Deep Drawn Tubes & Sleeves

Seamless deep drawn tubes and sleeves for valve, sensor and fluid-system applications — no weld line, bore and OD held to gauge.

A drawn tube is only as good as its tooling. We design and build every tube die in our own toolroom, control blank-holder pressure and lubrication for each alloy, and hold the bore, outside diameter and wall through multi-stage draws. Whether it is an expansion valve tube, a solenoid sleeve or a sensor fitting, the part that leaves our shop matches the print — and stays in tolerance across annual volumes.

How We Draw Tubes

Seamless Drawing at Aunov
Seamless Drawing

One-piece shells with no weld seam to leak, corrode or fail in fluid and refrigerant systems.

Bore & OD Control at Aunov
Bore & OD Control

Inside and outside diameters verified on every batch; wall variation held through multi-stage draws.

Alloy Flexibility at Aunov
Alloy Flexibility

Stainless 304/316, low-carbon steel and brass drawn with lubricants matched to each material.

At a glance
✓Applications — Expansion valves, solenoid valves, oxygen-sensor fittings
✓Materials — SUS304/316, SPCC/SPCE, brass H62/H65
✓Diameter range — Precision small-diameter tubes drawn to print
✓Depth ratio — Multi-stage draws for elongated tube geometries
✓Finishing — CNC end-trimming, deburring, laser welding
✓Quality — Gauge and vision inspection on every batch

Our Drawn Tubes & Sleeves Capabilities

Need custom Drawn Tubes & Sleeves? Send your drawing – quotation within 24 hours.

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