BUTTERFLY VALVES

A valve disc (10) for a butterfly valve (2) is disclosed. The valve disc (10) comprises a disc body (22), a main groove (24) suitable for receiving a seal element (42), and an introduction groove (26). The disc body (22) comprises first and second faces (28, 30), an outer periphery (34), and at leas...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Kwasniewski, Pawel
Format:	Patent
Sprache:	eng ; fre ; ger
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:	A valve disc (10) for a butterfly valve (2) is disclosed. The valve disc (10) comprises a disc body (22), a main groove (24) suitable for receiving a seal element (42), and an introduction groove (26). The disc body (22) comprises first and second faces (28, 30), an outer periphery (34), and at least one engagement means (36) configured to receive a shaft (8) for coupling the valve disc (10) to a valve body (4) of the butterfly valve (2). The main groove (24) extends along the outer periphery (34) to form a continuous groove. The introduction groove (26) has a centreline (CL2) and extends from a groove mouth (58) opening in one of the faces (28, 30) of the disc body (22) to an intersection (60) with the main groove (24). The main groove (24) is so dimensioned and configured that a seal element (42) can only be inserted into or removed from the main groove (24) via the introduction groove (26). Optionally, the valve disc (10) is a single continuous body of material.