GENTLE UEF-4U TAC Nut-Clamp Fitting｜For 4×2.5 mm PU Tubes

• Secure Threaded Joint: M5×0.8 male thread—hand set, then snug with a wrench for vibration-resistant seating.
• Dual Rubber Washers (Face-Seal): One under the slotted plug + one under the M5 mounting seat for stable sealing under micro-vibration.
• Tube-Specific Fit: Optimized for 4×2.5 mm tubes; strong grip and pull-out resistance. Supports PU and nylon (PA).
• Durable & Reusable: Nickel-plated brass resists corrosion and wear; maintains sealing after servicing.
• Applications: Point tapping and test ports in automation circuits, high-frequency swaps on semiconductor fixtures, short hose links on robot EOAT, fast retrofits when converting legacy lines to PU/nylon.

Q1: What tube materials are supported?
A: PU 4×2.5 and nylon (PA) 4×2.5. Verify OD tolerance/hardness and run pull/leak tests.

Q2: Where are the two rubber washers located?
A: One beneath the slotted plug, one beneath the M5 mounting seat—both are face-seal positions.

Q3: Do I need PTFE tape or thread sealant?
A: Normally no—the face-seal is sufficient. If site practice requires it, apply a thin layer and keep sealant out of the flow path.

Q4: Is it reusable?
A: Yes. Inspect rubber washers and threads during maintenance; replace worn parts.

Q5: Is it suitable for high-frequency operation?
A: Yes. The dual rubber washers + plated brass build handles frequent cycling and micro-vibration.

Q6: Can it be used for vacuum or higher pressure?
A: Intended for clean, dry compressed air. For vacuum, higher pressure, or special media, validate material compatibility and proof pressure first.