Breathing air hose Air Master™ Diving Umbilical

for airnitrile rubberchloroprene rubber

Product overview
Handling mixtures of oxygen, helium and nitrogen commonly used in diving and surface-supplied breathing applications. Designed for surface-supplied air systems used in recreational diving, salvage, oil-rig service and as control lines. Also suitable for certain SCBA applications including firefighting, barrier suits and mining.

Key points

• Kink-resistant construction for extended service life under normal operating conditions.
• Compatible with breathing gas mixtures containing oxygen, helium and nitrogen.
• Cleaning procedure: rinse hose length with water for 30s–1min; push a dry sponge plug through to remove water; push a second alcohol-soaked sponge; follow with 30s of air to purge.

Features and Benefits

• Cover: Type A (Chloroprene). Black. Perforated.
• Tube: Type C (Nitrile). Black.
• Working pressure (example): 7.76 MPa.
• Standards: Meets BS EN250:2014.
• Design factor: 4:1.
• Former designation: 33HB.

Parts / Variants (table)
Part # | Product # | Description | Maximum Working Pressure (psi) | Maximum Working Pressure (bar) | Inside Diameter (in) | Inside Diameter (mm) | Outside Diameter (in) | Outside Diameter (mm)
1/2X300-999 AIR DVG UMB 1000 | 33330052 | 1/2XRL 300-999 AIR MASTER DIVING UMBILICAL 1000 | 1 | 68.9 | 0.5 | 12.7 | 0.94 | 23.9
1/4XRL AIR RESPIRATOR 500 | 32321001 | 1/4XRL AIR MASTER RESPIRATOR 500 | 500 | 34.5 | 0.25 | 6.4 | 0.51 | 13

Technical specifications

• Brand: Gates Corporation
• Commercial name: Air Master™ Diving Umbilical
• Applications: Surface-supplied air systems for recreational diving, salvage, oil-rig service and control lines; suitable for SCBA applications including firefighting, barrier suits and mining
• Cover material: Type A (Chloroprene), black, perforated
• Tube material: Type C (Nitrile), black
• Working pressure (as listed): 7.76 MPa (variant values listed in table in psi/bar)
• Standards: Meets BS EN250:2014
• Design factor: 4:1
• Cleaning / cleanliness procedure: rinse length of hose with water 30s–1min; push a sponge plug through to remove water; push an alcohol-soaked sponge through; follow with 30s of air
• Former designation: 33HB
• Notable properties: kink-resistant, designed for extended wear
• Available variants: examples include 1/2X300-999 AIR DVG UMB 1000 (Product #33330052) and 1/4XRL AIR RESPIRATOR 500 (Product #32321001) with dimensions and pressures as listed above