How to find the right Luer-to-Threaded Straight Fittings AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Luer-to-Threaded Straight Fittings
- Thread identification
- Measure the thread and confirm the standard: NPT (tapered) or a straight UNF or metric thread. Common sizes like 1/4-28 UNF, 10-32 UNF, 1/8 NPT and M6 get confused.
- Sealing approach
- Use PTFE tape or sealant only on tapered NPT. Straight threads seal with an O-ring, a flat gasket or a ferrule. Using the wrong sealing method causes persistent leaks.
- Luer end
- Specify male or female luer, and lock or slip. This defines what the adapter accepts.
- Material
- Use 316 stainless or brass for metal ports and high torque. Use PP, nylon or PVDF for chemical service at low pressure. Plastic threads strip in metal ports if overtorqued.
Brands that matter
- Nordson Medical: Large range of threaded-to-luer plastic adapters.
- IDEX Health & Science: Luer adapters for 1/4-28 and 10-32 chromatography fluidics.
- Qosina: Threaded luer adapters.
- Cole-Parmer: Adapter kits in plastic and stainless.
What to avoid
- PTFE tape on luer tapers
- Assuming 'luer thread' means the same thing as an NPT or UNF port thread
Questions
Can I put PTFE tape on the luer side?
No. The luer taper seals by its own 6% cone. Tape only belongs on tapered pipe threads.