6351results about "Plug valves" patented technology

The invention discloses a self-powered intelligent network connection ball valve for adjusting fluid. The self-powered intelligent network connection ball valve comprises a ball valve body and an intelligent network connection control module arranged on the ball valve body. The ball valve body comprises a ball body, a rotating wheel arranged on the ball body, a transmission shaft connected with the rotating wheel and a generator connected with the transmission shaft. The generator is used for supplying power to the intelligent network connection control module; the intelligent network connection control module comprises a controller; the controller is used for adjusting the valve opening degree of the ball valve body. The pressure and the flow of the valve outlet can be more accurately controlled, and electric power can be provided for the intelligent network connection ball valve.

The present disclosure discloses a valve with dual ball valves, including two ball valves arranged side by side and clamped with each other, wherein each ball valve includes a valve body, a ball body, a valve rod and a handle, clamping structures are respectively and correspondingly arranged on one surfaces of the two valve bodies abutting against each other, and each ball valve further includes a limiting seat, a first anti-misoperation device and a second anti-misoperation device. The first anti-misoperation devices ensure that the handles can be rotated freely only when the two ball valves are in a clamped state. The second anti-misoperation devices ensure that the handles can only be rotated when external force is applied to the handles. Misoperation on the valve is prevented through triple protection.

A fluid valve, in particular for a motor vehicle and / or a temperature control system, having a housing and a valve body disposed in the housing so as to be rotatable about a rotation axis. The housing has a first port and a third port disposed on opposite side of a normal plane in relation to the rotation axis and a second port which is radially spaced apart from the rotation axis and in the direction of the rotation axis is disposed between the first and the third port. The valve body in at least one rotary position connects at least two ports of the housing to one another, and in at least one other rotary position does not connect the two ports to one another.

A valve sealing structure and a ball valve. The valve sealing structure is applied and connected to a communicating position of an inner cavity (11) of a valve body (1) and a channel (21) of a valve cover (2), and comprises a C-shaped ball body (3) and a PTFE sealing ring (41), the C-shaped ball body (3) is rotatably connected in the inner cavity (11) of the valve body (1), and a first metal sealing ring (31) is arranged on the outer surface of the C-shaped ball body (3); the PTFE sealing ring (41) is mounted at a liquid outlet of the inner cavity (11) of the valve body (1), and the PTFE sealing ring (41) and the liquid outlet of the inner cavity (11) are concentrically arranged; a second metal sealing ring (42) is concentrically arranged on the end surface of the PTFE sealing ring (41) facing away from the C-shaped ball body (3) in the axial direction; an elastic pressing component is provided on the end surface of the second metal sealing ring (42) facing away from the PTFE sealing ring (41), and the elastic pressing component is used for applying to the second metal sealing ring (42) a pre-tightening force in the axial direction toward the PTFE sealing ring (41); and when the C-shaped ball body (3) is in a closed state, the first metal sealing ring (31) and the PTFE sealing ring (41) are concentrically arranged. The valve sealing structure can ensure that reliable sealing performance is always kept at different operating temperatures.

The invention discloses a temperature control ball valve self-adaptive to temperature difference change, and relates to the technical field of valves, the temperature control ball valve comprises a valve seat, a buckling valve piece, a collaboration piece and a valve rod; the valve seat is fixedly connected with the buckling valve piece through a bolt, the valve seat and the buckling valve piece are buckled to form a circulation pipeline, the cooperation piece is arranged above the buckling valve piece, and the valve rod is vertically arranged in the valve seat and the buckling valve piece; by means of the design of the deformability detection assembly, safe and stable operation of the system can be guaranteed for the valve body with the valve rod deformability detection function, faults can be early warned in advance, the deformation condition of the valve rod can be monitored in real time, early warning can be given out in time when tiny deformation of the valve rod begins, and the safety of the valve rod is guaranteed. Workers can take measures in advance, and the serious problems that the ball valve cannot be normally opened and closed and fluid leaks due to further aggravation of deformation of the valve rod are solved, so that safe and stable operation of a whole pipeline system is guaranteed.

