Saturation Dive Record: China Sets Depth of 330.2 Metres

A monitor shows a diver with the Chinese navy walks out of a 19-cubic-meter cylinder to perform a saturation dive effort, a technique involving a pressurized environment that allows for longer dives while reducing the risk of decompression sickness. [Photo:]

Saturation Dive Record

Saturation Dive Record

Four divers with the Chinese navy have reached a depth of over 330 meters during a saturation dive effort, a technique involving a pressurized environment that allows for longer dives while reducing the risk of decompression sickness.

The four entered a 19-cubic-meter cylinder on January 4th and pressure was slowly increased to the equivalent of a depth of 300 meters.

Gao Jie, one of the divers, describes the experience in the deep sea.

“We thought 300-meter-deep seabed would be nothing but darkness, but when we opened the chamber, we found the visibility was good.”

Xu Xiao is the first diver to exit the chamber at a depth of 300 meters to check the diving bell and the environment.

“I felt like it was very cold and it was hard to breathe.”

Saturation diving technology enables human beings to withstand high water pressure by saturating human tissue with inert gas.

The divers were released from the cylinder yesterday after the decompression process was finally completed.

To date, eight countries, including Britain, the United States, and Russia have succeeded in 400-meter saturation dive.

Saturation diving is commonly used in deep sea exploration, in rescue operations and in engineering construction.

Chinese divers successfully reached 300 meters during a saturation dive for the first time last year, though have only experienced conditions over 490 meters during lab experiments.


Here at SMP we manufacture Saturation Diving Systems in the UK. For speciifcation and pricing of our systems please contact us on +44(0)1772 687775 or email

Saturation Diving Systems Manufactured in UK to IMCA Standards

Submarine Manufacturing are a UK based manufacturer and supplier of commercial diving equipment.  Our specialist knowledge is in the design, manufacture and installation of saturation diving systems which are rated for up to 300 MSW.

We have over 30 years experience of working within the commercial diving industry  and are well respected within the industry.  We are members of IMCA and ADC.  All of the diving equipment manufactured at our base in Preston, UK is individually certificated and designed to meet and where possible exceed the safety standards set down by IMCA.

With regard to saturation diving systems, we can offer the complete range of services from initial design incepetion to 3D CAD design, manufacture and onsite installation.  Our highly skilled team of engineers have vast experience in working with saturation diving systems and hyperbaric technology.  We are currently in the final stages of completing a saturation diving system for the Spanish Coastguard.

All of the commercial diving equipment that we manufacture is tested and certificated in-house.  We also use Lloyds as an indepent third party to certify our saturation diving systems and commercial diving equipment.

For more information visit: Saturation Diving Systems