A docking fixture for removal of a valve core from a valve fitting of a pressurized system includes a main body defining a hollow main channel that receives a gripping probe to remove the core of a charging valve that is part of a pressurized HVAC system. The docking fixture has a proximal end that can be connected to the HVAC fitting that houses the valve core that is to be removed and replaced. The docking fixture has a side port integrated with a slide valve that can be closed to isolate and protect a sensitive vacuum pressure gauge that might be connected to the free end the fixture's side port. The slide valve includes a sleeve and a tactile feedback mechanism that is configured to provide tactile sensation when the sleeve is positioned in one of the open position and the closed position of the slide valve.

A plunger actuated valve system is provided. The plunger actuated valve system includes a discharge valve, a stem extending from the discharge valve, and a suction valve coupled with the stem. The suction valve can be operable to abut against a plunger as the plunger translates in a first direction such that the suction valve is in a closed configuration. The suction valve includes a latching component operable to abut against a catch surface of the plunger when the plunger translates in a second direction opposite of the first direction such that the suction valve translates in the second direction.

A multi-fitting rotatable fluid connection apparatus comprising a fluid entry fitting and first and second fluid discharge fittings. The fluid entry fitting comprises a first end connector threaded for attachment to a fluid source, and first and second distribution connectors. The first fluid discharge fitting has a first intake connector which receives fluid from the first distribution connector. A first rotation member is coupled between the first intake connector and the first distribution connector such that the first fluid discharge fitting is rotatable about a first axis of rotation. The second fluid discharge fitting has a second intake connector which receives fluid from the second distribution connector. A second rotation member is coupled between the second intake connector and the second distribution connector such that the second fluid discharge fitting is rotatable about a second axis of rotation.

A quick connector includes a valve body and a rotatable ring fitting over the valve body. The rotatable ring is rotatable with respect to the valve body. When a sealing member of the rotatable ring is rotated to a full open position, an exit end and an entrance end of the valve body are both encompassed by an opening of the sealing member and communicating with each other. When the sealing member is rotated from the full open position to a full close position, one of the exit end and the entrance end is moved out of the opening and blocked by the sealing member, so that the entrance end and the exit end do not communicate with each other.

A valve that allows control of each of one or more flow paths using one actuator is presented. Rotary motion of a motor is transformed into linear motion using a roller screw mechanism. The travel of the roller screw nut is predefined between front and back hard stops that prevent the roller screw from rotating when the stops are reached. A poppet is attached to the nut using a flexible connection where a spring is compressed. The nut also drives a sleeve with inclined surfaces that moves relative to a locking flexure. When the sleeve is driven by the nut toward closing the valve, the sleeve deforms flanges of the locking flexure causing a cantilever end finger of the flexure to move radially and prevent the poppet from being pushed back. If the sleeve is moved farther in the direction of valve closing, a groove on the sleeve engages notches on the fingers creating a detent that prevents the spring to push the sleeve back.

An apparatus for minimizing dead leg spaces in a container or tubing includes a first member having a flange for attaching the first member to a wall of the container or tubing, the flange having at least one aperture, and a second member rotatably coupled to the first member, the second member having an upper end having at least one aperture, and an open distal end. The second member is rotatable relative to the first member between a closed position where the at least one aperture of the second member is misaligned with the at least one aperture in the flange to prevent the passage of fluid, and an open position where the at least one aperture of the second member is aligned with the at least one aperture in the flange to allow for the passage of fluid.

A valve unit may include a valve and a sensor assembly coupled to the valve. The valve may include a check disk configured to move along a pre-determined path to contact a valve seat in a closed state and configured to decouple from the valve seat in an open state. The valve may also include a mechanism to restrain lateral movement of the check disk to prevent the check disk from sticking. The sensor assembly may include a position sensor configured to generate a first electrical signal related to movement of the check disk and may include circuitry coupled to the position sensor. The position sensor assembly may generate a reference signal to eliminate noise within the first electrical signal. The circuitry may determine fluid flow parameters including flow volume of liquid components and of gas components of the fluid mixture based on frequency components within the first electrical signal.

A fast switch for a sanitary device, which fast switch is designed to connect a water source and a water outlet apparatus, the fast switch includes a tube body with a water inlet end for connecting to the water source, a water outlet end to connect to the water outlet apparatus, with both being able to approach or move away from each other, and a pressing piece disposed on the water outlet end that moves therewith; and a valve body in the tube body which realizes at least two fluidic switching states between the water inlet and outlet ends. The valve body includes a switch element, and the pressing piece is able to press the switch element due to the mutual approaching of the water inlet and outlet ends, whereby the valve body is switched to selectively set one of the two fluidic switching states between the water inlet and outlet ends.

Constriction valves for catheters and method of using constriction valves are presented. The catheter valve has a conduit comprising mesh defining a lumen. The catheter also has a biasing member that is configured to bias the lumen from an open position to a closed position by altering an effective length of the conduit or altering the circumference of the conduit. The biasing member is further configured to change its configuration by changes of intraluminal pressure of the valve. A user can insert a tool into a catheter having a valve by manipulating the valve to expand a substantially closed lumen by compressing the biasing member, twisting the biasing member, or pulling on a cord coupled with the valve.

A pressure relief valve includes a hollow body having an inlet and an outlet, with the hollow body including at least one aperture extending through a surface of the hollow body. An actuator assembly is attached to the hollow body and a sleeve is slideably positioned about the hollow body, with the sleeve moveably attached to the actuator assembly. During operation, the actuator assembly moves the sleeve from a first position that covers the aperture to a second position that un-covers at least a portion of the aperture.