Cobham's Naval Subsea and Surface Systems are specifically
designed to excel in the extreme and demanding marine environment
and meet the most stringent specifications of the US Navy including
Level I/SUBSAFE, MIL-S-901 shock and MIL-STD-167-1 vibration
requirements. Cobham's extensive portfolio of off-the-shelf
equipment, combining Cobham's technology expertise in gas
management and pneumatic actuation, has been serving the US Navy
for over 30 years. With this broad experience, Cobham can
customise solutions for a variety of surface and subsurface
Oxygen and Life Support
Cobham designs and manufactures oxygen life support products
such as flow control valves, oxygen regulators, pressure reducing
manifolds, and oxygen generator valves.
- The Manual Globe Valve - All U.S. Navy nuclear
submarines contain 3000 psi oxygen systems for life support. Cobham
supplies a variety of manual valves to control the flow of
high-pressure oxygen throughout the system. Cobham's manual valves
are used on all U.S. Navy nuclear submarines.
- The High Pressure Oxygen Regulator reduces high
pressure inlet oxygen in a range of 200 to 3,000 psig to an outlet
pressure of 125 psig. It is used in primary and emergency
life support systems on submarines.
- The 3423 series manifold is an Oxygen Pressure Reducing
Station Assembly installed on many U.S. Navy Submarines. This
manifold provides integrated control of pressure and flow to a
breathing apparatus installed at the outlet port.
- Oxygen Generator Valves - U.S. Navy nuclear submarines use
an electrolytic oxygen generator (EOG) to convert water into oxygen
and hydrogen gases. Cobham's valves are used to control the flow of
water, hydrogen and oxygen through the generator.
- Mechanical Actuators - U.S. Navy nuclear submarines store
high-pressure oxygen outside the pressure hull. The high-pressure
oxygen is brought into the submarine through a hull penetration
tube welded into the bulkhead. Emergency situations sometimes
require the oxygen supply to be turned off from remote locations.
Cobham's lanyard operated mechanical actuator is mounted on top of
the hand valve and is used to remotely shut off the oxygen
Leveraging its expertise in gas management for harsh
environments, the Cobham Halon Time Delay Valve is
the standard on U.S. Navy vessels in the halon fire suppression
systems. When the fire suppression system is activated a 30 or
60-second delay is required to allow the room to be isolated and
for personnel to evacuate. Cobham's halon time delay valve controls
the delayed release of halon.
Cobham has a long history in supplying the U.S. Navy with a
variety of environmental control systems such as solenoid valves,
escape trunk regulators, and mechanical shut-off valves that
conform to strict military specifications and excel in the extreme
and demanding marine environment.
- The Escape Trunk Regulator is used to achieve and
maintain hyperbaric pressure in the emergency escape chamber of
submarines. By equalising chamber pressure to that of the
surrounding environment, the passenger or crew can acclimatise
themselves to a new ambient pressure, allowing them to easily leave
or enter the sub at depth.
- Cobham's Latching Solenoid Valve is used on the U.S.
Navy Arleigh Burke Class Guided Missile Destroyer Turbine Braking
System. When the turbine braking system is activated, the latching
valve supplies pneumatic pressure to actuate the braking calipers.
Cobham also supplies the turbine braking system pneumatic high