SYMPOSIA PAPER Published: 01 January 1960

Hydraulic Fluids for Use in High-Pressure Shipboard Equipment


Fire-resistant hydraulic fluid must be used in all Bureau of Ships hydraulic systems operating above 500 psi and containing an air accumulator. The Bureau of Ships has several years' experience with the phosphate ester type hydraulic fluid in elevators on aircraft carriers. This fluid, combined with suitable gaskets and seals, has given satisfactory service. Hydraulic systems on our new submarines are designed for 3000 psi. This high pressure places added requirements on the fluid. It must have not only the conventional properties of lubricity, stability, antifoam, and corrosion resistance; it must be thoroughly examined for any possible toxic effect upon ship's personnel. Toxicity is of utmost importance in light of present-day long periods of continuous submergence.

Author Information

King, H., F.
Bureau of Ships, Washington, D.C.
Coil, J., A.
USN, Bureau of Ships, Washington, D.C.
Price: $25.00
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Developed by Committee: D02
Pages: 59–70
DOI: 10.1520/STP46320S
ISBN-EB: 978-0-8031-6779-7
ISBN-13: 978-0-8031-6574-8