Stories & Features
BioTight Fitting Instructions and Specifications
Nov 25, 2025
by
IDEX Health & Science
Press-Fit Ferrule and Lock Ring Combination Fitting Operating Instructions
If you've ever faced the challenge of finding reliable, easy-to-use fittings for low-pressure applications in tight or confined spaces, you're not alone. Engineers, lab technicians, and system designers often struggle to source components that offer both
performance and convenience. BioTight® from IDEX Health & Science fittings deliver a seamless user experience specifically for low-pressure environments in tight spaces.
How does it work? BioTight® is as straightforward to assemble as it is to use.
Follow These Simple Operating Steps:
- Slide the fitting onto your tubing and add the black-colored lock ring, ensuring the ridge feature faces the fitting for 1/8-inch tubing.
- Slide the ferrule tube onto your tubing.
- Next, place the components into your intended port, inserting the port thread into the fitting while keeping pressure on the tube.
- Continue until you feel the lock ring bottom-out in the port. It’s that simple.
Learn More About BioTight and View a Step-By-Step Operating Guide
Specifications
| Rated Working Pressure | LP-062: 200 psi LP-125: 100 psi |
| Working Port | ¼-28 Flat Bottom, IDEX Health & Science Standard Depth, Metal and Polymer |
| Compatible Tubing | 0.124” ± 0.003” OD Rigid Polymer 0.062 ± 0.001” OD Rigid Polymer |
| Compatible Fittings | LP-336 Specialized Fitting (Headless) |
| Fitting Size | Shorter and Narrower Head Size than Other ¼-28 Fittings |
| Material Type | PEEK |
| Torque Required | Light Fingertight (< 2 in. lbs.) |
| Over Torque | No Damage at 3 in. lbs |
| Repeat Uses | >100 |
| Assembly Method | Assembled by Customer or IDEX Health & Science (Manual or Port Swage) |
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