Fluid handling – Systems – Multi-way valve unit
Patent
1984-12-05
1985-10-01
Schwadron, Martin P.
Fluid handling
Systems
Multi-way valve unit
13762547, F16K 1102
Patent
active
045439966
ABSTRACT:
A four-way diverter valve (1) is constructed with a rotatable butterfly valve element (20) within the cylindrical valve housing (10) and with said element having a pair of end heads (21, 22) joined by a generally planular central tapered plug (23) of longitudinal extent. The valve plug is modified by having mounted thereon between its ends a tubular diverter means (28) which comprises a pair of transversely extending pipe segments (25, 26), one mounted on each side of the plug, which forms a baffle. The valve housing (10) is connected to two pair of in-line ports (16-19) and stub pipes (31, 32) are fixedly mounted to the housing wall, communicate with a pair of diagonally opposed ports (16, 19), and extend inwardly from the housing wall toward the modified butterfly valve element (20) and the tubular diverter means (28). In normal valve position (FIG. 4), a generally straight-through fluid flow is provided. In reverse valve position (FIG. 5), the ends of the diverter pipe segments (25, 26 ) engage the ends of the stub pipes (31, 32) to provide a diagonally reverse fluid flow channel. Only two opposed cage bars (29) are utilized with the butterfly plug edges (24) sealing against the cage bars for substantially the full axial extent of the cylindrical housing, in normal valve position. The butterfly valve heads also seal against annular sealing surfaces (43, 44) on the housing. Simultaneously controllable sealing is accomplished both within and without the tubular diverter means (28).
REFERENCES:
patent: 368491 (1943-05-01), Ohno
patent: 810877 (1906-01-01), McKeown
patent: 1004053 (1911-09-01), Madgett
patent: 1534958 (1925-04-01), Huss
patent: 3319710 (1967-05-01), Heeren et al.
patent: 3973592 (1976-08-01), Cleaver et al.
Schwadron Martin P.
Starsiak Jr. John S.
Water Services of America, Inc.
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