A second communication circuit of each of solenoid valve modules other than a terminal solenoid valve module receives a signal from a switching line located in the next-stage solenoid valve module, and the second communication circuit of the terminal solenoid valve module that receives no signal from the switching line transmits a solenoid valve control signal and signals related to diagnostic information of the plurality of solenoid valve modules to a communication module via a receiving line.

An electropneumatic positioner for a pneumatic actuator to operate a control device of a processing plant can include two modular pneumatic slots and a pneumatic control output. The two modular pneumatic slots can engage with a respective modular pneumatic component. The two pneumatic slots and the pneumatic components can be modularly matched to one another such that their respective pneumatic interfaces merge into one another when a pneumatic slot is engaged. The pneumatic control output can output a pneumatic control pressure signal to the pneumatic actuator. The two modular pneumatic slots and the pneumatic control output can form a pneumatic series connection.

An example valve section includes: a housing having: (i) a longitudinal bore, (ii) a first and second workport passages configured to be fluidly coupled to an actuator, (iii) a first and second return passages, (iv) an open-center passage configured to be fluidly coupled to a source of fluid, and (v) a supply passage disposed between the first and second workport passages. The valve section also includes a spool movable in the longitudinal bore to shift between: (i) a neutral position that allows the open-center passage to permit fluid flow therethrough, and (ii) a shifted position that allows fluid to be diverted from the open-center passage to the supply passage, and connects the supply passage to either the first or second workport passage while connecting the other workport passage to a corresponding return passage of the first and second return passages.

A vacuum-keeping multistage vacuum-generating and vacuum-destructing valve includes a main body, which includes an introduction port, a vacuum port, a discharge port, and a vacuum-generating valve, in combination with a vacuum-destructing valve. The vacuum-destructing valve is arranged in combination with a flow conducting passage formed in the main body and connected to the vacuum port to allow a pressure fluid received through the introduction port to partly flow through the vacuum-destructing valve, and a vacuum-destructing two-port two-position valve is arranged in the flow conducting passage to increase flow rate of the pressure fluid passing therethrough to make a response of the vacuum port more sensitive in switching to a vacuum-destructing state. The ports of the main body are arranged in a detachable manner to increase service efficiency and ease part replacement. Two side seats are arranged to couple multiple such main bodies together to cope with complicated automatic processing operations.

A valve assembly has a basic module and a plurality of valve modules which are mounted on the basic module side by side along a line-up direction. The basic module is composed of a first and a second leg which extend at an angle with respect to each other such that the two legs delimit a receiving space for the valve modules on two sides, a fluid area being provided on the first leg which has a fluid connection face formed on an inside of the first leg which is turned towards the second leg and on which fluid connections are provided which communicate with fluid connections of the valve modules. All fluid connections of the valve modules communicate with fluid connections of the fluid connection face. An electrical area in which electrical connections communicating with electrical connections of the valve modules are provided is provided on the second leg.

A valve arrangement includes a housing arrangement (12), (18), a first spool valve (1a, 1b) having a first spool (3a, 3b) and a second spool valve (2a, 2b) having a second spool (4a, 4b), wherein the first spool valve (1a, 1b) and the second spool valve (2a, 2b) each includes a supply channel arrangement having a pump channel (5) and a tank channel (6), and a working port arrangement having two working ports (8, 9), wherein the spools (3a, 3b; 4a, 4b) control a flow path between the supply channel arrangement (5, 6) and the working port arrangements (7, 8). In such a valve arrangement, it should be possible to simply adapt the control behaviour to different purposes. To this end, the working port arrangement (7, 8) is arranged in a flange (16a, 16b) connected to the housing arrangement (13, 14; 19, 20).

A valve assembly comprises at least one multiple valve having a duct module which includes at least one elongated fluid duct which extends in a straight line along a longitudinal direction and a plurality of branch ducts which open in openings in the fluid duct which are arranged side by side along the longitudinal direction in the inner wall of the fluid duct. The multiple valve comprises at least one multiple valve core which is inserted into the fluid duct such that each valve seal can seal one of the openings. The multiple valve core comprises an elongated carrier and at least one valve element, the carrier having at least one support portion for abutment against the inner wall of the fluid duct and at least one receiving area in which the valve element is connected to the carrier so as to be non-displaceable in the longitudinal direction of the carrier. A plurality of valve seals for closing the openings which are provided on one or on a plurality of valve elements is provided, the valve seals being arranged successively in the longitudinal direction of the carrier and being movable in a closing direction perpendicular to the longitudinal direction. The duct module forms part of a basic module on which a plurality of valve modules fluidically connected to the branch ducts can be mounted, the valve modules being in particular configured so as to be adapted to actuate pressure pieces in the branch ducts which cooperate with the valve seals of the valves of the multiple valve to permanently open the respective valve.

A hanger system for temporarily hanging a valve bank on a vertical mounting face of a substrate. The hanger system includes one or more hanger brackets for attaching to the vertical mounting face. The valve bank has one or more mounting studs protruding from an underside surface of the valve bank, in which the mounting studs are configured to couple with the hanger brackets for temporarily hanging the valve bank on the mounting face with the underside surface facing toward the mounting face. The mounting studs and hanger brackets are configured to cooperate with each other to allow the valve bank to be secured in multiple different orientations against the mounting face, thereby facilitating fixedly mounting the valve bank to the mounting face with one or more fasteners that are received through corresponding fastening receivers in the valve bank.

A solenoid valve island having a base body that includes a housing for a respective solenoid valve, main feeding duct that is in fluid communication with the housing to supply compressed air entering the solenoid valve and that is provided with an inlet mouth for connection with a source of compressed air, a main collection duct in fluid communication with the housing to collect air leaving the solenoid valve and a discharge mouth for discharging the collected air, a hollow seat in which an electric or electronic supply and control circuit of the solenoid valve is housed and includes an opening at each housing for the electric connection, through it, of the respective solenoid valve with the electric or electronic supply and control circuit, wherein the electric or electronic supply and control has a male or female type power supply and signal transmitting connector that is partially housed in the hollow seat of the base body and that can be coupled with a corresponding end connector of a cable for the connection of the electric or electronic supply and control circuit to a remote supply and control unit, the corresponding end connector being respectively female or male.

An example valve section includes: a housing having: (i) a longitudinal bore, (ii) a first and second workport passages configured to be fluidly coupled to an actuator, (iii) a first and second return passages, (iv) an open-center passage configured to be fluidly coupled to a source of fluid, and (v) a supply passage disposed between the first and second workport passages. The valve section also includes a spool movable in the longitudinal bore to shift between: (i) a neutral position that allows the open-center passage to permit fluid flow therethrough, and (ii) a shifted position that allows fluid to be diverted from the open-center passage to the supply passage, and connects the supply passage to either the first or second workport passage while connecting the other workport passage to a corresponding return passage of the first and second return passages.