A fuel vapor switching and venting valve for an internal combustion engine. The fuel vapor switching and venting valve includes an electromagnet with an armature, a first connection, a second connection, a first valve seat which is arranged between the first connection and the second connection, a spring, a flow limiting element, a second valve seat which is arranged on the flow limiting element, and a valve body coupled to the armature of the electromagnet. The valve body has a first contact surface with which the valve body can be lowered onto and lifted off of the first valve seat, and a second contact surface with which the valve body can be moved against the second valve seat. The second valve seat is axially displaceable. The spring loads the second valve seat in a direction of the valve body.

A hydraulic machine includes an actuator, a tank, a directional control valve disposed between the actuator and the tank, and an adjustable return check valve disposed between the directional control valve and the tank. The directional control valve includes an attachment actuator directional control valve disposed between an attachment actuator of the actuator and the tank and a swing actuator directional control valve disposed between a swing actuator of the actuator and the tank. The adjustable return check valve allows fluid to flow from the attachment actuator directional control valve toward the tank while applying the low back pressure but blocks a flow, and allows fluid to flow from the swing actuator directional control valve toward the tank while applying the high back pressure but blocks a reverse flow.

A control valve device includes a valve main body formed to have an actuator port connected to an actuator, a communication passage formed in the valve main body and configured to allow the actuator port to communicate with a drain port, and an on/off valve provided between the communication passage and the drain port, and the on/off valve includes a sheet member assembled to the valve main body, an orifice provided in the sheet member, and a poppet member configured to open and close a sheet portion of the sheet member.

A valve for free-flowing media, in particular a glue valve, with a valve housing, and with a closure member, in particular a valve tappet, which is movable in the valve housing by means of an electromagnet and which bears with a closure piece on a valve seat in the closed position of the valve and which sits at least partially in an in particular continuous interior of a preferably one-piece coil carrier on which the windings of a coil of the electromagnet are wound, and with a valve lift adjustment unit with an elongate abutment part which is arranged at least in part in the interior of the coil carrier and which limits a movement of the closure member in the direction of the valve lift adjustment unit, with the valve lift adjustment unit being is secured on the coil carrier.

A dispenser for dispensing a liquid onto a substrate is disclosed. The dispenser includes a liquid supply and a dispenser module. The dispenser module includes a nozzle body having an inlet, an outlet, and a chamber for receiving the liquid. The dispenser module also includes a central valve body attached to the nozzle body that defines a piston chamber and a valve member having a piston portion disposed within the piston chamber of the central valve body and a needle portion extending form the piston portion into the chamber of the nozzle body. The dispenser further includes a heater block for heating the nozzle body. The heater block defines a liquid passage for transporting liquid from the liquid supply to the dispenser, a first surface of the heater block directly contacts the nozzle body, and the entirety of the central valve body is spaced from the heater block.

A sanitary valve (1) having a movable diaphragm (4) of a main valve (3) that is actuable using a push-push mechanism (8) which defines at least three discrete switching positions of the main valve (3) controlled via a pilot valve (6), and/or a flowrate regulator (34), preferably adjustable by the push-push mechanism (8), arranged permanently downstream from the main valve (3).

A hydraulic valve includes a sliding control member that delimits at least one constantly adjustable diaphragm. The sliding control member is configured to be moved in the direction of a longitudinal axis. The hydraulic valve further includes a locking device with a locking member that is configured to be moved counter to the force of a first spring transversely relative to the longitudinal axis. The hydraulic valve further includes at least one catch contour in which the locking member is configured to be engaged in such a positive-locking manner that the sliding control member is releasably retained in a catch position that is associated with the respective catch contour. The position of at least one catch contour is constantly adjustable in such a manner that the free cross-sectional surface-area of the at least one diaphragm is constantly adjustable in the associated catch position.

In at least some implementations, a solenoid valve includes a housing, a bobbin and an armature. The bobbin is received at least partially within the housing and has a body about which a coil is provided. A fluid flow path including an inlet and an outlet and a valve seat is defined by at least one of the housing or the bobbin, and the armature is moveable relative to the valve seat to control flow through the fluid flow path.

In a compressed-fluid discharge control device, there are formed a valve chamber communicated with a discharge channel and supply channels for supplying a compressed fluid, and a pilot chamber into which the compressed fluid is introduced from the supply channels. A diaphragm valve for communicating or cutting off communication of the supply channels and the discharge channel seats on or separates from a valve seat provided in the valve chamber. Pilot channels through which a compressed fluid supplied to the pilot chamber passes are formed in the diaphragm valve. The compressed-fluid discharge control device has a pilot chamber opening/closing valve for opening or closing the pilot chamber. The pilot chamber opening/closing valve includes a solenoid valve which is opened in response to energization thereof and closed in response to de-energization thereof.

Provided is a fluid controller in which reduction of the accuracy caused by the loosening of a screw portion and reduction of the durability caused by torsional stress are prevented. A stem vertical-movement-amount adjustment means 11 is provided with: a handle 41 which has a female screw 41b on an inner periphery thereof and which is rotatably supported by a casing 4; a movable body 42 in which a male screw 46b is provided on an outer periphery thereof and is screwed into the inner periphery of the handle 41; and a guide means 43 which prevents rotation of the movable body 42 relative to the casing 4 and which enables vertical movement of the movable body 42.