3575results about "Plug valves" patented technology

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.

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 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 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 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 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 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-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.

The invention relates to the technical field of valve detection, in particular to a valve with a leakage detection function, which comprises a valve body, the two sides of the valve body are respectively connected with the end parts of an input pipe and an output pipe, a valve core is rotatably sealed in the valve body, a through hole is formed in the middle of the valve core in a penetrating manner, and a detection hole is formed in the bottom of the through hole in a penetrating manner; the bottom of the valve body is in threaded connection with the input end of the pressure gauge through a detection pipe, a second valve element is rotationally sealed in the detection pipe, a second detection hole of the second valve element is perpendicular to the detection hole, and the valve body is in threaded connection with the input end of the pressure gauge through the detection pipe. And the accuracy of detecting the pressure in the pipeline structure by the pressure gauge is also improved.

The invention belongs to the technical field of valves, and particularly discloses a self-pressure-control cut-off ball valve which comprises a valve shell, a sealing cavity is formed in the middle of the interior of the valve shell, a spherical valve element is rotationally arranged in the middle of the inner wall of the sealing cavity in a sealed mode, the middle of the spherical valve element is in a through opening shape, and an indicating groove is formed in the bottom of the valve shell. When pressure in a pipeline rises, the transmission assembly can be triggered in the valve shell to work so that the spherical valve element can rotate, then the valve shell is opened and conducted, the transmission assembly can be further driven to work along with pressure rising, and when the maximum pressure value of the valve is reached, the transmission assembly can be driven to rotate, so that the transmission assembly can be driven to rotate. At the moment, the opening degree of the spherical valve element in the valve shell is in the maximum state, the limiting assembly is triggered to limit the transmission assembly at the moment, the situation that the spherical valve element continues to rotate, and consequently the opening degree is decreased is prevented, and opening and closing of the valve can be automatically adjusted according to changes of the pressure in the pipeline.

System (100) for heating a longitudinal edge of a packaging web advancing along an advancement path; the system (100) comprising an actuating apparatus (103) configured to adjust an air flow to be fed for heating a longitudinal edge of the packaging web. The actuating apparatus (103) comprises: a valve (104) configured to adjust the air flow to be fed for heating the longitudinal edge of the packaging web; and an actuator (105) coupled to the valve and configured to adjust a position of the valve (104) to control the air flow based on at least one between a parameter (Δf, T, p) associated to the air flow and a parameter associated to the movement of the packaging web along the advancement path.

The invention belongs to the related field of valve bodies, and discloses an intrusive flow-state-controllable high-pressure ball valve which comprises a valve body, a valve element and valve rod assembly, a shaft sleeve assembly, a sealing assembly, a sealing valve seat assembly, a ball valve spring assembly and a valve body pressing sleeve. The sealing valve seat assembly and the valve body pressing sleeve seal the valve element in an overlapped mode, and the integration degree of the ball valve is improved. A threaded hole is formed between the shaft sleeve assembly and the valve body pressing sleeve assembly, so that the positioning difficulty and the ball valve mounting difficulty are reduced; the valve element assembly is matched with the valve seat sealing assembly and the sealing gasket assembly in a PEEK-titanium alloy matching mode, so that the friction force in the movement process of the valve element assembly is reduced, and the possibility of clamping stagnation of the valve element assembly is reduced; o-shaped rings are arranged among the valve seat sealing assembly, the inner wall of the valve body and the valve body pressing sleeve, good sealing performance is kept for a long time, and the service life of the deep sea high-pressure ball valve is prolonged; a certain gap is reserved between the end, with the containing area sealed, of the valve seat and the ball valve spring assembly, and it is ensured that effective sealing can be established between the valve element assembly and the valve seat.

