Quick Answer: Under what circumstances should a scuba cylinder be visually inspected?

A. NORMAL SERVICE. The visual inspection of every Luxfer scuba cylinder should take place at least once every twelve months, or at any opportune time under twelve months15. Some scuba cylinders need more frequent visual inspection, as indicated below.

How often should dive cylinders be visually inspected?

Diving cylinders should undergo a visual inspection every 2.5 years and a hydraulic test every 5 years from it’s date of manufacture.

How often should I take my scuba cylinder to be visually inspected padi?

Scuba cylinders should be visually inspected once a year by a qualified visual cylinder inspector. In a visual inspection, we empty the tank, take the valve off the top of the cylinder and take a look inside for corrosion, aluminum alloy build-up and moisture.

Why do we need to perform cylinder inspection?

We check the roundness of the tank checking for bulges and other things. We inspect the inner wall and crown for pitting, rust and particles, as well as the threads for cracking.

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How often do cylinders need to be tested?

Usually, cylinders must be retested or inspected every five or ten years. The date of each test must be stamped on the cylinder.

What is proper care for scuba cylinder?


  1. Always block or secure your tank so it can’t fall over easily or roll around, which can damage it, other equipment or you.
  2. Besides rinsing your cylinder and valve with fresh water and storing it in a cool place, don’t allow it to completely empty – always store it with air inside to keep moisture out.

How often do dive cylinders need testing UK?

Diving Cylinders are required to be Hydrostatically Tested (Pressure Test) every 5 years with an incremental visual inspection every alternate 5 years. Therefore your cylinder should be tested every 2.5 years alternating between the 2 tests.

How often do cylinders need to be hydrostatically tested for the integrity of the metal?

The Department of Transportation (DOT) requires all cylinders to be hydrostatically tested every 3, 5, or 10 years. The time allowed by law is determined by a variety of factors such as the type of material, the gas it contains, its age, and special permits the cylinder may have been manufactured under.

How often are scuba cylinders hydrostatically pressure tested?

How often do my tanks need to be tested? The DOT mandates a new hydrostatic test every 5 years after the initial test, some special tanks are 3 years hydro tests. Visual inspections are required yearly on scuba cylinders.

How do you inspect a cylinder head?

Unless you’re Superman, there is no physical way to visually inspect for flaws or feel a cylinder head for flatness, so the only correct way to measure your cylinder head is to use a straight edge and feeler gauge.

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Should I keep air in my scuba cylinder?

Never Store Your Scuba Cylinder Empty

Your scuba cylinder should always be stored with a minimum of 200 psi inside of it. If it is stored completely empty, the absence of pressure inside the cylinder can allow all sorts of things to enter into it. Most divers don’t think much in the way of their scuba cylinders.

What is hydrostatic test of cylinder?

A hydrostatic test consists of filling the cylinder with a nearly incompressible liquid, in most cases water, pressurizing the cylinder and examining it for leaks or permanent changes in shape.

How often do oxygen tanks need to be inspected?

The hydrostatic test date and inspector mark indicate when the cylinder was last tested and who tested the cylinder. Most oxygen cylinders are required to be tested every 5 years. This test ensures the cylinder can safety hold the maximum fill pressure.

What is hydrostatic testing for CO2 cylinders?


During a hydrostatic test, a pressure vessel is placed inside a closed system, usually a test jacket filled with water, and a specified internal water pressure is applied to the container inside this closed system.