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Charging hose 350b Oxygen
€279.60 tax incl.
( 233 € tax excl. )
Availability:
In stock
Reference:
94635
The UNDERSEA 5044-2 is a two-metre mixed gas charging hose for high-pressure oxygen, nitrox and trimix transfers at technical dive centre filling stations.
✓ Length 200 cm · Max WP 350 bar · Safety ratio 4:1 · G1/4F s/s O-ring fittings · Anti-whip
Green polyurethane over Kevlar braid and Nylon 66 core. Assembled to order by UNDERSEA Ltd, UK, since 1979.
Since 1979, UNDERSEA Ltd — based in Hamble, Hampshire — has manufactured gas infrastructure equipment for technical dive centres and commercial filling stations worldwide. The 5044-2 is their two-metre HP fill whip, designed for high-pressure oxygen, nitrox and trimix transfers. The distinctive green jacket follows the international colour code for oxygen service, enabling instant circuit identification at busy fill stations and eliminating the risk of connecting an oxygen-clean line to an air compressor.
Technical specifications
Multi-layer construction
- Inner core: Nylon 66 — inert to hydrocarbon contamination and oxidising gases
- Intermediate reinforcement: Kevlar braid for high tensile strength
- Outer jacket: green polyurethane (ISO oxygen service colour coding)
- Anti-whip protection along the full assembly length
Fittings and pressure ratings
- End fittings: G1/4 female × G1/4 female
- Fitting material: 316 stainless steel (marine grade)
- Seal type: O-ring face seal, oxygen-compatible at high pressure
- Assembled length: 2,000 mm (200 cm)
- Maximum working pressure: 350 bar
- Safety ratio: 4:1 — minimum burst pressure ≥ 1,400 bar
- Manufacturer reference: 5044-2
- Assembled to order — typical dispatch: 2–3 working days
Applications
The UNDERSEA 5044-2 connects cascade systems and compressor banks to cylinder manifolds or individual tanks at technical dive centres across the UK — from the cave diving community in the Mendip Hills to North Sea wreck diving operations. Its 200 cm reach suits both fixed fill station benches and semi-portable transfill rigs for nitrox, helium-oxygen trimix and pure oxygen partial-pressure blending. The green colour code reliably distinguishes oxygen-clean circuits from standard air lines at any multi-circuit fill station.
Key features
Oxygen compatibility and operational safety
- Oxygen-clean construction: Nylon 66 core and 316 s/s fittings are oxygen-service rated
- O-ring face seal: positive sealing under HP oxygen without ignition risk
- Green ISO colour code: immediate identification of O2 and nitrox/trimix circuits
- 4:1 safety ratio at 350 bar: structural assurance for critical pressure transfers
- Anti-whip: keeps the assembly under control if a connection releases unexpectedly
- Nitrox/trimix specification: differentiated from the black 5041 series (air only) by colour and materials
Documentation and compliance
94635
Data sheet
- Working pressure (b)
- 300b
- Compatible oxygen
- Yes
- Connection
- 1/4 GAS Female
- Colour
- Green
Specific References
- Manufacturer reference
- 5044-2
The UNDERSEA 5044-2 is a two-metre mixed gas charging hose for high-pressure oxygen, nitrox and trimix transfers at technical dive centre filling stations.
✓ Length 200 cm · Max WP 350 bar · Safety ratio 4:1 · G1/4F s/s O-ring fittings · Anti-whip
Green polyurethane over Kevlar braid and Nylon 66 core. Assembled to order by UNDERSEA Ltd, UK, since 1979.
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