The invention relates to the technical field of plug valves, and provides a multi-channel plug valve which comprises a valve body, a valve element, a valve element, a valve element and a valve element. A mounting space is formed in the valve cover; the plug cock is arranged in the valve cavity, can rotate around the central axis of the plug cock and can move along the central axis of the plug cock; the lining is arranged on the inner wall of the valve cavity and matched with the outer wall of the cock; the rotating source is arranged on the valve cover; the selective transmission mechanism is arranged in the mounting space and comprises an input end, a first output end and a second output end; the axial transmission part is movably arranged in the mounting space along the central axis of the cock and is in transmission fit with the second output end; the detection part is arranged on the valve body; and a controller. According to the multi-channel plug valve, the sealing state of the lining can be detected in real time, the plug cock is controlled to axially move to press the lining so as to compensate sealing, and then the sealing performance of the multi-channel plug valve is improved.

The invention provides a ball valve with a protection function, and belongs to the field of ball valves, the ball valve comprises a valve body, a liquid inlet pipe, a liquid outlet pipe and a ball body, the ball body is located on the inner side of the valve body, the liquid inlet pipe and the liquid outlet pipe are located on the two sides of the valve body, the valve body is fixedly connected with the liquid inlet pipe and the liquid outlet pipe, and the end of the liquid inlet pipe and the end of the liquid outlet pipe are fixedly connected with connecting flanges. The pressure relief assembly is arranged on the inner side and the bottom of the valve body, and the pressure relief assembly is used for relieving pressure in an external pipeline; the anti-leakage assembly is arranged on the inner side of the valve body, and the anti-leakage assembly is used for blocking when the ball valve is in abnormal high temperature; and the switch assembly is arranged above the valve body, and the switch assembly is used for opening and closing the ball valve. According to the pressure relief valve body, the first sealing seat is pushed by high-pressure fluid to move downwards to compress the first spring, so that the fluid flows into the liquid drainage pipe through the through holes of the upper support and the lower support and is relieved into the temporary liquid storage tank, and the pressure relief process of the valve body is completed.

The utility model relates to the technical field of valves, in particular to a low-torque ball valve which comprises a valve body, a ball core, a valve rod and an executing mechanism, a flow channel and a rotating cavity for the ball core to rotate are arranged in the valve body, an overflowing hole penetrates through the center of the ball core, the executing mechanism drives the ball core to rotate through the valve rod, and a valve seat is further arranged in the valve body. The valve seat and the ball core are matched in a sealing mode to divide the flow channel into an inlet end and an outlet end, an auxiliary flow channel is formed in the valve body, the inlet end is communicated with the rotating cavity through the auxiliary flow channel, a through hole is formed in the ball core, the overflowing hole is communicated with the rotating cavity through the through hole, and a piston assembly is arranged in the auxiliary flow channel and comprises a piston piece and an elastic piece. According to the ball valve, fluid at the inlet end flows into the rotating cavity and the overflowing hole, hydraulic pressure on the inner side and the outer side of the ball core is balanced, and the rotating torque of the ball core is reduced.

A fluid connector includes a shell having a fluid channel, a ball valve accommodated in the shell and having a through hole, a control element arranged outside the shell for controlling the ball valve to rotate, and a pin member. A front end of the shell for engaging a matching connector has an engagement hole. The control element controls the ball valve between a closed position and an open position. The through hole is in fluid communication with the fluid channel when the ball valve is at the open position. A front face of the shell has an accommodating hole for accommodating the pin member. A resilient member is arranged in the accommodating hole for supporting the pin member. The pin member obstructs the rotation of the control element unless it is in a set position.

A fluid control valve includes a valve housing having a fluid inlet and a fluid outlet. A valve body is disposed within the valve housing and is transitional relative to the valve housing between an open position and a closed position. In the closed position, the valve body prevents fluid flow between the fluid inlet and the fluid outlet. The valve body is incrementally transitional from the closed position to the open position to incrementally increase the amount of fluid flow from the fluid inlet to the fluid outlet. A flow control element is positioned within the valve housing downstream of the valve body. The flow control element includes a peripheral body and an inward body having a plurality of flow control passageways extending therethrough. The flow control element additionally includes an opening defined collectively by the peripheral body and the inward body.

