PTFE Pipe
Overview
Polytetrafluoroethylene (PTFE) pipe is a specialized plastic piping widely used in water and wastewater treatment facilities due to its exceptional chemical resistance, thermal stability, and low electrical conductivity. PTFE pipe is particularly valued for its ability to perform reliably in harsh, corrosive environments where traditional piping materials like steel or PVC may deteriorate quickly.
Owing to these properties, PTFE pipe is often selected for conveying aggressive chemicals, handling high temperature fluids, and integrating into systems exposed to severe operating conditions. This makes it an essential component for chemical dosing, heat exchange, and sludge transport within municipal and industrial water treatment operations.
Common Applications
- Chemical dosing systems: For conveying various chemicals thanks to PTFE's high resistance to chemical attack.
- Sludge handling: Used in processes where the sludge may be highly acidic or corrosive.
- Heat exchangers: Ideal for transferring high temperature fluids due to excellent thermal stability.
Operator Experience
- Conduct routine inspections for leaks or physical damage.
- Periodic cleaning to mitigate buildup and obstruction.
- Replace seals as issues dictate, ensuring leak prevention.
- Minimized replacement frequency due to PTFE’s unparalleled chemical resistance, lowering life-cycle maintenance costs.
Major Components
- Pipe: Made entirely from PTFE, available in various diameters and wall thicknesses for different pressures and applications.
- Fittings: PTFE connectors and joints efficient for seamless transitions and connections.
- Seals: PTFE-based or compatible gaskets for highly leak-resistant and durable sealing at joints.
Design Criteria
- Flow rate (gpm or L/s): Determines required pipe diameter.
- System pressure (psi): Influences wall thickness selection.
- Chemical resistance: The specific chemicals conveyed can affect PTFE grade and pipe specification.
- Application environment: PTFE pipe selection may depend on temperature, mechanical stress, and exposure conditions.
Key Design Decisions
Specification Section
- MasterFormat Division 22 - Plumbing
- Section 221316 - Sanitary Waste and Vent Piping
Submittal + Construction Considerations
Popular Manufacturers and Models
- Parker Hannifin – Parflex PTFE Hose
- Swagelok – PTFE-Lined, Stainless Steel Braided Hose Assembly
- Chemours – Teflon PTFE Pipe
Alternative Equipment
- PVC Pipe: More cost-effective; suitable for non-aggressive, low temperature applications, but lacks the advanced heat and chemical resistance of PTFE.
- Stainless Steel Pipe: Offers high mechanical strength and thermal stability; used when strength is more important than chemical resistance, but is itself more vulnerable to corrosion by highly aggressive substances.
Real-World Tips
Connect with a Local Distributor
If you need help with sizing, system compatibility, maintenance planning, or sourcing, connect with your local manufacturer's representative. They can assist you in selecting the right equipment for your specific application and site conditions.
