43 results about "Zone valve" patented technology

The invention relates to a valve (2) for controlling a passage of particles from a first region (6) to a second region (7), wherein the valve (2) comprises a valve material (4) having a modifiable degree of penetrability and a valve region (16) comprising the valve material (4), wherein the valve region (16) and the valve material (4) are adapted such that the particles have to penetrate the valve material (4) if the particles pass the valve (2) for being transferred from the first region (6) to the second region (7). The degree of opening of the valve (2) can easily be controlled by modifying the degree of penetrability of the valve material (4), for example, by modifying the temperature of the valve material (4). Moreover, by penetrating the valve material (4) the particles can be separated from other elements like a fluid containing the particles.

An apparatus and method are provided for replacing existing actuator driven zone valves in an HVAC system, and particularly valves of the rubber paddle type having actuators providing less than 90 degrees of rotation, with a ball valve including a skewed seat bearing that blocks flow through the flowpath when a valve member of the ball valve is rotated through an angle of substantially less than 90 degrees from a fully open position of the valve at which a bore in the valve member is substantially fully aligned with the flowpath. The actuator from the existing zone valve being replaced may be used with the provided ball valve apparatus and method.

An integrated wiring assembly electrically connects components of a multi-zone boiler heating system. The integrated wiring assembly includes a plurality of connection terminals which are commonly connected to facilitate connecting thermostats and zone valves for each zone, end switches of each zone valve to a start switch of the boiler, and a transformer to supply electrical power to the components, in such a way that the complexity of the electrical connections is simplified.

An automated irrigation purge system utilizes a pressure purge method of discharging compressed air from a reservoir through selected irrigation zones with feedback from pressure switches to determine when to open and close each zone valve. No programming or user interaction is required beyond starting the system. The system can operate with a wide variety of irrigation systems, with varying number of zones, pipe lengths, pipe diameters, number and variety of sprinkler heads or outlets, and terrain slope. The system tracks the pressure transition time from high pressure to low pressure for each zone as it is blown out. When the current transition time is within a specified range from the previous transition time, the system knows the water has been sufficiently purged from that zone. The purge system can protect the irrigation system from high-pressure conditions, handle multiple error conditions, and maintain water valve settings during power loss.

There is provided a hydronic system for a plurality of zones. The system includes a wiring track. The track has a pair of power conductors for supplying electrical energy therealong and a pair of signal conductors. The signal conductors are in communication with a heat / cold source. The system includes a plurality of zone modules, each corresponding to a respective one of the zones. Each of the zone modules includes leads which connect to respective ones of the conductors. Each of the zone modules includes terminals and conductors configured to selectively connect respective thermostats and zone valves of their zone together, receives signals therefrom and conveys the signals via the signal conductors to the heat / cold source for selectively heating / cooling respective ones of the zones.

A valve device for an exhaust-gas bypass path of a turbocharger, including: a plate-like valve element, movable between a closed position and an open position and which has a shaft, which is connected to a valve element carrier for limited movement in the shaft direction; a rotatably held spindle, to which the valve element carrier is fixedly connected; a valve seat for the valve element, which valve seat surrounds an exhaust-gas through-opening; and an annular sheet-metal spring element, which has an opening through which the valve element shaft extends, an outer ring region, an inner ring region, which is axially offset relative to the outer ring region and adjoins the spring element opening, and an annular transition region therebetween; the width of the spring element transition region being variable around the spring element opening such that the valve element can be adapted to the valve seat as easily as possible.

The invention relates to the field of valve boxes, in particular to a medical gas area valve box. A box body, a controller, a first air inlet pipeline, a second air inlet pipeline, a third air inlet pipeline, a convergence air row, a gas pressure reduction adjusting valve, a flow dividing air row and an air conveying pipeline are included. The convergence air row and the flow dividing air row arein communication through the gas pressure reduction adjusting valve. The air outlet ends of the first air inlet pipeline, the second air inlet pipeline and the third air inlet pipeline communicate with the convergence air row, and the air inlet end of the air conveying pipeline communicates with the flow dividing air row. An air inlet air row is provided with a first air pressure sensor, and the convergence air row is provided with a second air pressure sensor. An emergency air supply pipeline is additionally arranged in the valve box, so that the medical gas source disconnection risk is reduced, each air supply pipeline can be manually opened, and accordingly, the medical gas source disconnection risk is further reduced; and a sound and light alarm can be used for guiding a worker to adjust the gas pressure reduction adjusting valve, and the air pressure value in the flow dividing air row conforms to the total air pressure value required by the opened air conveying pipeline.

An additive injection zone valve. A valve includes a valve body and a bolt. The valve body has an input port and an output channel connected by a main channel. The valve body has bolt holes aligned to intersect the primary passage. The valve body has a steering port provided at one end of the bolt hole. The valve body has an intersection point at the output channel and the main channel includes a gradual transition. The bolt has first and second ends aligned on a longitudinal axis. The bolt has a through channel aligned transversely with the longitudinal axis and has a deflection channel disposed between the side hole and the first end. The bolt is configured to slidably engage the bolt hole.

The invention relates to a vacuum valve (1) for closing a flow path (F) in an airtight manner by linear movement, the vacuum valve comprising: a closing member (5), which is linearly displaceable; a second part of the valve housing (2) A sealing surface (10), the first sealing surface closing the opening (3); and, a second sealing surface (11) of the closing member (5), the second sealing surface corresponding to the first sealing surface (10). In the closed position (C), the second sealing surface (11) is in sealing contact with the first sealing surface (10), said contact being pressed against the first sealing surface (10) in the closing direction (8), and the closing member ( 5) Close the opening (3) in an airtight manner. In the area between the opening (3) and the first sealing surface (10), the valve housing (2) comprises a first inclined surface (22) closing the opening (3), and the closing member (5) comprises a first inclined surface parallel to the first inclined surface (22) extends and corresponds to the second inclined surface (23) of the first inclined surface (22). The inclined surfaces ( 22 , 23 ) having an inclination angle ( 24 ) between 3 and 15 degrees relative to the geometrical adjustment axis ( 6 ) are positioned relative to each other such that in the closed position (C) of the closing member ( 5 ), p. The two inclined surfaces ( 23 ) are arranged in parallel positions opposite to the first inclined surface ( 22 ), and have a distance (v) of 0 to 0.6 mm between them.

The present invention relates to a valve assembly with a retainer, and more particularly to a valve assembly (10), particularly a regulating valve for regulating a coolant circuit of an internal combustion engine. The valve assembly (10) is provided with a valve unit (12) for directing fluid through an opening (18) and a sealing element (14) for sealing a transition between the valve unit (12) andthe fluid passage. Furthermore, the valve assembly (10) is provided with a retainer (16) for preventing the sealing element (14) from sinking into the opening (18) of the valve unit (12), wherein theretainer (16) is arranged in the valve unit (12). Furthermore, the retainer (16) has an exposed area (22) at the opening (18). The contour (24) of the valve unit (12) continues at the exposed area (22) of the retainer (16).