In a segmented ball valve for low noise and anti-cavitation applications, a replaceable cartridge is fixed inside and retained by stem and end post. The segment has a machined cylindrical bore with a slide-fit noise cartridge, enabling field replaceability with minor effort & without need of welding or fasteners. The replaceable cartridge also enables use of a fully cylindrical cartridge with greater pressure reduction stages compared to welded-on noise plates on the segment. The segment has a flattened front face resulting in lower Fd enabled by dual flow path in lower openings values thereby attaining higher noise attenuation where the cartridge is not required. The curved plates of the low noise and anti-cavitation cartridge enable: expanding flow resulting in non-impinging jet streams thereby achieving higher noise attenuation in one direction; and converging flow in the opposite direction resulting in reduction of flow energy, and the potential for cavitation for liquids.

A ball valve according to an exemplary embodiment of the present invention may comprise: an actuator; a housing having an interior space and a plurality of through-holes exposing the interior space, the through-holes including an inlet hole through while a refrigerant flows in, an outlet hole through which the refrigerant flows out, and a connection hole which is connected to the actuator; a ball having a flow path through which the refrigerant flows in connection with the inlet hole and the outlet hole, and being rotated by a rotary shaft of the actuator in the interior space; a sheet having a flow hole, through which the refrigerant passes in communication with the outlet hole, and arranged to be in contact with the ball between the housing and the ball so as to support the ball; and a sealing member placed between the seat and the housing.

The invention particularly relates to a double-sealing special-shaped ball valve which comprises a valve body, a valve rod rotating and lifting operation mechanism movably installed at the top of the valve body and a connector arranged at the bottom end of the valve rod rotating and lifting operation mechanism. A notch is formed in the top of the special-shaped ball valve clack movably installed in the valve body and can be tensioned, a thin-layer slotting plate part is arranged at the bottom of the special-shaped ball valve clack, deformation is easier, a side through opening is formed in the middle of the special-shaped ball valve clack and used for switching rapid water passing, and therefore the whole structure is an inverted-C-shaped special-shaped ball, and the special-shaped ball valve has the high opening and contracting functions. The left side and the right side of the special-shaped ball valve clack shrink and deform towards the middle portion, the two inclined holes close the notch in the top of the special-shaped ball valve clack, so that the second sealing gasket is separated from the first sealing gasket, and at the moment, in the whole rotating opening and closing process of the valve, the second sealing gasket of the special-shaped ball valve clack and the first sealing gasket of the connecting pipe do not rub; the service life is long.

The three-piece type high-pressure ball valve structure with the lock comprises a valve body and connectors symmetrically arranged on the left side and the right side of the valve body, a ball core is arranged in the valve body, a valve rod is connected to the top of the ball core in an inserted mode, and valve seats matched with the ball core are arranged on the left side and the right side of the valve body respectively. The left side and the right side of the valve body are each provided with a sealing ring, and the sealing rings and the valve seats are coaxially arranged. Through the arrangement of the annular cavity, the first elastic piece, the first flow channels, a piston column, a movable plate and the like, when the valve is in a closed state, the pressure of the liquid inlet end is increased, a belleville spring gets close to a ball core, the first elastic piece deforms, and hydraulic oil in an extrusion cavity and the annular cavity enters the multiple first flow channels; the multiple piston columns move towards the outer side and extrude the sealing ring, the sealing effect on the two sides of the sealing ring can be enhanced at the same time after the sealing ring is deformed, and the higher the pressure in the valve is, the better the sealing performance of the valve body and the connector is.

