Piston and Cylinder Actuated Polymer Mixing Valve
Abstract
A valve for introducing polymer into a moving water stream prior to flowing the water stream, with the polymer therein, onto a hull surface of an underwater vehicle. The valve comprises a venturi block having therethrough a venturi passageway for flowing water therethrough, a polymer inlet tube extending through the venturi block and into the venturi passageway for introducing the polymer into the water flowing through the venturi passageway. A shut-off plunger extends through a bore in the venturi block and is axially aligned with the polymer inlet tube, the plunger being reciprocally movable in the bore between a first position in which a head portion of the plunger extends into and seals closed the polymer inlet tube, and a second position in which the head portion of the plunger is spaced from sealing engagement with said polymer inlet tube. A piston and cylinder assembly moves the plunger between the first and second positions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 20, 1998
- Accession Number
- ADD019009
Entities
People
- William H. Nedderman Jr.
Organizations
- United States Department of the Navy