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Description
Figurtech's LT Series quick-seal connectors are the critical interface between your leak tester and your test part. Engineered for rapid, bubble-tight connection without tools, they eliminate the most common source of fixture-related test variation: the seal itself.
Why the Connector Matters
Even the most sensitive leak tester produces unreliable results if the connection between the instrument and the test part leaks or varies between cycles. LT Series connectors are designed specifically for airtightness testing — not adapted from fluid fittings — with sealing geometries, materials, and operating cycles optimized for production-line use.
Model Selection
| Model | Sealing Method | Operation | Range | Max Pressure |
|---|---|---|---|---|
| LT-D02 | OD clamp (external) | Lever handle | Φ0.80 – Φ31.0 mm (24 sizes) | 9 bar |
| LT-D01 | ID expand (internal) | Lever handle | Φ9.5 – Φ24.4 mm (15 sizes) | 9 bar |
| LT-KZ02 | Claw OD clamp | One-hand snap | Φ6 – Φ52 mm (10 sizes) | 50 bar (stainless steel) |
| LT-G01 | Petal ID expand | Lever handle | Φ6 – Φ52 mm | 9 bar (zero axial force) |
| LT-Q01 | Pneumatic ID expand | Automated pneumatic | 7.7 – 78.0 mm (8 sizes) | 9 bar |
| LT-LW01 | Internal thread | Pneumatic quick-connect | Standard threaded ports | 9 bar |
| LT-LW02 | External thread + lever | Press-lever lock | Standard threaded ports | 9 bar |
Typical Applications by Connector Type
- LT-D02 (OD clamp): Water-cooled heat sinks, capillary tubes, automotive housings
- LT-D01 (ID expand, no axial force): Medical soft tubing — protects tube walls from deformation
- LT-KZ02 (stainless, 50 bar): EV battery trays at 400 kPa, high-pressure capillary testing at 700 kPa
- LT-G01 (zero axial force): EV liquid-cooling bent tubes — thin-wall aluminum protection
- LT-Q01 (pneumatic): Fully automated lines, robot-integrated fixtures
Key Specifications
| Parameter | Specification |
|---|---|
| Standard body material | Anodized aluminum alloy |
| High-pressure model (LT-KZ02) | Stainless steel, up to 50 bar |
| Standard seal material | NBR (Nitrile Butadiene Rubber) |
| Service life (LT-KZ02 validated) | ≥ 500,000 cycles |
| Pressure range (standard models) | 3 – 9 bar |
| Overall pressure range (full series) | −100 kPa to 50 bar |
Why LT Series?
- Designed for leak testing, not fluid handling: Sealing geometry and materials are optimized for gas-tight, repeatable airtightness test connections
- Zero-axial-force options: ID-expand models apply no axial or lateral force — essential for soft tubing, thin-wall aluminum, and fragile medical parts
- 500,000-cycle validated: LT-KZ02 stainless models are production-validated at high-volume automotive and EV lines
- Full automation compatible: LT-Q01 pneumatic models integrate directly into robotic cells and automated fixtures
- Broad size range: 24 sizes in OD-clamp models alone — covers micro capillaries to large enclosure ports
Specify your tube OD or ID, port geometry, and test pressure when ordering. Custom sizes and seal materials (Viton, silicone) are available on request.
Request a Quote
Share your application details and our team will follow up with a tailored quotation.