The Industry Standard for Heliox

Reavell’s high pressure air compressors have been at the forefront of compressed air technology for over a century. Throughout our history, we have offered solutions at every level of industry, from supplying standalone units, semi-complete packages, and complete turn-key packages to our end users.

Applications

This unique position means we understand the market requirements, as well as the challenges our customers face, at every level. That’s why our range of Heliox high pressure air compressors are engineered to meet the rigorous demands of a variety of specialist applications, including:

Marine / Offshore

Oil Rig maintenance
Dive Support Vessels
Underwater Surveys

Navy / Defence

Dive vessels for deep sea diving

Professional Dive

Deep sea diving

Reavell H5437 Heliox high pressure air Compressor.png

Wide Range of Configuration Options

Reavell provides a variety of configuration options that allow our equipment to be tailored to meet our customer’s specific needs. Depending on vessel requirements, our range of machines can be configured for either dedicated or dual-role operation.

Our range of standard configurations include:

• Dedicated Heliox transfer duty
• Dedicated Heliox reclaim duty
• Dual Heliox transfer & reclaim
• Dual Heliox transfer & breathing air duty
• Dedicated breathing air duty

Other configurations can be considered on request.

Comprehensive Standard Specifications & Equipment

Each package is equipped with a comprehensive standard specification list, which typically includes:

• Low lift combined suction / delivery valves specifically for low density gas operation
• Integral inter and aftercoolers with separators on each stage of compression
• Automatic isolating valve on cooling water inlet
• Electrically controlled automatic unloader/drainage (solenoid valve operated)
• Forced lubrication system “spin-on” replaceable filter
• Oil pressure gauge
• Low oil pressure protection switch
• Special gas type crankshaft oil seal assembly
• Gas type oil filler assembly
• Gas type crankcase breather piped back to suction
• Corrosion rods and safety bursting disc in cooling water jacket
• Combined temperature indicator with combined cut-out switch on 3rd stage delivery
• Combined temperature indicator with combined cut-out switch on final delivery
• Compressor non return valve
• Controlling pressure switch, (supplied loose)
• Drive arrangement – vee belt drive or direct coupled according to m/c size / type
• TEFV, IP55 electric motor
• Marine type (captive) anti-vibration mounts

Compressor packages are also commonly supplied with a range of ancillary equipment, such as:

• Starter / control panel
• Gas clean-up filtration pack
• CO (carbon monoxide) monitor (optional – supplied loose)
• O2 (oxygen) monitor (optional – supplied loose)

Note: Standard specification sets assume direct cooling from a suitable fresh water supply on-board. Alternatives for direct sea water cooling and cooling via sea water / fresh water heat exchanger systems are available on request.Standard instruments are conventional switch devices. As an alternative, transmitter devices (4 – 20mA) can be quoted for on request. Additional instrument options, such as water temperature indicators and cooling water flow-switch are available on request.The “Standard” specification listed above typically indicates the scope of supply for a dedicated Heliox transfer compressor. Machines that are configured for other duties may differ slightly in scope of supply (usually related to gas / air inlet equipment)

Benefits of a Complete Packaged Solution

Each fully assembled package is also equipped with a range of additional features that are designed to maximize safety, performance, and ease of use, including:

• Gas inlet O2 monitoring / trip (O2 content max allowed is 21%)
• Carbon monoxide monitor / trip
• Breathing air filtration systems
• Plug and play unit
• Complete packages design approved from DNV* / ABS
• Type approval for compressor block from DNV*
• Available in vertical and horizontal configuration to meet footprint requirements

*Products approved by this certificate are accepted for installation on all vessels classed by DNV GL

Features	Benefits
Low TCO	Low piston speeds reduce wear and increase component life, ensuring the lowest possible total cost of ownership
Low Power Consumption	Electric motor driven packages combine maximum energy efficiency with low operating noise
Compact Footprint	Compact skid designs minimize the installation space required, allowing for maximum layout optimization
Long Term Reliability	cylinder configuration, provides excellent balance and reliable performance in even the most demanding conditions ^oRobust design, featuring 90
Simple Installation	Can be installed in a range of industrial or marine environments, suitable for direct cooling by fresh or sea water or from an integral closed radiator circuit system
Ease Of Maintenance	Direct valve access without the need to remove other components provides quick and easy maintenance, allowing valves to be replaced in less than 5 minutes

Performance

In the below table you can see the detailed information about Reavell's Heliox dedicated compressors' performance.

Model	Frequency	Speed	Inlet Pressure		Delivery Pressure		Capacity		Drive
Model	Hz	rpm	bar.g	psi.g	bar.g	psi.g	m³/hr	CFM	kW	HP
5417	50	1480	0,276	4	200	2900	61,6	36,3	22	30
	50	1480			300	4350	59,5	35	30	40
	60	1180			200	2900	47,3	27,8	18,5	25
	60	1180			300	4350	45,2	26,6	18,5	25
5437	50	1480	0,276	4	200	2900	157,6	92,8	55	75
	50	1480			300	4350	155,4	91,5	55	75
	60	1180			200	2900	121,6	71,6	45	60
	60	1180			300	4350	119,4	70,3	45	60