Mini Air Tank Buying Pitfalls | Hidden Damage, Expired Testing, Ignoring Depth Limits

The failure rate of micro-dents at weld seams in steel tanks (e.g., after scraping against Indonesian coral reefs) is 6 times higher than that of carbon fiber; European EN inspections found that 30...

Steel vs. Carbon Fiber Cylinders | Weight and Diving Performance

Steel (chrome-molybdenum steel) has a high density; the 7L/230bar model has an empty weight ≈4kg, and a total weight ≈6.1kg when full (7L×230bar=1610L of air, weight ≈2.08kg); Carbon fiber (carbon ...

Portable Diving System Accessory Guide | Cylinders, Regulators, BCDs

Cylinders: Select aluminum (3L/200bar, empty weight 1.8kg, full weight 2.6kg) or carbon fiber (9L/300bar, empty weight 1.8kg). Avoid scratches; wipe dry after immersion in seawater. Regulators: Use...

Essential Accessories for Small Air Tanks | Valves, Cables, Mounts

Valves preferred are DIN inline valves (5/8-inch 17E thread, depth 46/55mm), pressure rated at 300bar (4350psi), installed with a dedicated wrench (torque 25-30N·m), featuring metal-to-metal seal l...

Aluminum vs. Steel Small Air Tanks | Weight, Durability, and Buoyancy Characteristics

Aluminum (6061-T6 aluminum) is lightweight. The 3L/200bar model has an empty weight ≈1.8kg, and a full weight (3L×200bar=600L air, weight ≈0.77kg) total weight ≈2.6kg; Steel (Chromium-molybdenum st...

Small Air Tank Types丨Aluminum, Steel, and Carbon Fiber Cylinders

Aluminum Cylinders (e.g., 6061-T6 Aluminum): Lightweight and corrosion-resistant, provides positive buoyancy after inflation (requires weights). Common 3L/200bar model has an empty weight ≈1.8kg; w...