Military spec (mil-spec) valves are pressure relief, reducing, and regulating valves manufactured to U.S. Department of Defense and NAVSEA specifications (e.g., MIL-V-24332, MIL-V-22549, MIL-V-20065) for use in Navy, Coast Guard, and defense shipbuilding systems. Dante Valve’s Danco line has supplied mil-spec valves to the U.S. Navy since 1980.
Military Spec Valves
The Navy’s choice for uncompromised quality, affordability and accelerated delivery
Danco Valves: Engineered for mission-critical dependability
When you run a Naval or marine vessel, the efficiency of its systems and the safety of your personnel can’t be compromised. We manufacture Danco pressure relief valves using the most advanced designs and the most reliable materials, for optimum performance results in today’s rigorous marine environments. Our approach also brings you the added confidence that comes with complete material traceability.
As a trusted vendor partner of the U.S. Navy since 1980, we’re proud of the role Danco valves have played in helping our military heroes perform their duties around the world.
A full line of products made to stringent specifications
Our premier Danco pressure relief valves are manufactured to MIL-V-24332 (liquid service), MIL-V-22549 (air and gas service), ASTM F1508 and MIL-V-20065 (steam service, Revisions C and D) specifications. Many are available for immediate fabrication and delivery, to keep your project on schedule or meet emergent requirements.
Shipboard Air Compressor Valves:
D40UU, D40HUU, D41-15UU, D41-30UU, D41-60UU, D41P-30UU, D42UU, D44UU, D447UU, D44PUU, D45MS, DA46MS, D48CUU, D48DUU, D48EUU, DL48CUU, D49-15UU, D49-30UU, D49-60UU
WARNING: This product can expose you to chemicals including chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Need a unique design?
We offer custom design and manufacturing for specialized Navy and marine applications, adhering to NAVSEA or custom compliance requirements.
Contact us for a quote.
Frequently Asked Questions About Mil-Spec Valves
A mil-spec (military specification) valve is a pressure relief, reducing, or regulating valve manufactured and tested to U.S. Department of Defense and NAVSEA standards, ensuring reliable performance in shipboard and defense environments.
Mil-spec valves must meet stringent government-mandated specifications (like MIL-V-24332 and MIL-V-22549), pass shock and vibration testing, and use traceable, corrosion-resistant materials. These standards are well beyond typical commercial or industrial valve requirements.
Military specifications are developed and maintained by the U.S. Department of Defense, with valve specs for naval and shipboard applications typically issued or approved through NAVSEA (Naval Sea Systems Command).
Yes. Mil-spec valves are built to withstand harsher conditions than commercial equivalents, including wide temperature swings, constant vibration, shock loads, and prolonged saltwater exposure without sacrificing performance.
Mil-spec standards are used primarily in defense and naval shipbuilding, but also apply to aerospace, government contracting, and any industry supplying equipment for mission-critical military or maritime systems.
A pressure relief valve automatically releases excess pressure from a system to prevent equipment damage, leaks, or catastrophic failure, protecting both machinery and personnel from overpressure conditions.
A well-maintained pressure relief valve can last many years in service, though its lifespan depends on material construction, operating environment, and adherence to routine inspection and maintenance schedules.
