Abstract: A switch assembly for a valve actuator can include a bracket, a rotatable switch rotatably coupled to the bracket at an adjustable angle, a fixed switch fixedly mounted to the bracket, an arm rotatably coupled to the bracket, and an adjustable switch trigger coupled to the arm. The rotatable switch can be tripped by the valve actuator and a trip point of the rotatable switch can be calibrated by setting the adjustable angle. The fixed switch can be tripped by the switch trigger on the arm and a trip point of the fixed switch can be set by adjusting the switch trigger relative to the arm. The assembly can include a calibration fixture for calibrating the switch assembly to the valve actuator independently of the valve actuator.

Abstract: A switch assembly for a valve actuator can include a bracket, a rotatable switch rotatably coupled to the bracket at an adjustable angle, a fixed switch fixedly mounted to the bracket, an arm rotatably coupled to the bracket, and an adjustable switch trigger coupled to the arm. The rotatable switch can be tripped by the valve actuator and a trip point of the rotatable switch can be calibrated by setting the adjustable angle. The fixed switch can be tripped by the switch trigger on the arm and a trip point of the fixed switch can be set by adjusting the switch trigger relative to the arm. The assembly can include a calibration fixture for calibrating the switch assembly to the valve actuator independently of the valve actuator.

Abstract: A switch assembly for a valve actuator can include a bracket, a rotatable switch rotatably coupled to the bracket at an adjustable angle, a fixed switch fixedly mounted to the bracket, an arm rotatably coupled to the bracket, and an adjustable switch trigger coupled to the arm. The rotatable switch can be tripped by the valve actuator and a trip point of the rotatable switch can be calibrated by setting the adjustable angle. The fixed switch can be tripped by the switch trigger on the arm and a trip point of the fixed switch can be set by adjusting the switch trigger relative to the arm. The assembly can include a calibration fixture for calibrating the switch assembly to the valve actuator independently of the valve actuator.

Abstract: A module for a solenoid valve can include a body having a module inlet, a module outlet, a flow path fluidically between the inlet and the outlet, a module orifice and a module valve seat fluidically disposed in the flow path, a reservoir disposed within the body, a sensor in sensing communication with the reservoir, a first coupler configured to couple with a solenoid actuator and a second coupler configured to couple with a valve body. The flow path can include an inlet flow path from the module inlet to the module orifice and an outlet flow path from the module orifice to the module outlet. The reservoir can be in fluid communication with at least one of the inlet flow path and the outlet flow path. The module outlet can be disposed in fluid communication with the second coupler and configured to sealingly engage a valve seat.

Abstract: A valve can include a body having an inlet and an outlet coaxial about an axis, a stationary valve seat between the inlet and the outlet, one or more valve members slideably coupled to the valve body and adapted to optionally couple with the valve seat, one or more biasing devices adapted to bias the valve member(s) in one or more longitudinal directions, and one or more actuators adapted to optionally move the valve member(s) into and/or out of sealing engagement with the valve seat. An actuator assembly can include one or more of an electrohydraulic actuator and an electromechanical actuator, among others.

Abstract: A solenoid valve can include a valve body having an inlet and an outlet, a solenoid actuator and a module coupled to the valve body and the solenoid actuator. A module can include a module inlet disposed in fluid communication with the valve inlet, a module outlet disposed in fluid communication with the valve outlet, a module orifice and a module valve seat disposed along a module flow path fluidically between the module inlet and the module outlet and a sensor coupled to the module and disposed in sensing communication with the module flow path.

Abstract: A valve can include a body having an inlet and an outlet coaxial about an axis, a stationary valve seat between the inlet and the outlet, one or more valve members slideably coupled to the valve body and adapted to optionally couple with the valve seat, one or more biasing devices adapted to bias the valve member(s) in one or more longitudinal directions, and one or more actuators adapted to optionally move the valve member(s) into and/or out of sealing engagement with the valve seat. An actuator assembly can include one or more of an electrohydraulic actuator and an electromechanical actuator, among others.

Abstract: A solenoid coil assembly for hazardous environments comprises a solenoid coil and an enclosure entirely filled with encapsulation material. The encapsulation material leaves zero or almost zero volume in the enclosure for hazardous material to accumulate in any amount that could explode. This allows the solenoid coil assembly to be constructed without the usual industry standard flame paths. Additionally, the enclosure may be made of physically rigid and strong material such as metal or the like to better withstand harsh and corrosive conditions within hazardous environments without being explosion proof. The walls of such an enclosure need only have a moderate thickness and weight relative to enclosures that are explosion proof, as there is no meaningful risk of an explosion occurring within the enclosure. The combination of a rugged exterior and a zero-volume interior allows the solenoid coil assembly to reduce weight and cost while providing superior environmental protection.

Abstract: A system for indicating the status of a valve may include an encapsulation with electronic circuitry disposed at least partially therein, a communication sub-system, a sensor, an indicator and a power source. The encapsulation may be zero volume, and the indicator may include a color changing skin. A method of indicating the status of a valve may include providing a valve, providing a status indicating system, changing a status of the valve, sensing a status of the valve, and indicating a status of the valve. A method of encapsulating a status indicating system may include providing an encapsulant and coupling at least a portion of the system with the encapsulant.

Abstract: A system for indicating the status of a valve may include an encapsulation with electronic circuitry disposed at least partially therein, a communication sub-system, a sensor, an indicator and a power source. The encapsulation may be zero volume, and the indicator may include a color changing skin. A method of indicating the status of a valve may include providing a valve, providing a status indicating system, changing a status of the valve, sensing a status of the valve, and indicating a status of the valve. A method of encapsulating a status indicating system may include providing an encapsulant and coupling at least a portion of the system with the encapsulant.

Abstract: An improved solenoid is provided that has a fully enclosing yoke with integral end cap and sleeve. A second, separate, or alternatively integral end cap with sleeve is provided to complete the magnetic yoke. The yoke/coil assembly is encapsulated with a liquid crystal polymer that has a melting temperature higher than the melting temperature of the coil bobbin to provide a good bond therebetween.