The invention provides a low-torque hydraulic balance ball valve, which relates to the technical field of valves, and comprises a valve body, a circular cavity is arranged in the valve body, a rotating shaft is arranged on the valve body in a penetrating manner, a valve core is arranged in the circular cavity, the rotating shaft is connected with the valve core, the valve body is also provided with a connecting channel, and the inlet end of the valve body is connected with the circular cavity through the connecting channel in a penetrating manner; a connecting hole is formed in the valve element, the valve element is communicated with the circular cavity through the connecting hole, a driving rod is arranged in the connecting channel, a stable sealing device is further arranged in the valve body, the driving rod is used for driving the stable sealing device, and the stable sealing device is used for enhancing the sealing effect of the rotating shaft and the circular cavity. The stable sealing device is arranged, the sealing action and the hydraulic balance process are synchronously carried out, an additional power source is not needed, the sealing effect of the rotating shaft and the circular cavity is synchronously enhanced in the hydraulic balance process, and dual optimization of torque reduction and leakage prevention is achieved.

The invention relates to the technical field of well drilling ball valves, and discloses a well drilling ball valve restarting device which comprises a ball valve shell, a mounting bin is mounted at the upper end of the ball valve shell, a driving assembly is arranged in the mounting bin, a first auxiliary restarting assembly is mounted on one side of the driving assembly, and a second auxiliary restarting assembly is mounted on the other side of the driving assembly. And a second auxiliary restarting assembly is arranged on the other side of the driving assembly. According to the well drilling ball valve restarting device, through the first auxiliary restarting assembly, a driving motor drives a belt to tighten a belt pulley so as to increase friction force, a valve rod is driven to rotate, the restarting reliability is enhanced, the high friction force is used for overcoming the valve ball clamping stagnation problem, the manual risk is reduced, remote or automatic operation is supported, manual intervention in the high-risk environment is reduced, and the well drilling ball valve restarting device is suitable for popularization and application. Through the second auxiliary restarting assembly, redundant restarting capacity is provided, the second auxiliary restarting assembly serves as a secondary backup to ensure reliability when motor driving fails, the structure is simple, response is fast, a pneumatic system acts fast, and the system is suitable for emergency working conditions.

The invention belongs to the technical field of ball valves, and particularly relates to an overpressure emergency self-pressure-relief ball valve which comprises a ball valve shell, a driving assembly is installed at the top end of the ball valve shell, a valve element is rotationally connected into the ball valve shell, the top end of the valve element is fixedly connected with the end of a rotating shaft of the driving assembly, and a liquid outlet is formed in one side of the ball valve shell. A butt joint shell is installed on the side, away from the liquid outlet, of the ball valve shell, a first pressure relief shell is fixed to the top end of the butt joint shell, a first spring is arranged in the first pressure relief shell, a first pressure relief block is fixed to the bottom end of the first spring, and a liquid inlet pipe is fixed to one end of the first pressure relief shell; by screwing the stud, the push block can be driven to extrude the first spring, meanwhile, under the limiting effect of the limiting block and the guide groove on the first pressure relief block, the pushing pressure of the first pressure relief block can be adjusted, and the first spring can be adjusted to the corresponding pressure according to the use scene.

The invention discloses a bidirectional torque double-isolation release ball valve and an assembling method thereof, the ball valve comprises a valve body and two ball valve assemblies, and a fluid channel is arranged in the valve body; each ball valve assembly comprises a ball valve element, an adjusting nut, a valve seat and a gland, the ball valve element is arranged in the valve body, an overflowing through hole is formed in the ball valve element, a first seat body and a second seat body of the valve seat are arranged on the two opposite sides of the ball valve element, the first seat body is connected with the edge of one end of the overflowing through hole, and the second seat body is connected with the edge of the other end of the overflowing through hole. The adjusting nut is arranged in the middle of the fluid channel in a screwed mode, the position of the adjusting nut can be axially adjusted relative to the fluid channel, the interior of the gland is through, the gland is arranged at the end of the fluid channel in a screwed mode, the position of the gland can be axially adjusted relative to the fluid channel, the adjusting nut can push the first seat body, and meanwhile the gland can form back pressure on the second seat body. According to the ball valve, reverse jacking force and return pressure can be applied to the ball valve element, and radial limiting of the ball valve element is achieved.

