- Products
- Commercial divers’ equipment
- Compasses and watches
- Defence divers’ equipment
- Diving instrumentation
- Electrical diving equipment
- Escape and abandonment
- Gas and fluid systems
- Medical and safety equipment
- Recompression chambers
- Submarine intervention
- Submarine rescue
- Swimmer delivery
- Services
- Consultancy and personnel
- Engineering services
- Rescue and support
- Testing services
- Training services
- Ancillary dive gear
- Commercial equipment and tools
- Commercial helmets, masks and SCUBA
- Commercial rebreathers
- Commercial surface supply
- Diver's suits and harnesses
- Contaminated water diving system
- BIBS manifold block
- Confined space rescue stretcher
- Divex back pressure regulator
- Divex interlock
- Diving bell survival kit
- DMAC 015 kits
- Hy-Fex hyperbaric fire extinguisher
- Hyperbaric flame detector
- Hyperlite hyperbaric stretcher
- Oxygen kits
- Ultralite 2 BIBS mask
- DSAR rescue vehicles
- Launch and recovery systems
- Multi-role launch and recovery system
- Submarine rescue bell
- Client representatives
- Dive and ROV system audits
- Diving technical expertise
- Offshore personnel
- Rescue certification
- Commercial development courses
- Defence training courses
- Medical training courses
- Product specific courses
- Indian Navy Submarine Rescue System
- Black Carillon
- JFD successfully undertakes simultaneous operation [SIMOPS]
- Safety first for deep sea divers
- Archive
- JFD secures exclusive defence partnership in Turkey
- JFD awarded contract for submarine rescue equipment to China Shipbuilding & Offshore International Co, Ltd
- JFD launches new dual mode bite mouthpiece for rebreathers
- JFD's range of Diver Recovery Harnesses enhanced to comply with the new CE regulations
- Archive
- Divulged - Winter 2017
- Divulged - Summer 2017
- Divulged - Winter 2016
- Divulged - Summer 2018
- Divulged - Winter 2018
- UDT 2019
- Visit JFD at UI 2016
- Visit us at OTC Asia 2018
- Visit JFD on stand 338 at Underwater Intervention 2018
- JFD is exhibiting at ONS 2018
- JFD is exhibiting at OSEA 2018
- Join JFD at IDEX 2019
- See JFD at Subsea Expo 2019
- JFD takes on BALT Military Expo
- JFD presents complete defence offering at UDT 2018 in Glasgow
- Join JFD at ADIPEC 2018
- Visit JFD at Pacific 2017
- Visit JFD at MSPO 2018 in Poland
- JFD presenting at UDT conference
- JFD is exhibiting alongside James Fisher Nigeria at NOG
- JFD exhibiting at UDT 2016
- Visit JFD at Underwater Intervention 2019
- JFD is participating at Underwater Defence & Security
- See JFD at this year’s IMCA Annual Seminar
- JFD is exhibiting at LAAD Defence & Security 2019
- JFD LEXMAR is exhibiting at OSEA 2016
- JFD is exhibiting at Subsea Expo 2017
- Visit JFD at Indo Defence 2018 Expo and Forum
- Visit JFD on stand 403 at Underwater Intervention 2017
- JFD exhibiting at Europoltech
- JFD at IMDEX
- Visit JFD at UDT 2017
- Visit JFD at DSEI 2017
- JFD is exhibiting at OTC 2018
- JFD is exhibiting at Subsea EXPO 2018
- JFD is exhibiting at Sea Air Space 2018
- Visit JFD at DSA 2018
- See JFD at Defexpo 2018
- JFD is exhibiting at ADIPEC 2017
- Come see JFD at DSEI!
- See JFD at IMDEX Asia 2019
- JFD is at Oil & Gas Asia 2019
- Experience DSEI with JFD
- See JFD's full defence capability at MSPO 2019
- JFD is exhibiting at this year's Offshore Europe
- Visit us on stand 2S16 at Pacific
- See JFD at ADIPEC on stand 13572
- Explore our commercial capabilities at Bergen International Diving Seminar
Altitude testing and trials
JFD maintains altitude testing facilities for the safe and efficient testing of equipment and manned altitude trials.