A cryogenic ball valve (1) comprises a valve body (2); a valve body extension (4a) delimiting, together with the valve body (2), a valve inner chamber (40) and defining a valve top entry opening (41); a removable bonnet (5) closing said inner chamber (40) at said top entry opening (41); a closure member assembly (3) removably received in the valve body (2) and comprising a ball closure member (31), a respective sealing seat (32), and a support cage (33) supporting the ball closure member (31) and the sealing seat (32); an extended stem (6) comprising a first end connected to the ball closure member (31) and a second end protruding from said inner chamber (40) through the removable bonnet (5) and connected to valve actuation means; and a thermal insulation assembly (7; 7′) removably received in said inner chamber (40) and configured so as to thermally separate a first region of said inner chamber (40) adjacent to the valve body (2) from a second region of said inner chamber (40) adjacent to said top entry opening (41).The closure member assembly (3), the stem (6), and the thermal insulation assembly (7; 7′) form a removable unit (10; 10′) which can be inserted / removed in one piece into / from said inner chamber (40) through said top entry opening (41).The support cage of the closure member assembly comprises a cup-shaped element having a lateral wall laterally surrounding the ball closure member and a bottom wall supporting the ball closure member.The lateral wall of the cup-shaped element comprises, at an outer side thereof, at least one first contact surface, and the valve body comprises, at an inner side of a lateral wall thereof, at least one second contact surface, wherein said at least one first contact surface and said at least one second contact surface abut against each other preventing displacements of the closure member assembly and the valve body relative to each other in a peripheral direction thereof.

The top-mounted C-shaped wear-resistant ball valve comprises a valve body, an open type flow channel structure is arranged in the valve body, the open type flow channel structure comprises an upstream end, a downstream end and an oval valve cavity, a valve seat is arranged on the side, close to the upstream end, in the valve cavity, and the sealing face of the valve seat is arranged back to the flow direction of a medium; a C-shaped ball body is further arranged in the valve body, the rotation center of the C-shaped ball body and the geometric center of the sealing face of the C-shaped ball body are arranged in an eccentric mode, the rotation center of the C-shaped ball body and the circulation center line of the valve seat are arranged in an eccentric mode, and in the process from opening to closing of the valve, the valve seat moves slightly along a flow channel. The C-shaped ball body generates double-vector cam motion of rotation and translation and is matched with the valve seat to achieve cam wedge-caulking type torque sealing, the double-vector cam wedge-caulking type torque sealing valve can be suitable for key stations with large calibers and large pressure differences, the opening and closing torque is small, and the service life is long.

The invention relates to the technical field of industrial automation and control, and discloses a top-mounted high-temperature-resistant hard sealing ball valve and a self-adaptive dynamic control system of the top-mounted high-temperature-resistant hard sealing ball valve. The system aims at solving the technical problem that due to the fact that fixed driving torque is adopted, the sealing face of the valve is excessively abraded or the risk of heat jamming exists. The system is characterized by comprising a multi-point distributed sensing subsystem, a valve dynamic control unit and an intelligent electric actuating mechanism. A hybrid torque prediction model based on physical information and data driving is arranged in the valve dynamic control unit, the optimal torque is predicted in real time through sensing data, an executing mechanism is driven to respond dynamically, and the valve dynamic control unit has the online self-learning capacity. Accurate prediction and dynamic adjustment of the valve operation torque can be achieved, overstress damage is effectively avoided, the self-adaptability and generalization ability of the system are improved, and the service life of the valve is prolonged.

The invention relates to the technical field of valves, and discloses an ultralow-temperature LNG top-mounted hard sealing floating ball valve which comprises a valve body, a valve rod and a valve ball arranged in the valve body, a mounting seat is arranged at the top of the valve body, the valve rod penetrates through the mounting seat, an adjusting seat is fixedly mounted at the bottom end of the valve rod, a mounting cavity is formed in the inner side of the valve body, and the valve ball is arranged in the mounting cavity. The valve ball is movably arranged in the mounting cavity, a sliding groove is formed in the top end of the valve ball, and the adjusting seat is slidably arranged in the sliding groove; through the arrangement of the adjusting assembly, when the valve is opened, the adjusting assembly can drive the adjusting block to move, so that the adjusting block pushes the valve ball to move in the direction away from the valve seat, the valve ball is separated from the valve seat, the valve ball does not make contact with the valve seat when starting to rotate, and the friction force generated when the valve ball rotates is reduced; and relative friction between the valve ball and the valve seat is avoided, so that abrasion between the valve seat and the valve ball is reduced, and the service life of the valve ball and the service life of the valve seat are remarkably prolonged.

