Broco HVR-4401 Oxygen Regulator For Underwater Burning Tool Kit non-return valve to prevent back

non-return valve to prevent back flow

Without a hot water and the shroud system

The two grommeted ventilation holes seen in the photo are on both sides of the bag

This same communications system is found in all our helmet models (with the exception of the SL 17B and 17C)

This simple yet unique design has a flow-by piston that mechanically balances the air of the first stage ensuring excellent breathing characteristics at full or low cylinder pressures

Broco HVR-4401 Oxygen Regulator For Underwater Burning Tool Kit non-return valve to prevent backThe Broco Oxygen Regulator is a two stage unit delivering the constant flow and high volume required for underwater burning. Brocos research demonstrates cutting efficiency depends more on oxygen flow than oxygen pressure. Brocos high volume regulator is offered to meet this basic requirement. Designed and manufactured for ease of operation, maximum efficiency, and years of rugged use, the Broco Underwater High Volume Oxygen Regulator is Underwriters