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.

An integrated switch device includes an air valve assembly and a switch assembly. The air valve assembly comprises a flow channel base, a first air valve, and a second air valve. The flow channel base has a first air supply path and a second air supply path. The first air valve is provided on the first air supply path, and the second air valve is provided on the second air supply path. In addition, the switch assembly comprises an electrical control module controlled to output an on-off signal to an air pump, and an operation cover fitted and connected to the electrical control module.

An integrated switch device includes an air valve assembly and a switch assembly. The air valve assembly comprises a flow channel base, a first air valve, and a second air valve. The flow channel base has a first air supply path and a second air supply path. The first air valve is provided on the first air supply path, and the second air valve is provided on the second air supply path. In addition, the switch assembly comprises an electrical control module controlled to output an on-off signal to an air pump, and an operation cover fitted and connected to the electrical control module.

The systems and methods for fluid flow control valve device, where the device may include a support structure, one or more fluid tubes associated with the support structure, tensioning element supported by the support structure and being rotatable about an axis point relative to the support structure in response to an application of force, and one or more threads, each extending between the tensioning element and the one or more fluid tubes, the one or more threads configured to provide sufficient tension to compress at least one of the one or more fluid tubes in response to tension generated due to the rotation of the tensioning element.

A rocker valve comprising a rocker valve mechanism in a valve body. The mechanism comprises a single pivot arm to which first and second plungers are pivotally fixed to act in opposition. The rocker valve includes a flexible seal member extending laterally across the first and second fluid ports and having a first sealing region attached to a plunger head of the first plunger and a second sealing region attached to a plunger head of the second plunger. When the single pivot arm is pivoted relative to the valve body, a rotation of at least one of the first and second plungers about its respective fixed pivot is constrained solely by the flexible seal member such that a lateral position of the plunger head is automatically adjusted by the flexible seal member to balance tensile forces in the flexible seal member around the plunger head.

A heat dissipation assembly includes a case and a partition structure. The case has a chamber. The partition structure includes a partition wall vertically disposed in the chamber to separate a first flow path and a second flow path in the chamber, and the partition wall has a breach and a valve structure disposed at the breach, wherein the valve structure covers the breach when the valve structure is not pushed open. When a fluid pressure existed in a section of one of the first flow path and the second flow path which is adjacent to the valve structure is greater than a fluid pressure existed in a section of the other one of the first flow path and the second flow path which is adjacent to the valve structure, the valve structure is pushed away to expose at least a part of the breach.

A manual valve device including: a plurality of air bags provided inside a vehicle seat; a valve main body including a plurality of flow passages communicating with the plurality of air bags, respectively; a plurality of valve bodies movable inside the valve main body so as to open and close the plurality of flow passages, respectively; a plurality of valve shafts coupled to the plurality of valve bodies, respectively, and configured to be manually operated to move the plurality of valve bodies in a stroke; and an operation lever configured to press any one of the plurality of valve shafts or any combination of the plurality of valve shafts in an axial direction, in which the operation lever includes an adjustment mechanism configured to adjust an air flow rate per unit time flowing in the plurality of flow passages by changing a stroke amount in the axial direction.

An interlocked single function activation valve for hydraulic systems is disclosed. The hydraulic valve prevents unsafe tie-down or safety override situations by requiring the safety mechanism to be reset each time the hydraulic system is used. The hydraulic valve includes an interlock spool that moves to an extension position when the hydraulic system is de-pressurized and then re-pressurized while the control lever is engaged (i.e., tied down). When the interlock spool is in the extension position, it prevents the system from reaching a working pressure, thereby forcing a reset of the control lever before the system can reach working pressure.

An interlocked single function activation valve for hydraulic systems is disclosed. The hydraulic valve prevents unsafe tie-down or safety override situations by requiring the safety mechanism to be reset each time the hydraulic system is used. The hydraulic valve includes an interlock spool that moves to an extension position when the hydraulic system is de-pressurized and then re-pressurized while the control lever is engaged (i.e., tied down). When the interlock spool is in the extension position, it prevents the system from reaching a working pressure, thereby forcing a reset of the control lever before the system can reach working pressure.

Twin poppet mechanism (100) of a valve positioner (101) with progressively reduced leakage, comprising a poppet valve assembly (150) comprising a swivel assembly (110) and a pair of poppet valve assembly (150), a poppet assembly (320) of the poppet valve assembly (150) has a conical tilting freedom (103) around its axis of assembly (151), in a first stable state, the swivel assembly (110) tilts towards a first side (104A) and a rubbing or a lapping action is caused between the first sealing surface (241) and the outer sealing surface (332), and between an inner sealing surface (352) of the poppet body two (350) and the chamber sealing surface (316) of the guide chamber (301), in a second stable state, the swivel assembly (110) tilts towards a second side (104B) and the lapping action is caused between the second sealing surface (261) and the outer sealing surface (332), and between the inner sealing surface (352) of the poppet body two (350) and the chamber sealing surface (316) of the guide chamber (301).