The utility model relates to a supercritical unit drain ball valve structure which comprises a valve body, a valve rod and a valve ball, the valve body is integrally manufactured, a valve cavity is formed in the middle of the valve body, and flange holes are formed in the two ends of the valve body respectively. One side of the valve cavity is communicated with one flange hole, and the other side of the valve cavity is communicated with the other flange hole through a water through hole; a valve rod hole is formed in the middle of the upper end of the valve body, and fixing supports are arranged on the two sides of the upper end of the valve body respectively. The valve body is of an integrated die forging structure, the situation that a split valve is prone to leakage is avoided, the valve body is of a floating ball structure, and the ball body is easier to seal under high pressure; medium chromium carbide is sprayed on the ball body and the valve seat, so that the spraying hardness, the binding rate and the porosity are guaranteed, and the sealing reliability is guaranteed; a compensation disc spring is arranged between the valve seat and the positioning pressing ring, so that the valve seat ensures the mounting reliability and the sealing reliability; the thrust ring is arranged on the valve rod to limit the displacement of the valve rod and prevent the valve rod from being separated from the ball body, and safety and reliability are achieved.

The invention discloses an anti-explosion pressure relief ball valve which comprises a pressure monitoring system and a control execution system. The pressure monitoring system is used for forming a pressure distribution model; the control execution system comprises a signal processing module used for calculating the pressure change rate; the abnormal pressure identification module is used for judging whether an abnormal pressure event exists or not according to the judgment condition; the multi-stage pressure relief control module is used for controlling the opening number of the micro-channel systems and controlling the pressure relief amount according to the relation between the current pressure and a preset threshold value; the stepped pressure relief structure comprises multiple stages of pressure relief cavities, so that the pressure relief process conforms to a pressure change formula; and the dynamic feedback control module is used for dynamically adjusting the opening amount of the micro-channel by adopting a PID control algorithm. The system has the following beneficial effects that through pressure monitoring, intelligent judgment and the multi-stage controlled pressure relief module, early recognition, accurate intervention and safe disposal of abnormal pressure events are achieved, and safety accidents such as pipeline burst and flange leakage are effectively prevented.

The invention relates to the technical field of petroleum and natural gas production and transportation, and discloses a throttling device and a gas nozzle replacement method.The throttling device comprises a shell, an opening and closing piece movably arranged on the shell and a detachable throttling gas nozzle assembly, the shell is provided with a fluid channel and a detachable channel which are not communicated, and a hollow channel is formed in the opening and closing piece; the throttling air tap assembly is installed in the hollow channel, the opening and closing piece is provided with an opening position and a closing position, when the air tap needs to be replaced, the opening and closing piece can be switched to the closing position, the disassembling channel is communicated, the throttling air tap assembly is disassembled and moved out of the shell, and after replacement is completed, a new throttling air tap assembly is installed on the opening and closing piece. The opening and closing piece is switched to the opening position, the fluid channel is conducted, the throttling device continues to work, and the throttling effect on flowing fluid is achieved. According to the throttling device and the air tap replacement method, the air tap can be replaced without removing the pressure of pipelines before and after the throttling device, the replacement cost is reduced, and the replacement efficiency is improved.

Provided is a portable pumping tumbler for preparing a beverage, having both drinking water and an additive received therein, thereby enabling the additive to be pumped and added into the drinking water according to the needs of a user and enabling a beverage to be easily prepared, comprising: a drinking water tray having an opened upper part and a shielded lower end to have formed therein a drinking water storage space; a cover unit detachably coupled to the upper part of the drinking water tray to shield the upper part of the drinking water tray, and having a drinking opening formed; an additive tray detachably coupled to the lower end of the drinking water tray and has formed therein an additive storage space; and a pumping unit installed inside the drinking water tray and the cover unit.

