A fluid distribution manifold may receive a first required flow rate for a first flow of fluid that flows to a fluid handling device or a reservoir. A first operation state may be determined for a first valve assembly that regulates the first flow, the manifold may operate the first valve assembly based on the first operation state, and a first position tracker may be incremented based on the first operation. Based on a value of a cycle tracker, the manifold may identify a second valve assembly in an operation cycle and access a second control input that includes a second required flow rate for a second flow of fluid regulated by the second valve assembly. The manifold may cause the second valve assembly to operate based on at least one of a second operation state and a change in the second actual flow rate resulting from the first operation.

A valved manifold module is disclosed, constructed and arranged to be readily connected in a chain with similar modules to form a manifold assembly. The modular manifolds allows for expansion or modification of the manifold assembly to control a group of pneumatically or hydraulically driven pumps, valves or combinations thereof in a liquid flow control apparatus. The valved manifold module can be configured to accept a group of four substantially identical valve assemblies, and can be controlled by a local controller mounted to the manifold module, thus forming an independently programmable valved manifold module. The resulting modular system is expandable to allow for coordinated operations of a liquid flow control system, using substantially independent controller functions originating at the manifold assembly level.

The present invention includes a cartridge and system utilizing the cartridge that cools a computer. The cartridge first within a server stand and urges forced fluid into the computer.

A diaphragm valve including: a valve body having a flow path formed therein and a valve chamber recessed from an upper surface of the valve body; a diaphragm that is disposed in the valve chamber and elastically deformable to open and close the flow path and adjust an opening degree of the flow path; a stem for pressing the diaphragm to elastically deform the diaphragm; an actuator for driving the stem; a support mechanism that is fixed to the valve body and supports the stem and the actuator; wherein the stem includes a first stem member connected to the actuator via a displacement transmitting member, and a second stem member held by the support mechanism so as to be movable in the axial direction via a sleeve, the second stem member has an upper end portion which abuts against a lower end portion of the first stem member.

A three-way valve is disclosed. The valve achieved constant flow rate as the valve transitions from 100% flow through the first path to 100% flow through the second path. The valve is linearly actuated, which allows a plurality of valves to be efficiently disposed in a manifold. The valve comprises a spool having two passageways therethrough which converge at the input. The spool is disposed in a housing. By linear movement of the spool within the housing, the amount of the incoming flow that passes through each of the two passageways can be controlled. In certain embodiments, the spool is in communication with an actuator to control its position within the housing. The three-way valve may be used as part of a manifold.

A flow path switching device of the present disclosure includes a case comprising a first nozzle into which fluid flows from an indoor unit, a second nozzle which sends fluid to the indoor unit, a plurality of inner outflow pipes through which fluid supplied from the first nozzle flows, a plurality of inner inflow pipes through which the fluid supplied to the second nozzle flows, and a flow path connection portion in which a space is formed to communicate the plurality of inner outflow pipes with the first nozzle or to communicate the plurality of inner inflow pipes with the second nozzle; a valve which is rotatably disposed in the space of the flow path connection portion, and has a first chamber connecting one of the plurality of inner inflow pipes and the first nozzle according to disposition, and a second chamber connecting one of the plurality of inner outflow pipes and the second nozzle according to disposition; and a motor which is disposed in one side of the valve, and rotates the valve, wherein the plurality of inner outflow pipes and the plurality of inner inflow pipes are disposed in the same one side direction of the flow path connection portion and are spaced apart from each other in a direction in which a rotation shaft around which the valve rotates is formed.

A valve block includes a fluid-transfer plate with multiple inlet bores connecting to a common inlet channel, and multiple outlet bores connecting to a common outlet channel. The inlet bores and the outlet bores are arranged in a curved shape. The valve block also includes a pressure plate and diaphragm aligned and connected to the fluid-transfer plate in a way that allows pressurized material in the pressure plate to control the state of the channels formed by the inlet and outlet bores.

A valve device includes a body, a solenoid valve, and a manual valve mounted to the body. The manual valve being configured to open and close the gas flow channel via a manual operation. The gas flow channel includes a first flow channel including the valve-side opening portion, and a second flow channel including the tank-side opening portion, and includes an intersection portion in which a first center axis that is a center axis of the first flow channel and a second center axis that is a center axis of the second flow channel intersect with each other. A center axis of the solenoid valve coincides with an extension line of the first center axis and a center axis of the manual valve coincides with an extension line of the second center axis.

A manifold for an air massage system of a tub may have a housing defining an inner cavity having an air inlet configured to be pneumatically connected to a pressure source. Air outlet(s) is pneumatically connected to one or more outlets of the tub. A check valve(s) is in the inner cavity of the housing, the at least one check valve being positioned between the air inlet and the at least one air outlet relative to an air flow through the housing, the at least one check valve allowing fluid communication from the air inlet to the at least one air outlet and blocking water from flowing from the at least one air outlet to the air inlet. A width of the manifold is less than a height of the manifold.

Two problems with existing electronically controlled mixing valves for domestic use is their size and difficulty accessing and repairing them. Their size means that they often become hidden behind wall linings, and because of the way in which they are plumbed into the pipework of a house, they are difficult to access and remove for repair or replacement. Disclosed is a compact and replaceable mixing valve cartridge that can be mated to a fixed fitting that is permanently plumbed into the pipework of a house. The compact size allows the cartridge to be positioned behind the type of removable face plates that are often installed over existing manually operated mixing valves. Simplified valve actuators and a compact mixing and temperature sensing configuration have facilitated the compact size. The valve cartridge can simply be accessed, unbolted and removed, without the need for extensive plumbing re-work.