1.5L Drysuit Inflation Cylinder

This 1.5L Drysuit Inflation Cylinder in brushed aluminium, also known as an Argon cylinder, is commonly used as an alternative drysuit inflation method for deeper and longer dives where helium is utilised as a diving gas.

It's an ideal size for CCR divers, covering longer decompression and multiple dives, compared to the smaller 6cf Aluminium Suit Inflation Cylinder or the 1L Steel Suit Inflation Cylinder.

It can optionally be used for Argon fills to add warmth to colder, even longer-duration dives. 

1.5L Drysuit Inflation Cylinder Specifications

• BtS M25 valve
• Cylinder make: Luxfer
• Working pressure: 200bar
• Weight (empty): 2.05-2.08kg
• Buoyancy (empty): +0.31kg
• Cylinder dimensions: height 32cm - diameter 13cm

Recommended practice for suit inflation systems

• Never allow the suit inflation cylinder to fully empty underwater
• Storing cylinders with at least 2 bars of pressure in them
• Keeping/transporting any empty cylinder with the valve closed
• Drying and capping valves when the regulator is not attached
• Periodic check against moisture/water buildup in the cylinder

Do suit inflation cylinders need testing?

Cylinders that may, during normal use, lose all gas pressure above ambient when underwater, such as side-mount, bail-out, marker buoy, buoyancy compensator, and suit inflation cylinders, are at a greater risk of water ingress and internal corrosion when empty.

If fresh water is present inside a cylinder, it can cause the wall to lose more than 2mm of its thickness within six months. In salt water, this loss can exceed 5mm. (Diving cylinder walls are typically between 2 and 5mm thick).

While testing of the diving cylinder remains at 2.5 years for an internal visual and 5 years for a full hydrostatic test in the UK, a more frequent visual inspection by a certified test centre for suit inflation cylinders is recommended.

Deliveries outside the UK


Due to aviation regulations, the cylinder and valve will be shipped disassembled. It will be the customer’s responsibility to have the cylinder and valve reassembled.

SHIPPING:

We aim to dispatch all in-stock items within 2 working days but will inform you of approximate delivery times should any item on your order be out of stock or on supplier backorder due to current manufacturing or transport delays caused by global shortages and/or impeded production.

Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information on delivery terms and returns.

Our current shipping rates are as follows:

• UK mainland orders £45 and over: FREE
• UK mainland orders under £45: £4.90 Fixed Rate
• Scottish Higland and Islands & Isle of Man: £9.90 Fixed Rate
• Channel Islands & Northern Ireland: £14.90 Fixed Rate
• European Union: £13.90 + 5% of order value (maximum £30)
• Rest of the World: £19.50 + 8% of order value (maximum £55)
• BFPO Post Codes: £20

INTERNATIONAL EXCEPTIONS:

For international orders containing weights, cylinders (excluding suit inflation bottles) and Suex scooters please contact us in advance before placing your order.

These products are not included in our global max-capped shipping rates and are only shipped outside of UK mainland after freight cost is calculated based on total weight, dimensions of parcel, location of delivery and the courier service used. We will let you know what this cost will be before processing any order.

All cylinders we ship within and outside of UK mainland are filled and tested on site before being emptied for dispatch. Cylinders shipped outside of the UK will be empty and will also have their valves removed, requiring reassembly after you receive delivery. Twinset manifolds and bands will also be removed and dispatched together with the cylinders for safe global shipping.

RETURNS & REFUNDS

We offer a 30 day return for any product sold under our Returns & Refunds Policy Please contact us before any return with your order number and date details. Receive our Returns Authorisation Form and instructions and enclose them with your return to expedite a refund. Detailed information is available in our Returns & Refunds Policy.

Email us at sales@dirdirect.com or call us on +44(0)1305 824 555

Note that all returned items are shipped at the customer's own risk and remain the customer's property until received by Underwater Explorers, so please ensure they are packaged well and use reliable postal services with tracking facilities. The goods will be inspected on arrival. 

Return postages are at your own cost and our outbound shipping costs (if items are sold with integrated basic shipping charges i.e. Free shipping for orders £45 and above) the UK shipping rate may be deducted from any UK mainland refund unless linked to a fault/defect claim. 

Please contact us with your order number and name before sending any returns to:

Underwater Explorers – Returns
Unit 1, Maritime Business Centre
Mereside, Portland
Dorset, DT5 1FD 
United Kingdom

Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information.