The utility model provides a quick-connection ball valve which comprises two ball valves, the two ball valves are in linear clamping connection, each ball valve is provided with a through hole for fluid to pass through, each ball valve comprises a valve body, a valve element is arranged in each valve body, each valve element is connected with a valve rod, the end, away from the corresponding valve element, of each valve rod extends out of the corresponding valve body, and the end, extending out of the corresponding valve body, of each valve rod is connected with a handle. The handle drives the valve element to rotate through the valve rod. And the valve body is provided with a locking device. The locking device comprises a locking groove and a locking column; the handle is in driving connection with the locking column. When the handle is closed, the locking column is arranged in the valve body; when the two ball valves are in butt joint and the handle is opened, the handle drives the locking column to stretch into the locking groove of the other ball valve, the locking device locks the two ball valves, the two ball valves are prevented from rotating and disengaging, fluid leakage caused by looseness is avoided, and the safety of valve body connection is improved.

The utility model belongs to the technical field of ball valves, and particularly relates to a ball body of a ball valve, which comprises a ball body, a flow channel hole for fluid to pass through is arranged in the center of the ball body, one end of the flow channel hole is an inlet end, the other end of the flow channel hole is an outlet end, and a plurality of spiral rifling grooves are arranged on the inner wall of the flow channel hole in an annular array mode. A plurality of groups of defoaming channels are formed in the spiral rifling groove, one end, close to the direction of the inlet end, of each defoaming channel is an inlet, the other end of each defoaming channel is an outlet, the hole diameter of each outlet is smaller than that of each inlet, and the hole diameters of the inlets and the outlets in the groups of defoaming channels from the inlet end to the outlet end tend to be gradually reduced. The shape and the layout of the spiral rifling groove can improve the flowing stability of the fluid, and the defoaming channel shrinks and crushes large bubbles in the fluid step by step to enable the large bubbles to be dissolved in the liquid, so that the detection precision of the metering equipment on the fluid flow is improved, and the quality of subsequent chemical preparations or liquid blending is guaranteed.

The invention relates to the technical field of ball valves, and discloses a ball valve butt joint structure which comprises two ball valve assemblies in coaxial butt joint, each ball valve assembly comprises a valve body, a valve element and a valve rod, each valve element is movably arranged in the corresponding valve body, one end of each valve rod penetrates through the corresponding valve body and is fixedly connected with the corresponding valve element, and the other end of each valve rod extends out of the corresponding valve body and is sleeved with a gear. The butt joint end face of each valve body is provided with a rack extending in the circumferential direction, and the rack of one ball valve assembly can be meshed with the gear of the other ball valve assembly. A limiting pin is elastically connected into at least one valve body, a limiting hole matched with the limiting pin is formed in the butt joint face of at least another valve body, the limiting pin can move between a locking position and an unlocking position in the axial direction relative to the valve bodies, the limiting pin is inserted into the limiting hole in the locking position, and the limiting pin is disengaged from the limiting hole in the unlocking position. According to the ball valve butt joint structure, locking and opening of the two ball valve assemblies can be completed only through two actions, and operation is rapid and convenient.

The invention provides a high-temperature-resistant and high-pressure-resistant chemical pipeline corrugated pipe sealing ball valve and relates to the field of valves, the high-temperature-resistant and high-pressure-resistant chemical pipeline corrugated pipe sealing ball valve comprises a valve body, a valve seat assembly, a ball body and a valve rod, an upper valve cover is arranged above the valve body, a first inlet and a first outlet are formed in the valve body in the axial direction, and a first through hole is formed in the ball body; the first inlet, the first through hole and the first outlet form a medium flow channel, a first cooling cavity is formed in the valve body corresponding to the lower end of the ball body, a second cooling cavity is formed in the valve body corresponding to the valve seat assembly, a third cooling cavity is formed in the upper valve cover in the axial direction of the valve rod, and a communicating pipeline is arranged between the second cooling cavity and the third cooling cavity. The communicating pipeline is provided with a liquid inlet connector, the communicating pipeline, the first cooling cavity, the second cooling cavity and the third cooling cavity are communicated to form a cooling flow channel, and the cooling flow channel is not communicated with the medium flow channel. The ball valve is provided with the cooling flow channel, so that the ball valve can play a self-compensation function of the corrugated pipe valve seat and can be effectively protected from being damaged, and the sealing performance of the valve rod and the upper valve cover is good.