A fluid connector includes a shell having a fluid channel, a ball valve accommodated in the shell and having a through hole, a control element arranged outside the shell for controlling the ball valve to rotate, and a pin member. A front end of the shell for engaging a matching connector has an engagement hole. The control element controls the ball valve between a closed position and an open position. The through hole is in fluid communication with the fluid channel when the ball valve is at the open position. A front face of the shell has an accommodating hole for accommodating the pin member. A resilient member is arranged in the accommodating hole for supporting the pin member.

The invention discloses a quick-change type ball valve with double mechanical interlocking assemblies, and particularly relates to the technical field of fluid control equipment, the quick-change type ball valve comprises a first ball valve and a second ball valve, and the second ball valve is installed on the side face of the first ball valve through a buckle; the first ball valve comprises a first valve element, a first valve seat, a first ball valve handle, a marble, a first pin and a first connecting buckle, a circular hole is formed in the upper wall of the first valve seat, a horizontally-placed first rectangular fillet long plate is arranged above the first ball valve handle, and a second arc-shaped groove is formed in the fillet position; a vertically-placed first threaded long rod structure is installed below the first rectangular fillet long plate, the first threaded long rod structure of the first ball valve handle vertically penetrates through a first circular hole of the first valve seat, and the first threaded long rod structure is rotationally connected with the first circular hole of the first valve seat.

The invention discloses a precise dust fall and explosion suppression control method for a fully mechanized coal mining face and a combined type electric ball valve, and relates to the technical field of automatic control. The method comprises the following steps: step 1, an intelligent control device synchronously issues a sampling trigger instruction to a dust monitoring assembly, a spray monitoring assembly and a vibration monitoring assembly; when the three sequences simultaneously meet the preset trigger conditions, generating a trigger event and a control starting point; 2, dividing service areas based on a valve group topology table, determining a target service area, and obtaining a candidate sequence from far to near according to the connection sequence of the valve group topology table and a combined manifold; and 3, the target valve position sequence and the action window are issued to a soft opening and closing curve generator so as to drive an execution motor speed reduction self-locking mechanism in each electric ball valve unit. According to the invention, through collaborative optimization in three aspects of monitoring, scheduling and execution, limitations in triggering accuracy, multi-valve coupling control and execution reliability in the prior art are broken through.

The invention discloses a pneumatic ball valve and a production process thereof, and relates to the technical field of ball valves, the pneumatic ball valve comprises a valve body, a valve core is rotatably connected in the valve body, two auxiliary rings are fixed in the valve body, the pneumatic ball valve further comprises a sealing assembly, and the sealing assembly comprises a sealing ring which is in sliding connection with the auxiliary rings and is used for sealing a gap between the valve core and the valve body; the impurity removing assembly comprises a guide ring connected with the auxiliary ring in a sliding mode, and a plurality of scrapers which are distributed in the circumferential direction and can rotate are arranged on the guide ring and used for removing impurities on the outer surface of the valve element; the driving assembly comprises a guide ring connected with the valve body in a sliding mode, when the valve element rotates, the guide ring extrudes gas to drive the scraper to slide in the direction of the valve element, and the guide ring extrudes gas to drive the sealing ring to slide in the direction away from the valve element; residues can be effectively cleaned, and the sealing performance can be guaranteed.

The invention discloses a cryogenic high-frequency ball valve, a valve seat and a sealing assembly, and belongs to the field of valves.The cryogenic high-frequency ball valve comprises a shell and a ball body, the shell is of a hollow structure, a cavity is formed in the shell, the ball body is located in the cavity, the cryogenic high-frequency ball valve further comprises the sealing assembly, the sealing assembly comprises a supporting ring and the valve seat, and the supporting ring is installed on the inner wall of the shell; the supporting ring is provided with an installation groove, the valve seat is installed in the installation groove and abuts against the ball body, a sealing face is formed between the outer surface of the valve seat and the inner wall of the installation groove, a reserved gap is formed between the tail end of the valve seat and the tail end of the installation groove, and when the valve seat shrinks, the valve seat further fills the reserved gap under abutting of the ball body. The sealing surface between the outer surface of the valve seat and the inner wall of the mounting groove is prevented from being damaged due to the fact that a gap is generated on the sealing surface between the valve seat and the mounting groove.

