Naval vessels operate in brutal conditions. And that is during peace time. During combat, it is infinitely worse. Piping systems aboard Navy ships are particularly vulnerable to leaks when in bad weather or under attack. The Navy takes strong measures to minimize pipe system problems even before those piping systems are installed. Pipe flanges play a critical role in performing test on Navy valves.

Valves are a major focus

Valves in Naval piping systems are a common source of failure. Before being installed, valves and all connections, including pipe flanges, are tested thoroughly. Tests include hydrostatic pressure testing and shock testing. Hydrostatic pressure testing requires capping off one side of the valve with a compatible blind flange. Then, attaching another flange with an outlet to the other side of the valve. The outlet is then pressurized to a set amount and the valve checked for leaks.

Shock testing is more interesting. Valves are held in place and, for lack of a more technical term, “wacked” with a large force (like a big hammer). The valve is then tested to see if it functions as designed. We consulted for a Navy testing lab who was simulating the pressure a valve was to undergo while hanging from the connecting pipes. Flanges connected weights to the end of the Navy valves simulating the weight of the connecting pipes. Then the whole assembly was shaken and tested. Piping Supplies, being experts in Navy flanges, offered to witness the test … but we were told it was “top secret”.

At Piping Supplies, Inc, we have been manufacturing pipe flanges for the Navy and commercial piping industry for over 50 years. In that time, we have been honored to be part of testing which helps keep power plants, oil refineries, chemical plants and Navy ships safe. We look forward to continuing that tradition.