Three-way poppet valve with hollow stem

Details Three-way poppet valve with hollow stem Three-way poppet valve with hollow stem

1989-07-27

1990-04-10

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

13762527, 25112907, F15B 13044

Patent

active

049151347

ABSTRACT:
A valve assembly having a single stem slidably supported within a bore formed in a one-piece valve body provided with three ports which communicate with the bore at axially spaced locations therealong. The axially centermost port functions as a load port. The valve stem has a single valve poppet mounted thereon in encircling relationship thereto, which valve poppet is axially movable between a pair of opposed valve seats formed on the valve body for controlling communication between the load port and the bore. The stem has a passageway extending axially therethrough to maintain a balanced pressure axially of the valve stem.

REFERENCES:
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patent: 4566490 (1986-01-01), Neff
patent: 4574844 (1986-03-01), Neff et al.
patent: 4823842 (1989-04-01), Toliusis
patent: 4842020 (1989-06-01), Tinholt
Skinner K4M valve brochure (9 pages).
Mac 35 Series publication, Mac Valves, Inc. 1986, 5 pages.
Mac 100 Series publication, Mac Valves, Inc. 1983, 4 pages.
Mac 200 Series publication, Mac Valves, Inc. 1983, 4 pages.
Mac 45 Series, Mac Valves, Inc. 1986, 5 pages.
Mac 900 Series, Mac Valves, Inc. 1983, 2 pages.

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