The utility model relates to the technical field of valves, in particular to an adjustable flow valve which comprises a valve assembly, the upper end of the valve assembly is fixedly connected with a flow control assembly, the inner side of the valve assembly is rotatably connected with a protection assembly, the valve assembly comprises a valve shell, and a double-column hole is formed in the inner side of the valve shell. The inner side of the double-column hole is fixedly connected with a second rubber sealing ring and a first permanent magnet, the protection assembly comprises an arc-shaped plate, a hollow groove is formed in the inner side of the arc-shaped plate, one side of the arc-shaped plate is fixedly connected with a rotating column, the top end and the bottom end of the rotating column are both fixedly connected with second permanent magnets, and the outer side of the rotating column is fixedly connected with a second bearing. According to the device, the fluid is prevented from directly impacting the pipeline, the fluid speed and impact force are controlled, noise and vibration generated by high-speed fluid due to the throttling effect are effectively reduced, and the risks of mechanical fatigue and damage are reduced.

The utility model discloses a soft sealing ball valve, which relates to the technical field of valves, and comprises a valve body and a valve seat, the valve body is provided with a medium channel, a valve rod is arranged in the valve body, the lower end of the valve rod is connected with a ball body, the upper end of the valve rod penetrates out of the valve body to be connected with an actuating mechanism, the ball body is provided with a ball body channel and a sealing surface, and the sealing surface is provided with a sealing surface. The end of the valve seat can be in sealing fit with the sealing face, the valve seat is of an elastic structure, a limiting groove is formed in the side, close to the ball body, of the valve seat, the ball body is provided with an annular protrusion corresponding to the limiting groove, and the annular protrusion is in interference fit with the limiting groove. When the valve is used under the low-temperature working condition, the limiting groove can clamp the annular protrusion, sealing leakage cannot be caused, and the sealing reliability of the valve is guaranteed.

The present invention relates to the technical field of ball valves, and discloses a multi-stage sealed hydrogen ball valve, which includes a valve seat, a valve core and a valve stem. The valve core is arranged inside the valve seat. Among them, a first support is fixed on the valve seat, a second support is arranged above the first support, and the first support and the second support are connected by a plurality of first connecting rods. A third support is arranged above the second support, and the second support and the third support are connected by a plurality of second connecting rods. Through the cable, the sliding plug and the annular bladder linkage mechanism, the present invention actively controls the separation of the sealing seat and the valve core before the valve core rotates, eliminates the frictional loss generated by direct contact during the opening and closing process of the traditional hard sealing structure. The sealing seat only contacts when the valve is closed, and there is no relative movement during the daily adjustment process, significantly prolonging the service life of the sealing component.

The present invention relates to a high-performance pneumatic metal-sealed high-frequency ball valve, which belongs to the technical field of ball valves. It includes a valve body, a valve stem, a valve core and a stroke mechanism. The stroke mechanism is used to drive the valve stem to rotate. The valve core is located in the valve body, and the valve core is fixedly connected to one end of the valve stem away from the stroke mechanism; a valve seat is slidably arranged in the valve body, and the valve seat is located between the valve core and the inner wall of the valve body, and the valve seat moves in the direction away from or close to the valve core; a first dust seal ring, an elastic element and a sealing ring are arranged between the valve seat and the valve body, and the first dust seal ring and the sealing ring are both annularly sleeved on the outer wall of the valve seat, the inner wall of the first dust seal ring is fixed to the valve seat, the outer wall of the first dust seal ring abuts against the inner wall of the slide groove, the outer wall of the sealing ring is fixedly connected to the inner wall of the slide groove, the inner wall of the sealing ring abuts against the outer wall of the valve seat, and the elastic element is located between the first dust seal ring and the sealing ring. The present invention has the effect of preventing powder in the medium from entering between the valve seat and the valve body to form self-aggregating blocks, thereby extending the service life of the ball valve.

