Power-assisted valve, particularly for systems handling viscous

Details Power-assisted valve, particularly for systems handling viscous Power-assisted valve, particularly for systems handling viscous

1982-04-05

1984-07-03

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

13753311, 137DIG2, 251 634, F16K 31122, F16K 1504

Patent

active

044573405

ABSTRACT:
A power-assisted valve is provided which is particularly effective for systems handling viscous materials, such as certain metering systems. The check valve operates effectively even with highly-filled viscous resins used in such systems. The valve includes a valve seat and a valve ball which can be urged toward the valve seat to a closed position by a fluid-powered cylinder and piston. The piston rod is separate from the valve ball so that the ball can rotate relative to the valve seat.

REFERENCES:
patent: 1435396 (1922-11-01), Howland
patent: 1831404 (1931-11-01), Ayers

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