Fluoropolymer Tubing

A: Their surface roughness is Ra < 0.2 μm, making them resistant to contaminant adhesion. They can withstand 121°C moist heat sterilization (30 minutes) or 134°C overheated water sterilization, and do not absorb pharmaceutical solutions, effectively preventing cross-contamination during pharmaceutical production and complying with GMP standards.

A: It can be rinsed with pure water, ethanol, or specialized cleaning agents. Avoid using sharp tools like steel wool to scrape the surface. If ultrasonic cleaning is required, control the power (≤300W) and time (≤10 minutes) to prevent damage to the tubing walls.

A: Ultra-low leaching: Metal ion (Na⁺, K⁺, etc.) leaching levels <0.01 ppb, preventing wafer contamination.
Anti-static: Can be modified with carbon nanotubes, with surface resistance controllable between 10⁶ and 10⁹ Ω, preventing particle adhesion.
Resistant to high-purity chemicals: Such as hydrofluoric acid, SC1/SC2 cleaning solutions (stainless steel is prone to corrosion).

A: Industrial endoscope: Pipes with a diameter ≥3 mm can be inspected using a 0.5 mm probe.
Pressure decay method: Pressurize to 1.5 times the working pressure, maintain pressure for 5 minutes; if the pressure drop exceeds 5%, replacement is required.

A: Material selection: PFA or PTFE can withstand 40% hydrofluoric acid (at 20°C), but FEP is only suitable for low concentrations (<10%).
Joint considerations: FFKM seals must be used to avoid swelling of fluorinated silicone rubber.

A: Compliance standards: Must pass FDA 21 CFR 177.1550 (PTFE/PFA) or EU 10/2011 food contact material testing.
Migration testing: Soak in 50% ethanol at 40°C for 10 days; non-volatile residues must be <0.1 mg/dm².

A: Minimum bending radius: PFA tubing requires a radius of at least 5 times the outer diameter (e.g., a Φ10 mm tube requires a radius of ≥50 mm), otherwise it may collapse.
Heat forming assistance: Heating with a heat gun to 200°C can reduce springback (PFA/FEP).