CUSTOM ITEM: Tubing Connector Nuts, low pressure, 1/8 inch, PEEK, Blue with 1/4-28 screw threads, for use with flange free, polymeric tubing. ARE-Applied Research brand. Bulk Price.
Additional Info:
The 45308‑B PEEK Tubing Connector Nut is a low-pressure fluidic fitting designed for connecting 1/8 inch OD flangeless polymeric tubing in HPLC systems and other fluid handling applications. This finger-tightened connector nut provides a reliable, leak‑free connection without the need for tubing flanging.
Manufactured from blue PEEK (polyether ether ketone), this fitting offers enhanced mechanical strength and chemical resistance compared to standard thermoplastics, making it suitable for applications requiring greater durability and broader solvent compatibility.
✅ Key Benefits
Flangeless Connection Design Eliminates the need for tubing flanging
Finger-Tight Installation Quick, tool-free connections
Standard 1/4‑28 Thread Compatibility Fits common low-pressure HPLC ports
High-Performance PEEK Construction Offers superior chemical resistance and mechanical strength
Color-Coded Identification (Blue) Supports system organization and flow path identification
Optimized for 1/8" Tubing Systems Ideal for higher flow, low-pressure applications
Performance & Design
Material: Blue PEEK
Excellent chemical resistance
High mechanical strength
Broad solvent compatibility
Improved durability vs Delrin
Connection Type:
1/4‑28 UNF threaded nut
Designed for flangeless tubing systems
Engineered for:
Reliable low-pressure sealing
Extended service life under chemical exposure
Consistent performance in demanding environments
System Role & Integration
Connects 1/8" OD polymeric tubing to system ports
Requires separate ferrules for proper sealing
Used in:
Low-pressure HPLC systems
Solvent transfer and delivery lines
Applications requiring higher chemical resistance than Delrin
⚠️ Usage Notes
Tubing must NOT be flanged (flangeless only)
Ferrules are required for proper sealing
Compatible with 1/4‑28 UNF ports
Designed for low-pressure applications only
Pressure Limit: ~500 psi (34.5 bar)
Maximum Temperature: 100°C
Specifications
Product Type: Tubing Connector Nut
Material: PEEK
Color: Blue
Tubing Size: 1/8 inch OD
Thread Type: 1/4‑28 UNF
Connection Type: Flangeless
Pressure Limit: ~500 psi (34.5 bar)
Max Temperature: 100°C
System Type: Low pressure
Brand: ARE‑Applied Research™
Packaging: Bulk (Custom Item)
Resources & Ordering Options
Custom Item Pricing Information