Subsea: Pressure gauges below sea level

Underwater, pressure gauges are employed in various ways, including in submarines, (deep-sea) divers, scientific underwater research, repair of pipelines on the seafloor, or underwater oil wells. Underwater instrumentation must withstand high pressure and, of course, be waterproof. At EMVO Techniek, you can also find pressure gauges designed to perform under extreme pressure.

Pressure resistance and waterproofing

Whether it's submarines or other subsea activities and installations, pressure gauges must withstand extreme pressures underwater. The high water pressure at different depths requires not only pressure resistance but also waterproofing to prevent water from entering and disrupting measurements.

Depth measurement and pressure monitoring

In subsea environments, depths where activities take place vary, and water pressure increases exponentially with depth. Approximately every 10 meters equals about 1 atmosphere of pressure. At 10 meters, the pressure is already twice as big as at the surface; at 20 meters deep, three times, and so on. Pressure gauges play an essential role in measuring water pressure, vital for the safety and performance of subsea installations. Whether monitoring depth, controlling ballast, or ensuring pressure levels in different compartments: pressure gauges assist in accurately monitoring pressure changes.

Safety and structural preservation

The pressure monitoring provided by pressure gauges contributes to the safety of the crew and the preservation of the structural integrity of subsea systems. This is crucial to prevent damage to the hull and other components due to external water pressure. EMVO Techniek delivers pressure gauges that meet the highest standards for safety and reliability.

Balance and pressure regulation

Subsea vehicles like submarines utilize ballast tanks filled with water or air to control buoyancy. Pressure gauges measure the pressure in these tanks, enabling precise balance and pressure control for the ascent or descent of subsea vehicles.

Internal air pressure regulation

Underwater environments impose specific requirements on pressure regulation within underwater vehicles. Pressure gauges play a role in maintaining comfortable pressure levels for the crew but also prevent the vehicle's structures from being stressed by pressure differences between the inside and outside.

Pressure gauges and pressure transmitters

Often, in subsea applications, pressure gauges are part of pressure transmitters used to measure pressure at great depths underwater. These instruments must be able to reliably function in demanding environments with high pressure, low temperatures, and corrosive saltwater conditions.

Would you like to know more?

Feel free to contact EMVO Techniek for more information about all the pressure gauges we supply. Call us at +31(0)413-473037 or email us, or use the chat if it is online during office hours.