On July 25, 2019, the U.S. Naval Sea Systems Command (NAVSEA) published Detail Specification MIL-DTL-32632, establishing the criteria for the design, materials and functional capabilities of all "dilating disk" valves for flow control of Naval shipboard water, oil, and gas service. The specification was developed to explicitly classify low-torque, hysteresis-free control valve designs consisting of three or more rotationally closing plate segments.
While the specification is brand-agnostic, per Department of Defense (DoD) guidelines, Clarke Valve’s Shutter Valve, which has been licensed to Curtiss-Wright Corporation, is the only valve on the market that can currently meet this combination of key attributes for the U.S. Navy's goals to reduce weight and increase efficiency as part of their fleet modernization program. All valve products delivered to the U.S. Navy appear under the Curtiss-Wright brand name through its Target Rock business unit, located in East Farmingdale, NY.