The utility model relates to an inverted metal sealing ball valve, which relates to the technical field of ball valve sealing, and comprises a valve body, a self-sealing end cover, a main valve seat, a main valve seat and a sealing cover, the bottom of the valve body is provided with a mounting port for mounting an integrated ball rod, the self-sealing end cover is used for sealing the mounting port, and the main valve seat is in sealing fit with the integrated ball rod; one end of the self-sealing end cover is in sealing fit with the main valve seat, the other end of the self-sealing end cover is in sealing fit with the auxiliary valve seat far away from the integrated ball rod, and a first disc spring is arranged at the contact position of the self-sealing end cover and the integrated ball rod. The integrated ball rod is arranged, so that the situation that a valve rod and a ball body of a traditional ball valve are not suitable for high-frequency operation occasions due to the fact that a flat tenon or square tenon connecting structure is adopted is avoided; by means of the valve, the reliability of opening or closing of the valve is guaranteed, and the sealing effect can be improved by arranging the first disc spring.

The invention relates to the technical field of block valves, in particular to a self-compensation type intelligent block valve. Comprising a valve body, a ball body is rotatably connected in the valve body, the valve body is provided with a liquid inlet and a liquid outlet, the upper side of the ball body is fixedly connected with a valve rod rotatably connected with the valve body, the upper side of the valve body is rotatably connected with a rotating rod perpendicular to the space of the valve rod, and the upper side of the valve body is provided with a first cavity; the rotating rod and the valve rod are in transmission through a power module, the valve rod is in limited sliding connection with an inserting rod, and the inserting rod is fixedly connected with a limiting column. According to the cut-off valve, the limiting column is clamped into the upper side of the limiting groove to accurately control opening and closing of the ball body, whether the ball body is in the opening and closing state or not is directly fed back to an operator through the extending length of the inserting rod, and transmission deviation caused by problem observation of the operator or pipeline vibration is avoided; therefore, an operator misjudges the state of the cut-off valve, and normal operation of the cut-off valve is affected.

A closure element for a fluid end assembly that has two or more recessed grooves formed in its outer surface. The grooves are axially offset. A seal is placed in one and only one of the grooves. As wear occurs, the seal is relocated to one of the other grooves. Instead of a series of axially offset grooves in a single closure element, a kit may be formed from two or more otherwise identical closure elements, each with a single recessed groove at a different axial position. Another closure element has a series of ledge-like surfaces defining spaces within which a seal may be received. One outer surface surrounds one or more of the other surfaces. A seal is placed in one and only one of the spaces. As wear occurs, the seal is relocated to one of the other spaces.

The invention discloses a multi-way valve, a heat management system and a vehicle, the multi-way valve comprises a shell and a valve core, the valve core is movably arranged in a mounting cavity, a first flow channel is formed in the valve core, one side of the first flow channel in a first direction is provided with a first communicating port, a second communicating port and a third communicating port, the first communicating port is suitable for being in switching communication with a first valve port, and the second communicating port is suitable for being in switching communication with a second valve port; the second communicating port is suitable for being communicated with one second valve port in a switching mode, the third communicating port is suitable for being communicated with the other second valve port in a switching mode, and the first flow channel is used for enabling at least one of the two second valve ports corresponding to the second communicating port and the third communicating port to be communicated with the first valve port in a switching mode; the edges of the sides, deviating from each other or opposite to each other, of the second communication port and the third communication port form bevel edges respectively, the bevel edge of the second communication port and the bevel edge of the third communication port are obliquely arranged relative to the second direction, and the inclination directions are consistent. According to the multi-way valve provided by the embodiment of the invention, the multi-way valve has more flow regulation selections.