A valve position indicator for a valve includes a spline barrel, indicator flag, and follower. The spline barrel may be generally tubular and may be positionable about a tail stem protector of the valve. The spline barrel may have a helical slot formed therein. The spline barrel may be rotatably coupled to the tail stem protector of a valve. The indicator flag may be coupled to the spline barrel and may extend radially therefrom. The follower may be coupleable to a tail stem of the valve. The follower may extend in a direction perpendicular to the extent of the tail stem. The follower may extend through a slot in the tail stem protector and the helical slot of the spline barrel when the spline barrel is positioned about the tail stem protector.

A diaphragm assembly for a diaphragm valve is described, which has a diaphragm which includes a functional portion adapted to cooperate with further components of the diaphragm valve and to separate opposite chambers. The diaphragm further includes a tab projecting laterally from the functional portion and having a through-opening provided therein. A marking element is fastened in the through-opening. In addition, a diaphragm valve having such a diaphragm assembly is presented.

A universal adapter assembly for coupling a valve actuator to a plurality of different valves having different actuator engagement configurations includes a plurality of interchangeable connectors, a drive shaft, and an adapter bracket. Each of the plurality of interchangeable connectors corresponds to one of the different actuator engagement configurations. Each of the plurality of interchangeable connectors has a proximal end and a distal end. The distal end is configured to engage a valve control knob of a valve having the corresponding actuator engagement configuration. The drive shaft is configured to engage the proximal end of each of the plurality of interchangeable connectors. The adapter bracket is configured to be coupled to the valve. The adapter bracket is further configured to include an opening to receive the drive shaft. The adapter bracket is further configured to include a set of apertures corresponding to the actuator engagement configuration. The adapter bracket is further configured to secure the adapter bracket to a mounting pad of the valve.

A low-volume non-rising stem gate valve comprising a hollow stem, planetary roller screw and anti-rotation rods. The anti-rotation rods isolate the torque force and maintain the alignment of the planetary roller screw with the stem and the screw shaft, thus reducing the amount of material necessary to support ordinary operational forces.

A valve position indicator for a valve includes an outer housing, actuation rod, indicator flag, and follower. The actuation rod is positioned within the outer housing, which is couplable to a tail stem protector of the valve. The actuation rod may have a helical slot formed therein. The actuation rod may be rotatably coupled to the outer housing. The indicator flag may be coupled to the actuator rod and may extend radially therefrom. The follower may be couplable to a tail stem of the valve. The follower may extend in a direction perpendicular to the extent of the tail stem. The follower may extend through a slot in the tail stem protector and into the helical slot of the actuation rod when the valve position indicator is coupled to the tail stem protector.

A flow control valve includes: a valve body, a valve seat, a valve rod, a flow display device, a transparent cap and a turning knob. The flow display device is installed around a display section of the valve seat, includes a plurality of display straps observable from any direction via the transparent cap in order to determine the instant fluid flow rate regardless of whether the location of the flow control valve in an open and unobstructed space, or many obstacles in the wall, corner, or narrow space. The user can clearly see the flow display device from any angle so as to determine the real-time flow rate without deviation.

A valve position indicator for a valve includes a spline barrel, indicator flag, and follower. The spline barrel may be generally tubular and may be positionable about a tail stem protector of the valve. The spline barrel may have a helical slot formed therein. The spline barrel may be rotatably coupled to the tail stem protector of a valve. The indicator flag may be coupled to the spline barrel and may extend radially therefrom. The follower may be coupleable to a tail stem of the valve. The follower may extend in a direction perpendicular to the extent of the tail stem. The follower may extend through a slot in the tail stem protector and the helical slot of the spline barrel when the spline barrel is positioned about the tail stem protector.

The invention is directed to an indicator (22) of the opening and/or closing status of a device controlling the flow of a fluid, such as a tap or a pressure reducer for compressed gas, comprising a sleeve-shaped support (24) to rotatably engage with a protruding portion (18) of a body of the device and from which an actuating spindle (20) extends along a longitudinal axis of said device; an indicator sleeve (26) axially sliding along the support (24); a rotor (28) to be fixed to the spindle (20) and comprising at its periphery a least one track (32) with a curved profile; and at least one track follower (30) extending radially from the indicator sleeve (26) through a longitudinal slot (242) in the support (24) and engaging with the at least one track (32).

A shutoff valve assembly for a fluid supply system includes a shutoff valve, with a valve member movable therein to shutoff fluid flow through a fluid conduit. The shutoff valve assembly includes a sensor target assembly with a sensor target located outside of the valve housing, and a rotator structured to transmit a rotation of the valve member within the valve housing to the sensor target. A proximity sensor is located outside of the valve housing and structured to produce a valve closing signal based on rotation of the sensor target that is indicative of initiating closing the shutoff valve. The design is adapted for relatively high temperature and high vibration environments.

In a valve actuating system having an actuating drive which has a drive housing and an output unit which is movably mounted in the drive housing for generating a stroke of a spindle of a valve for opening or closing a through-flow opening of the valve, wherein the output unit has a force pickup portion to which the spindle is coupleable or coupled and a fastening portion arranged opposite the force pickup portion, wherein the actuating drive furthermore possesses a holder, which is separate from the output unit, has a holder longitudinal-axis and has a fastening device by way of which it is fastened to the fastening portion of the output unit and a support device for supporting at least one position information element on the holder, and wherein the valve actuating system has a plurality of mutually different types of position information elements supported on the holder by way of the support device.