and ASA 150# specifications for direct integration with standard flanged pipework.
Advanced Fluoropolymer Lining
The end face, which comes into contact with the fluid, is fully lined and tested for integrity:
- Lining Material: Seamlessly lined with high-grade PFA (conforming to ASTM D-3307), FEP, PP, PVDF, or Antistatic PFA, providing a complete chemical barrier.
- Lining Integrity: The lining thickness is verified to ASTM F 1545 standards.
Guaranteed Quality and Safety
Every Lined Blind Flange undergoes rigorous testing to ensure a non-porous chemical barrier and structural durability:
- Spark Test: A 15 KV DC Spark Test is performed to guarantee 100% lining non-porosity after the hydrostatic test, confirming a defect-free chemical seal.4
- Visual Check: 100% Dimensional and Visual Check ensures precise fit and finish.
Choose our PTFE Lined Blind Flanges for dependable, permanent, and corrosion-proof isolation of your most critical chemical pipelines.