Valve
AssigneeWeir Minerals Australia Ltd.
InventorMark Doyle
Life of this patent
Estimating the term…
Abstract
A valve for use in controlling fluid flow in a flotation processing circuit is described, the valve including: a valve body; an inlet to the valve body; an outlet from the valve body; a member which is arranged in use to control fluid flow from the inlet to the outlet; and wherein the valve also comprises a bypass opening which facilitates fluid flow in one or both of two modes: in the first mode from the inlet to the bypass opening; and in the second mode from the bypass opening to the outlet.
Claims13
A dart valve for use in controlling fluid flow in a flotation processing circuit, the valve comprising:
- a valve body;
- an inlet to the valve body;
- an outlet from the valve body;
- a member which is arranged in use to control fluid flow from the inlet to the outlet;
- a bypass opening which facilitates fluid flow in one or both of two modes:
- (i) in the first mode from the inlet to the bypass opening;
- and
- (ii) in the second mode from the bypass opening to the outlet;
- and
- isolation valves which are associated with each of the outlet, inlet, and bypass opening.
A method of retrofitting a flotation processing circuit comprising:
- replacing one or more valves in the flotation processing circuit with a dart valve comprising:
- a valve body;
- an inlet to the valve body;
- an outlet from the valve body;
- a member which is arranged in use to control fluid flow from the inlet to the outlet;
- a bypass opening which facilitates fluid flow in one or both of two modes:
- (i) in the first mode from the inlet to the bypass opening;
- and
- (ii) in the second mode from the bypass opening to the outlet;
- and
- isolation valves which are associated with each of the outlet, inlet, and bypass opening.
Dependencies are inferred from the claim text.