The Duolok® range of stainless steel tube fittings are two-ferrule design delivering leak-tight tube fitting performance that can have a significant impact on quality, productivity and cost. These high performance tube fittings have been designed to intermix and interchange with Swagelok® fittings component-by-component.
The Duolok® tube fitting design from First Hose comprises four precision-machined components: body, front ferrule, back ferrule and nut. When assembled, the double ferrule design has a staged, sequential swaging action, which compensates for the variation in tubing materials, including the hardness and thickness of the tube wall to provide leak-tight connections.
|Types||Two-ferrule compression fitting|
Fractional: 1/16 to 2 in
Metric: 3 to 50 mm
12,000 psig (825 bar)
@ 100° F (38° C)
-325° F to 1200° F
(-198° to 648° C)
|Materials||Stainless steel, carbon steel, brass, alloy 400, and UNS10276. Other materials are available on request.|
|Adapter Connections||NPT thread, BSP threaded, SAE threaded, AN fittings, tube and pipe socket weld, port connectors, tube stubs.|
|Configurations||Connectors, adapters, elbows, tees, crosses, caps, plugs|
|Special Fittings||Bored-through, dielectric, calibration, bulkhead, tube inserts|
Please contact our sales office for further advice.