70 External Tube Feature Connection Tool

The Problem the FasTest 70 Solves

Sealing to a tube feature for leak or pressure testing is a different challenge than sealing to a thread — and traditional methods fall short:

• Tube features aren’t threads: Expanded, flared, beaded, and formed tube ends have no thread to engage. A threaded test adapter has nothing to grip, so manufacturers fall back on compression fittings, clamps, or improvised tooling that are slow and inconsistent.

• Dimensional variation across tubes: The OD, face, and ID of a tube feature vary from part to part and supplier to supplier. A fixed-position seal leaks when the feature falls outside a narrow tolerance band; the connection has to absorb that variation.

• Slow, repetitive connections: Compression fittings and clamped connections take time to install and remove, and they aren’t designed for the thousands of connect/disconnect cycles a production test line demands.

• Messy disconnection: When a fitting is removed, residual test media drips onto the part and fixture, creating cleanup and rework — particularly in fluid filling and pressure testing.

The FasTest 70 replaces all of that with a single push-on connector: a collet that locks over the tube feature, a floating piston that absorbs dimensional variation, and an internal shut-off valve for clean removal — turning tube-feature sealing into a two-second, repeatable step.

Key Features 

Fast, Safe, Repeatable Connections to Tube Features

The FasTest 70 connects to expanded, flared, barbed, beaded, and formed tube ends with a simple push-on motion — no tools, no thread tape, no clamping. Connections take seconds and are consistent across operators and shifts, giving production test lines the speed and repeatability that compression fittings and manual clamps can’t match.

Push-On Sleeve Actuation

Sleeve actuation is the simplest connection method in the FasTest lineup: push the FasTest 70 onto the tube feature to connect, pull the sleeve to release. One hand, one motion, no learning curve — ideal for high-volume stations where operators make the same connection thousands of times a shift.

Collet Locks Securely Onto External Tube Features

The FasTest 70’s collet grips over the tube feature and locks it securely for the duration of the test, holding the connection at full pressure without external clamping or fixturing. Because the collet grips the feature rather than rotating against a thread, there is no thread wear — the tube feature stays undamaged across repeated test cycles.

Floating Piston for Proper OD/Face/ID Sealing

Tube features vary dimensionally across production. The FasTest 70’s floating piston self-adjusts to seat the seal correctly on the feature’s outside diameter, face, or inside diameter, compensating for that variation. The result is a consistent, leak-tight seal even when the feature falls outside nominal dimensions — the difference between intermittent leaks and a repeatable connection.

Internal Shut-Off Valve Stops Flow on Disconnection

An internal shut-off valve closes automatically when the FasTest 70 is disconnected, stopping test media from escaping. This keeps the part, the fixture, and the operator clean, prevents media loss, and eliminates the residue that drives rework — especially useful in fluid filling and pressure testing.

ICON™ Intelligent Connection Technology

The FasTest 70 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. For automated stations, ICON™ provides the PLC handshake confirming the FasTest 70 has achieved a verified seal before the test cycle initiates.

Technical Specifications

Where the FasTest 70 Is Used

Automotive & Powertrain Tube Testing

The FasTest 70 seals to the expanded, flared, and formed tube ends found throughout automotive and powertrain assemblies — fuel, coolant, oil, and brake lines, and engine tube connections. Its fast push-on connection and clean shut-off valve make it well suited to high-volume engine and vehicle-system test lines.

HVAC-R Tube & Coil Testing

Refrigeration coils and HVAC tube assemblies terminate in beaded, flared, and formed tube ends that must be sealed for leak testing and system processing. The FasTest 70 connects to these features instantly, and the internal shut-off valve helps contain refrigerant and test media during disconnection.

Fluid Power & Hydraulic Tube Testing

Hydraulic and pneumatic tube assemblies with expanded or flared ends require proof and leak testing. The FasTest 70 grips the tube feature securely at 750 psi, replacing the compression fittings and clamps that slow down tube test operations and wear the sealing surface.

Appliance & General Manufacturing

Any production environment with external tube features that need fast, repeatable, non-damaging test connections benefits from the FasTest 70 — from appliance plumbing and tube assemblies to general industrial tube and line testing across a range of materials and feature types.

FasTest 70 vs. a Clamped or Compression Tube Fitting

Frequently Asked Questions

Q: What is the FasTest 70?

A: The FasTest 70 (Series 70) is a push-on, sleeve-actuated quick connector that seals onto external tube features — expanded, flared, barbed, beaded, formed, and custom tube ends — up to 750 psi (51 bar) for filling, pressure testing, and leak testing.

Q: What does the FasTest 70 connect to?

A: External tube features rather than threads: expanded, flared, beaded, barbed, formed, and custom tube ends. A collet locks over the feature and a floating piston sets the seal on the OD, face, or ID.

Q: What is the difference between the FasTest 70 and FasTest 60?

A: The FasTest 70 seals onto external tube features, while the FasTest 60 connects to external threads and fittings. Both share the same 750 psi sleeve-actuated platform with collet grip and floating piston — the 70 for tube ends, the 60 for threads.

Q: How does the floating piston help?

A: Tube features vary dimensionally across production. The floating piston self-adjusts to seat the seal correctly on each feature’s OD, face, or ID, so the FasTest 70 seals consistently even when the feature falls outside nominal dimensions.

Q: What is the maximum pressure rating?

A: The FasTest 70 is rated for vacuum to 750 psi (51 bar). For higher-pressure external connections, FasTest offers the HPB (6,000 psi) and TwistMate MET (10,000 psi).

Q: How does the sleeve actuation work?

A: Push the FasTest 70 onto the tube feature to connect — the collet locks over the feature and the seal engages automatically. To disconnect, pull the sleeve to retract the collet and lift the connector off. One hand, one motion, no tools.

Q: Does the FasTest 70 damage the tube feature?

A: No — the collet grips over the feature rather than rotating against a thread or clamping repeatedly, so there is no thread or clamp wear, even over thousands of test cycles.

Q: What is the internal shut-off valve for?

A: The internal shut-off valve closes automatically when the FasTest 70 is disconnected, stopping test media from escaping. This keeps the part and fixture clean and prevents media loss — especially useful in fluid filling and pressure testing.

Q: Is the FasTest 70 available with ICON™?

A: Yes, for select models. ICON™-equipped FasTest 70 connectors provide SURE SEAL™ digital seal verification, LED feedback, safety interlocks, and real-time data for PLC-integrated automated test stations.

Q: What industries use the FasTest 70?

A: Automotive and powertrain, HVAC-R, fluid power, appliance, and general manufacturing — anywhere external tube features need fast, repeatable, non-damaging leak or pressure test connections.