We have six chambers, varying in size from a small 190mm chamber to a 3m x 8m large work chamber, all capable of simulating depths below sea level, but equally capable of creating high altitude atmospheres and environmental conditions. The large work chamber can reach up to an impressive 55,000ft.
| Trial within DDC 1 | NHC Saturation System | Trial within DDC 1 | Hannah Miley - Olympic Swimmer |
Electronic components, equipment housings, casings and insulation can be influenced by the effects of differential pressures at altitude resulting in compromised functionality, performance and safety. Altitude testing and trials are the main methods used to ensure products are fit for purpose, and can survive whilst remaining functional during extreme environmental changes.
Previous jobs include testing:
- Fuel tanks for aircraft
- Navigational equipment
- Refuelling equipment
- Aircraft lighting
- Electronic recording equipment
- Aircraft seating
- Battery casings
- Aircraft fire extinguishers
- Cameras and housing
- Heart monitors
- Defibrillators
Manned altitude trials can also be run in our comfortably furnished chamber, fully fitted with communications, built in breathing systems (BIBS), toilets, showers, bunks and DVD video monitoring.
Athletes, including champion swimmer Hannah Miley, have used our chambers to explore the benefits of hypobaric exposure in relation to naturally enhancing their performance.
Previous jobs include testing:
- Medical devices for use by people living in high altitude areas, such as:
- Pregnancy test sticks
- Ovulation kits
- Medical devices for use at high altitude in planes, such as:
- Blood glucose monitors
- In vitro diagnostic devices
- Blood coagulation monitors
| Chamber | Dimensions (mm) |
| 100bar | |
| 200bar | |
| 220bar | |
| 800bar | |
| Work chamber | 3000 x 8000 |
All pressures are digitally recorded real-time ensuring the most accurate readings and results can be obtained. In-chamber cameras permit easy monitoring and the capability for video recording is also installed. Equipment can externally activate via penetrator plates carrying video and communications signals, and power.
We also have on-site mechanical and electronic engineers to assist with the integration and set up of chambers and equipment. Our excellent reputation in this field of testing is based on recognition from the industry. Every job is different and we provide quality advice, expertise and willingness to assist clients even in extended 24/7 operations.
| Trial within DDC 1 | NHC Saturation System | Trial within DDC 1 | Hannah Miley - Olympic Swimmer |
Electronic components, equipment housings, casings and insulation can be influenced by the effects of differential pressures at altitude resulting in compromised functionality, performance and safety. Altitude testing and trials are the main methods used to ensure products are fit for purpose, and can survive whilst remaining functional during extreme environmental changes.
Previous jobs include testing:
- Fuel tanks for aircraft
- Navigational equipment
- Refuelling equipment
- Aircraft lighting
- Electronic recording equipment
- Aircraft seating
- Battery casings
- Aircraft fire extinguishers
- Cameras and housing
- Heart monitors
- Defibrillators
Manned altitude trials can also be run in our comfortably furnished chamber, fully fitted with communications, built in breathing systems (BIBS), toilets, showers, bunks and DVD video monitoring.
Athletes, including champion swimmer Hannah Miley, have used our chambers to explore the benefits of hypobaric exposure in relation to naturally enhancing their performance.
Previous jobs include testing:
- Medical devices for use by people living in high altitude areas, such as:
- Pregnancy test sticks
- Ovulation kits
- Medical devices for use at high altitude in planes, such as:
- Blood glucose monitors
- In vitro diagnostic devices
- Blood coagulation monitors
| Chamber | Dimensions (mm) |
| 100bar | |
| 200bar | |
| 220bar | |
| 800bar | |
| Work chamber | 3000 x 8000 |
All pressures are digitally recorded real-time ensuring the most accurate readings and results can be obtained. In-chamber cameras permit easy monitoring and the capability for video recording is also installed. Equipment can externally activate via penetrator plates carrying video and communications signals, and power.
We also have on-site mechanical and electronic engineers to assist with the integration and set up of chambers and equipment. Our excellent reputation in this field of testing is based on recognition from the industry. Every job is different and we provide quality advice, expertise and willingness to assist clients even in extended 24/7 operations.
