FE External Sealing Connection Tool
Pneumatic seal-only connector for fast leak-tight external connections to tubes and threads in automated and semi-automated test processes.
- Instant, non-marring, leak free external connections.
- Uniform sealing for a leak tight, quick connection, even over threaded, rough or oily surfaces.
- Ideal for automated processes and high volume production testing.
NOTE: When connecting to threaded applications, the FE Connector must be provided with pilot pressure of 400-600psi. FasTest recommends using a Pilot Booster.
ICON™ | Intelligent Connection Technology
ICON™ sealing connection tools generate data and provide LED feedback to improve sealing connection accuracy, maximize production efficiency, and optimize tool maintenance. Available for select models. Learn more.
Designed For: air testing, gas testing, liquid testing, and other related processes.
FE Datasheet: Click Here
FE Operating Instructions: Click Here
FE Main Seal Replacement: Click Here
FE Rebuild / Repair: Click Here
Product Video: Watch Here
How to Calibrate FE ICON - SSR Dual Point Calibration: Watch Here
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The External Seal-Only Connector for Tubes and Threads
The FasTest FE is an external seal-only connector that makes instant, non-marring, leak-free connections to the outside of tubes and threaded features up to 500 psi (34 bar). Rather than threading onto the part, the FasTest FE seals against the outer surface — so it connects in seconds without marring, scratching, or wearing the component, even over threaded, rough, or oily surfaces.
Uniform sealing is the FasTest FE’s defining strength: the seal applies even force around the full circumference of the tube or thread, producing a leak-tight connection on surfaces that would defeat a rigid fitting. This makes it well suited to high-volume automated production testing of air, gas, and liquid systems, where speed, consistency, and part protection all matter.
The FasTest FE connects to a wide range of external features — straight, swaged, expanded, flared, beaded, barbed, and formed tubes, JIC 37° and ORFS swivel nuts, NPT, BSPT/BSPP, and metric external threads, 45° flare, and compression fittings. The series spans multiple sizes, starting with the FasTest FE01, so the connector can be matched precisely to the tube diameter or thread being tested.
When connecting to threaded applications, the FasTest FE requires pilot pressure of 400–600 psi to fully energize the seal; FasTest recommends pairing it with a Pilot Booster for these applications. The FasTest FE is also available with ICON™ intelligent connection technology, adding seal verification, safety interlocks, and real-time data for PLC-integrated automated stations.
The Problem the FasTest FE Solves
Making a fast, repeatable external connection for leak testing is difficult with rigid fittings — especially on imperfect surfaces:
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Threading marks and wears parts: Threading a test fitting onto a finished part marks the threads and wears them over repeated cycles — eventually scrapping good components. The FasTest FE seals externally without threading, so it doesn’t mar the part.
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Rough and oily surfaces leak: A rigid fitting needs a clean, precise sealing surface. On threaded, rough, or oily tube ends, surface imperfections create leak paths. The FasTest FE’s uniform seal conforms to these surfaces for a leak-tight connection.
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Many feature and thread types: Production lines test a wide variety of tube features and external threads. A single rigid fitting can’t cover that range, but the FasTest FE seals over many feature types with one connector family.
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High-volume automation: Manual threaded connections cap throughput and add operator variation. The FasTest FE’s instant external seal and pneumatic actuation are built for automated, high-volume production.
The FasTest FE solves all of this with an instant, non-marring external seal that conforms to threaded, rough, and oily surfaces, covers a wide range of features and sizes, and is ready for automated production testing.
Key Features
Instant, Non-Marring External Seal
The FasTest FE seals against the outside of a tube or thread in a single motion — no threading, no wrenching, no thread tape. Because it seals externally without rotating onto or compressing the part, it does not mar, scratch, or wear the component, protecting finished, high-value parts across thousands of test cycles. Connections take seconds instead of the time a threaded fitting requires.
Uniform Sealing on Threaded, Rough, or Oily Surfaces
The FasTest FE applies uniform sealing force around the full circumference of the feature, producing a leak-tight connection even over threaded, rough, or oily surfaces that defeat rigid fittings. This uniform seal is what lets the FE connect reliably to as-formed tube ends and finished threads without a precisely machined sealing surface.
Built for Automated, High-Volume Production
With pneumatic, semi-automated, and fully-automated actuation, the FasTest FE integrates into automated test cells where consistency and throughput matter. The same connection quality on every cycle eliminates the operator-to-operator variation of manual threaded connections, making it ideal for high-volume air, gas, and liquid testing.
Wide Feature & Thread Coverage — Including the FE01
The FasTest FE connects to straight, swaged, expanded, flared, beaded, barbed, and formed tubes; JIC 37° and ORFS swivel nuts; NPT, BSPT/BSPP, and metric external threads; 45° flare; and compression fittings. The series is offered in multiple sizes — starting with the FasTest FE01 — so the connector matches the exact tube diameter or thread being tested.
Pilot Pressure for Threaded Applications
For threaded applications, the FasTest FE requires 400–600 psi of pilot pressure to fully energize the seal against the thread. FasTest recommends pairing the FE with a Pilot Booster for these applications, ensuring a consistent, leak-tight seal on threaded parts.
ICON™ Intelligent Connection Technology
The FasTest FE is available with ICON™ for select models, adding SURE SEAL™ digital seal verification, LED feedback (green = good connection), safety interlock signals, and real-time data output — giving automated lines a verified-seal handshake to the PLC before each test cycle begins.
