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Catalina S40 Aluminium Cylinder - 5.7 litre (40 cu ft) - 207 bar

Starting at: $399.00  $359.00
Save: $40.00 (10%)

  • Model: CY10545 / CY10394
  • Brand: Catalina Cylinders

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Product Description

Catalina S40 (5.7 litre, 40 cubic foot), 207 bar, Aluminium Cylinder with DIN/K Valve. High-grade aluminium constructed especially to meet Australian safety standards. Negatively buoyant when empty. Rugged enough for rental gear or sport diving.

Because of its highly regarded buoyancy characteristics, the Catalina S40 aluminium cylinder is a popular choice as stage/pony tank(s) by technical divers. For longer, deeper dives they often use these cylinders to carry a Nitrox mix (e.g. EAN50, 50% oxygen) to accelerate their decompression on accent. Some have a second Catalina S40 stage cylinder with 100% oxygen for use on their final decompression stops. The Catalina S40 is a great cylinder for doing this.

We supply a DIN to Yoke convertible, cross-flow valve as standard. The valves are made by Ocean Design. They are strong and reliable being made from really top quality materials. The valve regulator connection incorporates a threaded insert, which means it can equally be used for both INT bracket (Yoke) or DIN connection.

Note: If you require your cylinder unvalved, instead of a convertible DIN/Yoke valve, please specify when you order.

Valve Oxygen Cleaning:
The Catalina aluminium cylinders are supplied Oxygen (O2) clean, suitable for use with up to 100% oxygen. However, if you are planning to use the cylinder with Enriched Air Nitrox (Nitrox) mixes up to 100% oxygen, it's essential for the safety of the cylinder user and the person filling the cylinder that the valve be oxygen cleaned and prepared with special o-rings, seats, and grease designed for exposure to pure oxygen. The cylinder should then be banded with the familiar yellow and green Nitrox band/wrap/sticker, and an Oxygen Clean 'In Test' inspection sticker applied. The Scuba Doctor can do all of this for you as an add-on service.

Catalina S40 Scuba Cylinder Specifications

  • Working Pressure: 207 bar (20.4 MPA)
  • Test Pressure: 345 bar (34.5 MPA)
  • Material: High strength aluminium alloy 6061-T6
  • Catalina S40 SP12 TC-3ALM204
  • Water Capacity: 5.7 L
  • Tare: 7.2 kg
  • Neck Thread: 3/4 inch NPSM
  Dimensions Water Capacity Buoyancy*
Water Cap. Diam. Len. Empty
cu in lbs litre Full
500 psi
40 cf
5.7 litre
5.25 in
133.4 mm
24.9 in
633 mm
15.9 lbs
7.2 kg
351 12.6 5.7 -2.6 +0.6 +1.7

* Buoyancy is calculated with a standard K valve in seawater

Colour: Brushed Aluminium

All scuba tanks for delivery are sold EMPTY due to restrictions in place on the transportation of high-pressure cylinders. If you are picking up your order in-store, The Scuba Doctor will be happy to give you a FREE air fill.

Regulation and Inspection: Cylinders comply with Australian Standards and are stamped with the Australian Standards Authority Number. All Catalina seamless aluminium alloy compressed gas cylinders imported into Australia are manufactured in accordance with US Department Of Transport (DOT) 3AL and Transport of Canada (TC) 3ALM requirements. Every cylinder is inspected and tested by a DOT and TC authorised independent inspection agency.

International shipping: Not available.
Shipping within Australia: Email or call for prices.
Our standard freight fees do not apply.
All cylinders are shipped unfilled with the valve off.

Note: We will only ship cylinders to locations in Australia.

(07/21 LRB)

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