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 applications.
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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 supply.
Fire Suppression
- 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
Environmental control
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 pressure
regulator