Technical Specifications
| Specification | Detail |
|---|---|
| Product Type | External seal-only connector for tubes and threads (non-marring). |
| Connects To | Straight, swaged, expanded, flared, beaded, barbed, and formed tubes; JIC 37° and ORFS swivel nuts; NPT, BSPT/BSPP, and metric external threads; 45° flare; compression fittings. |
| Models | Multiple sizes across the FE series, starting with the FE01 — matched to the specific tube diameter or thread. |
| Sealing | Uniform external seal — leak-tight even over threaded, rough, or oily surfaces; non-marring. |
| Max Pressure Rating | Vacuum to 500 psi (34 bar). |
| Threaded Applications | Require 400–600 psi pilot pressure; Pilot Booster recommended. |
| Actuation Method | Pneumatic | semi-automated | fully-automated. |
| Actuation Type | External tube / threads. |
| ICON™ Availability | Available with ICON™ for select models: SURE SEAL™ verification, safety interlocks, real-time data, PLC integration. |
| Designed For | Air testing, gas testing, liquid testing, and other related processes. |
| Documentation | Datasheet, operating instructions, main seal replacement, rebuild/repair, and FE/ME ICON user manual available for download. |
Where the FasTest FE Is Used
Tube & Line Leak Testing
The FasTest FE seals to the external features of tubes and lines — straight, flared, beaded, formed, and more — for air, gas, and liquid leak testing. Its instant, non-marring seal makes fast, repeatable connections without threading onto or marking the tube, ideal for high-volume tube and line production testing.
Threaded Component Testing
For finished threaded parts, the FasTest FE seals over the external thread without threading onto it, protecting the thread from wear. With the required 400–600 psi pilot pressure (via a Pilot Booster), it makes leak-tight connections to NPT, BSPP, JIC, ORFS, and metric threads for component leak and pressure testing.
Automated Production Test Cells
With pneumatic and ICON™-equipped configurations, the FasTest FE integrates into automated test cells and assembly lines, delivering fast, repeatable, verified external connections across high-volume air, gas, and liquid testing where manual threaded connections would bottleneck the line.
Automotive, HVAC-R & General Manufacturing
The FasTest FE’s wide feature and thread coverage makes it useful across automotive component testing, HVAC-R tube and line testing, and general manufacturing — anywhere external tubes or threads need fast, non-damaging leak test connections.
FasTest FE vs. a Threaded Test Fitting
| Threaded Test Fitting | FasTest FE | |
|---|---|---|
| Connection Time | Slow — thread on and off each part | Seconds — instant external seal |
| Part Damage | Marks and wears threads over cycles | Non-marring external seal |
| Rough/Oily Surfaces | Leaks without a clean surface | Uniform seal conforms to the surface |
| Feature Coverage | One thread type per fitting | Wide tube-feature + thread range |
| Repeatability | Varies by operator torque | Consistent seal every cycle |
| Automation | Difficult — manual threading | Pneumatic + ICON™ PLC integration |
| Threaded Sealing | Thread engagement seals | Seal energized by pilot pressure (Pilot Booster) |
| Seal Confirmation | None | ICON™ SURE SEAL™ available |
Frequently Asked Questions
Q: What is the FasTest FE?
A: The FasTest FE is an external seal-only connector that makes instant, non-marring, leak-free connections to the outside of tubes and threads up to 500 psi (34 bar). It seals against the outer surface — even over threaded, rough, or oily surfaces — without threading onto or marring the part.
Q: What is the FasTest FE01?
A: The FE01 is a size within the FasTest FE series. The FE line is offered in multiple sizes so the connector can be matched to your specific tube diameter or thread — the FE01 is the entry size in that range. Contact FasTest or use the configurator to confirm the right model for your part.
Q: What does the FasTest FE connect to?
A: Straight, swaged, expanded, flared, beaded, barbed, and formed tubes; JIC 37° and ORFS swivel nuts; NPT, BSPT/BSPP, and metric external threads; 45° flare; and compression fittings.
Q: Does the FasTest FE damage the part?
A: No — the FE makes non-marring connections and seals uniformly over the outside of the tube or thread, even on rough or oily surfaces, without scratching, threading onto, or deforming the part.
Q: Does the FasTest FE need pilot pressure?
A: For threaded applications, yes — the FE requires 400–600 psi of pilot pressure to fully energize the seal against the thread, and FasTest recommends using a Pilot Booster. Non-threaded tube connections do not require it.
Q: What is the maximum pressure rating?
A: The FasTest FE is rated for vacuum to 500 psi (34 bar).
Q: Can the FasTest FE be automated?
A: Yes — it offers pneumatic, semi-automated, and fully-automated actuation, and ICON™ adds seal verification and real-time data for automated test stations.
Q: How does the FasTest FE seal on rough or oily surfaces?
A: The FE applies uniform sealing force around the full circumference of the feature, so the seal conforms to surface imperfections — producing a leak-tight connection even on threaded, rough, or oily surfaces that defeat rigid fittings.
Q: How is the FasTest FE different from the FI?
A: The FasTest FE seals on the outside of a tube or thread (external seal-only), while the FI seals on the inside of a tube, bore, or thread (internal seal-only). Choose the FE for external connections and the FI for internal ones.
Q: What industries use the FasTest FE?
A: Automotive, HVAC-R, and general manufacturing — anywhere external tubes or threads need fast, non-damaging leak or pressure test connections for air, gas, and liquid testing.