A controller assembly comprises an electromechanical actuator and a single-stage pneumatic flow switch configured to thermally protect the electromechanical actuator by a supply of cooling fluid. The single-stage pneumatic flow switch is movable between a first mode in which the switch is configured to open a cooling fluid flow passage and a second mode in which the switch is configured to close the cooling fluid flow passage. The electromechanical actuator is coupled to a valve movable between an open and a closed configuration.

A solenoid valve is provided. The solenoid valve can include a valve body, a solenoid actuator, a valve insert, and first and second movable valve elements. The valve body can include a valve bore, a control port, a first port, and a second port, in which the control port is arranged in a nose of the valve body. The solenoid actuator is coupled to the valve body and configured to selectively move a pin between a first position and a second position to move first and second valve elements. Movement of the pin, by the solenoid actuator, between the first position and the second position selectively connects the control port to the first port or the second port.

A valve (100) for a bioprocess liquid apparatus (199) comprises tubular sections (101, 102, 103) inside which valve seat means (155) are arranged. A plunger arrangement (150) is configured to selectively interact with the valve seat means to close and open the tubular sections in response to a magnetic field provided by solenoid arrangements (104, 105), the solenoid arrangements being arranged at the bioprocess liquid apparatus. A flow path device comprising such a valve and a bioprocess liquid apparatus and a method of handling a bioprocess liquid are also disclosed.

A hydraulic valve includes an on/off seat-type main valve with two ports having a displaceable poppet for opening and closing the main flow channel; an on/off seat-type pilot valve with three ports, with a magnetomotive force producing coil, a magnetic circuit, and an anchor movable with the magnetomotive force produced by the coil; and a frame with required channels and spaces for the poppet and for the anchor. Closing the inlet channel displaces the poppet and opens the main flow channel. Opening the inlet channel forces the poppet to close the main channel. The anchor includes a frame with a first sealing element for closing the low-pressure outlet channel of the pilot valve and with a second sealing element for securing the closing of the high-pressure inlet channel of the pilot valve. The sealing surface of the second sealing element is movable in relation to the frame of the anchor.

An electromagnetic valve is configured with an electromagnetic section, a flow path section, and a sealing member between them. This separate arrangement improves a degree of freedom for arranging inflow and/or outflow passage. This separate arrangement also enables to reduce a size of the electromagnetic section. A plunger comes in contact with a central portion of a spherical portion of a valve member. A normally open compression spring comes in contact with a peripheral portion of the valve member. The valve member can be reliably seated on the normally close valve seat even if the plunger is slightly tilted.

A valve (100) for a bioprocess liquid apparatus (199) comprises tubular sections (101, 102, 103) inside which valve seat means (155) are arranged. A plunger arrangement (150) is configured to selectively interact with the valve seat means to close and open the tubular sections in response to a magnetic field provided by solenoid arrangements (104, 105), the solenoid arrangements being arranged at the bioprocess liquid apparatus. A flow path device comprising such a valve and a bioprocess liquid apparatus and a method of handling a bioprocess liquid are also disclosed.

A pneumatic valve, includes an air chamber, a connector for supplying compressed air to the air chamber and one or more connectors for discharging compressed air from the air chamber. The valve includes an actuator with a mobile closure element which, when the actuator is activated, blocks the supply of compressed air via the supply connector, and when the actuator is deactivated, is arranged to permit the supply of compressed air via the supply connector. The actuator is configured such that the closure element, on deactivation of the actuator, is moved by a restoring force into the free position. A check valve with a spring is arranged at the supply connector. The elastic force of the spring in the free position of the closure element prevents back-flow of compressed air from the air chamber into the supply connector when there is no supply of compressed air at the supply connector.

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 nature of the apparatus allows for convenient expansion or modification of the manifold assembly to suit any application that comprises a group of pneumatically or hydraulically driven pumps, valves or combinations thereof in a liquid flow control apparatus. The valved manifold module in an example 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 readily expandable to allow for coordinated operations of a liquid flow control system, using substantially independent controller functions originating at the manifold assembly level.

An electropneumatic solenoid valve for a pneumatically-actuated field device can include air channels, a flapper valve member, an electromagnetic controller, and a spring. An air supply channel, air dispensing channel and air exhaust channel can be mound into an air chamber. The flapper valve member can include a closure element arranged on an axial control direction and be engageable with a delimitation interior wall mouth of one of the air channels such that the flapper valve member is arranged with a circumferential axial distance to the delimitation interior wall. The electromagnetic controller can displace the flapper valve member in the axial control direction to ventilate/exhaust the air dispensing channel. The spring can bias the flapper valve member into a closed position to close closing the one of the air channels. The flapper valve member can be float-mounted in an unguided configuration except for spring within the air chamber.

A controller assembly comprises an electromechanical actuator and a single-stage pneumatic flow switch configured to thermally protect the electromechanical actuator by a supply of cooling fluid. The single-stage pneumatic flow switch is movable between a first mode in which the switch is configured to open a cooling fluid flow passage and a second mode in which the switch is configured to close the cooling fluid flow passage. The electromechanical actuator is coupled to a valve movable between an open and a closed configuration