A diverter valve which includes a valve body, an inlet, a plurality of outlets, an internal cavity to which the inlet and the outlets are connected, and a valve member which is movably positioned in the cavity. The valve member includes a through bore which is configured to connect the inlet with a corresponding one of the outlets for each of a plurality of operative positions of the valve member. In operation of the diverter valve, the valve member is movable between its operative positions to selectively connect the inlet with any one of the outlets.

A mix manifold (16) includes a plurality of valves to control the flow of material therethrough. First and second valves (36a, 36b) are linked for simultaneous actuation. The first and second valves each include valve members (56a, 56b) disposed within and rotatable relative to seal bodies (58a, 58b). The valve members seal against the seal bodies and the seal bodies seal against the manifold. A solvent valve (36c) also includes a valve member (56c) in a seal body (58c). The first and second valves are configured to open only when the solvent valve is closed. The solvent valve is configured to open only when the first and second valves are closed. The solvent valve can rotate between a plurality of positions to control the flow of solvent to flowpaths downstream of the first and second valves.

A valve apparatus includes a valve block with a main flow path, a first valve installed on the valve block and connected to the main flow path so that when the first valve turns on, a first fluid is supplied from the main flow path to a process chamber via the first valve, and a second valve installed on the valve block and connected to the main flow path so that when the first valve turns off and the second valve turns on, a second fluid is supplied from the main flow path to a waste gas treatment system via the second valve. The main flow path is disposed parallel to a central axis passing through a center of the valve block and two opposing surfaces of the valve block perpendicularly thereto. The main flow path is disposed to be offset from the central axis toward the first valve.

A valve system for use with a cylinder having an extensible rod, includes first and second valve assemblies, each including an inlet/outlet port configured to selectively be coupled with a source of pressurized gas, a check valve biased toward a closed state and having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the inlet/outlet port and the check valve, and an inlet pilot port connected with the check valve for opening the check valve when supplied with pressurized gas. First and second pilot lines extend to the respective inlet pilot ports from respective outlet pilot ports of the opposite ones of the first and second valve assemblies. When pressurized gas is supplied to the inlet/outlet port of a valve assembly, pressurized gas is also supplied to the opposite inlet pilot port.

Various implementations of a firefighting valve assembly are disclosed. The firefighting valve assembly is especially suitable for fighting wildland fires. In some implementation, the firefighting valve assembly has a spatial profile that makes it easy to pack with long bundles of firefighting hose and easy to connect segments of firefighting hose as part of a hose lay. In some implementations, the firefighting valve assembly has a spatial profile that prevents it from inadvertently opening or closing when the hose is moved or pulled along the ground.

A valve system for use with a cylinder having an extensible rod, includes first and second valve assemblies, each including an inlet/outlet port configured to selectively be coupled with a source of pressurized gas, a check valve biased toward a closed state and having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the inlet/outlet port and the check valve, and an inlet pilot port connected with the check valve for opening the check valve when supplied with pressurized gas. First and second pilot lines extend to the respective inlet pilot ports from respective outlet pilot ports of the opposite ones of the first and second valve assemblies. When pressurized gas is supplied to the inlet/outlet port of a valve assembly, pressurized gas is also supplied to the opposite inlet pilot port.

The present disclosure provides a valve device, which includes: a valve casing in which an inlet flow passage, an intermediate flow passage, and an outlet flow passage are formed; an outlet rod part coupled to the outlet valve body; an interlocking shaft part that linearly moves the outlet rod part in a direction of a first central axis; an intermediate rod part coupled to an intermediate valve body; and an intermediate actuator part that linearly moves the intermediate rod part in the direction of the second central axis. The intermediate actuator part has a link part that converts displacement of the linear motion member, which is advanced and retreated in the direction perpendicular to the direction of the second central axis, into displacement of the linear motion member in the direction of the second central axis and transmit the converted displacement to the intermediate rod part.

A valve apparatus includes a valve block with a main flow path, a first valve installed on the valve block and connected to the main flow path so that when the first valve turns on, a first fluid is supplied from the main flow path to a process chamber via the first valve, and a second valve installed on the valve block and connected to the main flow path so that when the first valve turns off and the second valve turns on, a second fluid is supplied from the main flow path to a waste gas treatment system via the second valve. The main flow path is disposed parallel to a central axis passing through a center of the valve block and two opposing surfaces of the valve block perpendicularly thereto. The main flow path is disposed to be offset from the central axis toward the first valve.

A valve for use in connection with microfluidic devices includes a safety feature such that flow is controlled even in the case of a loss of power, thus having applications in critical applications such as the precise delivery of drugs overtime. The valve may be used in connection with multiple tubes delivering drugs, and may be used with a pump, such as an electrochemical pump, to provide the force to move the fluids containing drugs for delivery. In certain applications, more than one medicine may be delivered and metered independently using a single pump with multiple reservoirs and valves.

A valve system for use with a cylinder having an extensible rod, includes first and second valve assemblies, each including an inlet/outlet port configured to selectively be coupled with a source of pressurized gas, a check valve biased toward a closed state and having a check valve body at least partially receivable within a first port of the cylinder, a flow control valve positioned in series between the inlet/outlet port and the check valve, and an inlet pilot port connected with the check valve for opening the check valve when supplied with pressurized gas. First and second pilot lines extend to the respective inlet pilot ports from respective outlet pilot ports of the opposite ones of the first and second valve assemblies. When pressurized gas is supplied to the inlet/outlet port of a valve assembly, pressurized gas is also supplied to the opposite inlet pilot port.