PTFE Seat PFA Coated Disc Butterfly Valves | Ultra-Pure Corrosion Defense

Key Features

1. Dual Fluoropolymer Defense

PTFE Seat: Resists 98% sulfuric/nitric acids and halogen gases (-20°C to 200°C).  

PFA-Coated 316L SS Disc: 500µm thick coating prevents pitting/corrosion under ASTM G48 testing, with Ra≤0.4µm surface smoothness for particle-free flow.  

2. Zero Contamination Guarantee

Full fluoropolymer barrier isolates media from metallic components.

3. High-Temperature & Abrasion Resilience

PFA coating withstands 260°C intermittent peaks.  

30% higher abrasion resistance than uncoated discs in slurry services.  

4. Bubble-Tight Sealing  

PTFE-to-PFA contact achieves ISO 5208 Rate A shutoff at 1.5x PN16 pressure.  

Fire-safe option: API 607 metal secondary seals.  

5. Maintenance-Optimized Design  

Wafer-style body with ISO 5211 pad enables 10-minute actuator swaps.  

Self-aligning disc prevents galling after 20,000+ cycles (ISO 9001 validated).

Technical Specifications

Body	Cast Iron  Ductile Iron  Carbon Steel  Stainless Steel  AL-Bronze
Disc	PTFE  Ductile Iron  Carbon Steel Stainless Steel  AL-Bronze       PFA coated
Lining	PTFE(Teflon)
Shaft	Stainless Steel  Monel K500
Seat	Integral PTFE
Pressure Rating	10/16Bar  ANSI 150# (Standard), Higher Ratings Available
Temperature Range	-20°C to 200°C - Consult for extremes
Actuator	Hand  Lever  Worm Gear  Electric  Pneumatic
End Connections	ISO 5211

Industry-Specific Applications

Semiconductor: Ultra-pure water (UPW), CMP slurry lines, etch gas control.  

Pharma: CIP/SIP systems, high-potency API transfer.

Surface Treatment: Chromic acid anodizing, PCB etching baths.

Chemical: Hydrogen peroxide, aqua regia distribution.

Why Engineers Specify Our Valves

Maintenance-Free Operation: PTFE-bushed shaft, encapsulated bearings, and corrosion-proof hardware.  

Seismic Resilience: Lug design absorbs pipe movement (IBC & OSHPD compliant).  

Retrofit Efficiency: Direct replacement for gate valves – 70% shorter installation time.  

Lifetime Cost Advantage: 3x longer service life vs. wafer valves in water hammer scenarios.

Conclusion:

Upgrade your critical flow control systems with the ultimate combination of corrosion resistance, purity assurance, and automated reliability. Request a quote or data sheetfor your specific PTFE Seat PFA Coated Disc Butterfly Valves with Ultra-Pure Corrosion Defense requirements today!