The disclosure relates to a segmented ball valve for low noise and anti-cavitation applications, wherein a replaceable cartridge may be fixed inside and retained by stem and end post. The cartridge may incorporate irregular or regular polygonal-shaped plates or a combination of polygonal shaped plates and round bars facilitating staged pressure reduction and effectively mitigating or eliminating the occurrence of high-intensity cavitation and noise. The segment may have a precisely machined cylindrical bore designed to accommodate a slide-fit anti-cavitation and noise reduction cartridge; this allows for convenient field replaceability of the cartridge with minimal effort, eliminating the need for welding or fasteners to affix it to the segment. This cartridge may also facilitate the utilization of this fully cylindrical bore inside the segment for incorporating a greater number of pressure reduction stages compared to the currently available designs.

The invention relates to the technical field of valves, in particular to a metal hard sealing ball valve which comprises a main valve body structure and a sealing adjusting structure. The main valve body structure comprises a valve shell, a ball assembly and a valve seat assembly, and the sealing adjusting structure comprises an elastic compensation unit and a guide supporting unit. A hardening treatment layer and a micro-convex texture structure are arranged on the outer surface of the ball assembly, and a flexible filling material is embedded in a sealing ring on the inner side of the valve seat assembly. The elastic compensation unit dynamically adjusts the position of a valve seat through a spring assembly, and the guide supporting unit ensures movement stability. The inner wall of the valve shell is provided with a diversion trench to optimize a fluid path, and the outer wall of the annular valve seat is provided with radiating fins to improve high-temperature resistance. The sealing performance can be remarkably improved, friction and abrasion are reduced, the fluid scouring influence is reduced, the leakage problem under the high-pressure or high-temperature or high-abrasion working condition is solved, and the service life is prolonged.

A multi-port valve assembly, including a housing, a plurality of ports formed as part of the housing, and a rotor disposed in the housing, the rotor selectively in fluid communication with the ports. A first channel is integrally formed as part of the rotor, and a circumferential wall is part of the first channel, the circumferential wall at least partially surrounding a circular aperture which is also part of the first channel. The multi-port valve assembly also includes a second channel integrally formed as part of the rotor, the second channel fluidically isolated from the first channel, and at least two flow paths formed by the orientation of the rotor relative to the housing and the ports. The rotor is placed in one of a plurality of configurations relative to the ports and the housing such that each of the plurality of configurations includes the flow paths.

A multi-way valve adapted to control a flow of fluid to different thermal fluid circuits includes a valve housing, a valve flow controller, and sealing systems. The valve flow controller is arranged in the valve housing to control flow through the valve housing. The sealing systems are configured to seal between the valve housing and the valve flow controller.

A deep sea ball valve with an improved valve seat sealing system comprises a valve body, a valve rod, a valve element, a valve seat box and a valve seat matched with the valve element, the valve seat comprises a supporting ring, the supporting ring comprises a sealing face used for being matched with the valve element in a sealing mode, and the sealing face comprises an upper sealing angle and a lower sealing angle. The upper sealing angle is used for supporting the valve element and forms sealing with the valve element, the lower sealing angle is in clearance fit with the valve element when the valve is opened and is in interference fit with the valve element when the valve is closed, compared with one sealing, the upper sealing angle and the lower sealing angle are safer, spherical dirt is wiped away in the opening and closing process of the upper sealing angle, and the sealing effect is better. The lower sealing angle is protected, sealing is more durable, the sealing angle does not make contact with the valve element when the valve is in a normally-open state, the problem of material fatigue is avoided, and the problem of root leakage of an original sealing ring is solved through the integral design that the supporting ring and the sealing face are combined into one.