Cylinder and Tanks Services

Cylinder Services
Heavy duty machines ensure the most efficient operation with fastest turn around times for your tanks i.e. normal cleaning 25 minutes, drying 20 minutes, visual inspection with eddy current testing 30 minutes, re-qualification using water jacket testing 10 minutes.

We work computerized and wherever possible we rely on the latest technology in cleaning, testing and re-qualifying cylinders. Our inspectors are highly trained professionals with credentials from HAZMAT for hydrostatic testing and re-qualification of cylinders as well as S.D.I. (Scuba Diving International) for visual inspections.

We have Instructor trainers, Instructors and inspectors on staff and constant training and retraining makes sure that we all stay ahead on standards, changes and procedures.

Using only the correct and professional tools for each job has been our philosophy from the beginning and guarantees the results our customers accept.

Cylinder Services

Internal cleaning & drying
We are equipped with industrial tumbling and hot air drying machines for fast turn around times when cleaning cylinders. Weather you would like to remove odor or oil internally from a tank or you need to eliminate rust, our professional equipment takes care of all cleaning issues. We only use computer cut aluminum oxide chips to tumble tanks for greatest results with minimal wear and tear. O-ring glands are cleaned by specialized tools to ensure safety and reach maximum efficiency.

Visual Inspection
When it comes to visual inspections, DiveMix follows manufacturer’s recommendations as well as standards developed by S.D.I. (Scuba Diving International).

All visual inspections include:

External inspections for damages, pits, bows etc
Internal inspections with identifying and measuring pits, holes, neck damages & corrosion
Thread inspections with magnifying inspection pipe and Eddy Current Test (aluminum tanks only) for cracks and corrosion
Tanks complying with visual inspection guidelines have a sticker affixed

Eddy current inspection
professionally competent visual inspections are a key element in the proper maintenance of gas cylinders (such as those used for scuba diving and by firefighters) and the inspection of cylinder neck threads is an important part of the process.

Even the best trained and most experienced technician can miss or wrongly diagnose small imperfections, such as hairline cracks and folds in the neck/shoulder area of aluminum cylinders using hydrostatic testing alone. DiveMix uses Visual Plus, a non destructive testing device, identifies 100% of these defective cylinders using the latest in eddy current technology.

It eliminates human error and clearly identifies all types of cylinder damage and defects. More than an upgrade of existing technology, Eddy Current tests offer all-new computerized features that make it the best tool for inspecting cylinders made from all types of aluminum alloys now in use, including popular 6061 alloys favored by major global cylinder manufacturers. Visual Plus not only detects cracks it identifies corrosion, gouges, pits, folds, valleys, tool stops and other types of indications and it shows the differences among them on five different color-coded graphs, including both linear and three-dimensional views, on a computer screen.

Re-qualification by water jacket test
Hydro static water jacket test. Cylinder/ tank is enclosed and filled with water. It’s then placed inside a test jacket filled with water. Pressure is then applied internally to the cylinder, causing the cylinder to expand. The total and permanent volumetric expansions of the cylinder are determined by measuring the amount of water displaced by the expansion of the cylinder when under pressure and after the pressure has been released.

4 cylinder loading system (each cylinder tested individually) decreases testing time.
Automated test software calculates total, permanent and elastic expansion.
The test is performed at the touch of a button which eliminates the possibility of human error.
Test log and calibrated cylinder reports print in a clean - mistake free - professional looking form.

Cylinder marking as per standards i.e. stamp marking cylinder for hydrostatical testing and decal marking for visual inspections.

Valve service DiveMix offers valve services for most tank valves. Our valve test bank can run valve tests up to 420 bar for standard M25x2 and 3/4² valves

Re-valving Installing the valve to a cylinder is done by a torque wrench according to the valve manufacturers recommended torque. We always apply DOW Corning 111 molykote to the valve thread for lubrication and galvanic corrosion protection.

Oxygen cleaning DiveMix has all solvents, soaps, lubricants and tools necessary to convert SCUBA tanks to oxygen clean tanks. We follow T.D.I. (Technical Diving International) standards for converting tanks to oxygen service.

DiveMix Cylinder Service Contract

A complete Annual cylinder service for all of your tanks with Quality, Longevity and Cost in mind!

Tank Service per tank including:

1. Cleaning - Internal cleaning with aluminum oxide tumble wash, o-ring gland perfected and thread saver.
2. Hot air drying by industrial cylinder dryer.
3. Hydrostatic test with water jacket test method for determination of volumetric expansion (performed if needed based on current cylinder requalification criteria).
4. Visual inspection - Visual inspection including internal & external inspection for corrosion, pitting, dents, cuts, digs, gouges, leaks, fire damage, bulges, neck defects and thread inspection (aluminum cylinders with ultrasonic Eddy Current testing).
5. Re-valving - with DOW Corning 111 molykote to the valve thread for lubrication and galvanic corrosion protection.
6. Cylinder marking as per standards i.e. stamp marking cylinder for hydrostatical testing and decal marking for visual inspections.
7. Professional test report printout per test and cylinder outlining all test parameters and results.


Name *
Company
E-mail *
Phone
Country *
Requests *