Valve member for a butterfly valve

The valve member comprises a sealing disc (1) having opposed trunnions (2) at or adjacent one face of the disc to provide an offset axis of rotation for said disc within the valve body (5), and a load-equalising member (3) connecting the trunnions to provide, in combination with said disc, an anti-d...

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Bibliographische Detailangaben
1. Verfasser:	GEORGE AUBREY FELTON
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The valve member comprises a sealing disc (1) having opposed trunnions (2) at or adjacent one face of the disc to provide an offset axis of rotation for said disc within the valve body (5), and a load-equalising member (3) connecting the trunnions to provide, in combination with said disc, an anti-deformation arrangement which, in use, restricts flexing of said disc. Preferably the valve member is designed so that the fluid flow is towards that face of the disc opposite to said one face, in which case, said load-equalising member acts in tension. Said load-equalising member is preferably of fixed construction, e.g. a flat plate (3), and may incorporate means (7) Fig. 3, (not shown) for preloading.