Plug Valves TRIZ Cases

See how a cartridge-type ball valve merges refrigerant passages into the housing to eliminate s

See how a rotatable valve body with dual expansion grooves integrates multiple expansion functi

See how a preassembled connection housing, shaft, and spherical control surface insert as one u

See how merging heat exchanger and valve assemblies into a unified refrigerant module reduces a

See how pressure and valve-position sensors replace direct flow sensors to determine flowrate i

See how a rotational valve body eliminates linear movement space in refrigerant piping plates,

See how a four-way ball valve uses three sealing seats and one unsealed high-pressure inlet to

See how a sealing ring holder with pre-assembled valve element and elastic sealing rings enable

See how pressure differential and valve stem displacement measurements replace direct flow sens

See how elastic abutting assemblies and positioning grooves enable tactile gear-based firepower

See how a segmented gear switch with discrete positioning structure simplifies plug valve desig

See how integrating the rotation stop into the housing bore eliminates external components, red

See how a six-port valve merges expansion, check, and direction control into one component to r

See how pressure and displacement sensors replace direct flow sensors in HVAC valves, enabling

See how a rotatable ring with O-rings eliminates anaerobic sealants, reduces assembly space, an

See how a single O-ring sealing element enables valve rotation to compensate for pressure chang

See how a thickened lip portion on the seal member prevents rapid wear and catching during inle

See how a segmented L-shaped housing design with conical geometry reduces material usage and as

See how two three-way expansion valves enable multiple heat management modes—cooling, heating,

See how magnetic coupling enables wall-embedded valve control without surface penetration, pres

See how a reversible plug-type valve with opposing ports enables right-hand or left-hand plumbi

See how a unified expansion tank assembly merges isolation valves, tees, and mounting brackets

See how a rotatable valve body replaces linear movement in refrigerant pipe units, eliminating

See how asymmetric handle stops and opposing plug seals enable reversible isolation valve opera

See how a two-stage rotating lid prevents unintended opening, while an integrated pumping unit

See how a two-stage rotating lid prevents unintended opening during carrying while a detachable

See how a flange-coupled valve actuator uses segmented assembly and seal rings to fit standard

See how a pre-assembled spherical control surface unit inserted through a single opening reduce

See how a dual-valve tee with primary and secondary ports enables Schrader valve core removal a

See how separating flow switching from flow regulation using a 3-way changeover valve and dedic

See how merging plug and proportional valves into one body maintains dual sealing structures wh

See how a four-way valve uses air passage structure and high-pressure medium to press the seali

See how a motorized discharge valve with microprocessor control automates limescale removal in

See how a single valve element with throughlet and expansion recess enables bidirectional refri

See how a tapered closing member with local thickness variation reduces pressure forces, enabli

See how a balancing valve integrates a second through-hole by-pass passage to enable maintenanc

See how a 3/2-way expansion valve merges cutoff and expansion functions into one element, reduc

See how a continuously rotatable valve core with flexible sealing reduces wear and leakage whil

See how a manual gas valve uses an internal spring at constant installed height to maintain sta

See how a multipath ball valve merges multiple valve functions into one housing to reduce refri

Concentric outflow and return pipes recirculate and preheat water to avoid stagnation, maintain sanitary temperatures, and cut hot water waste.

See how a compact cylindrical valve with two integrated valve elements enables independent heat

See how a plug valve with change-over switch and driving mechanism enables automatic fire contr

See how a dual-valve tee enables Schrader valve core removal and replacement in HVACR systems w

See how a piston plug valve integrates stop, metering, and check functions to reduce valve coun

A removable bayonet-locked valve cartridge adds remote water control to wall-mounted plumbing while keeping sealing, strength, and maintenance practical.

See how a nested bypass conduit with varying cross-sections enables pressure equalization in mu

See how an internal spring with constant installed height applies consistent force to the valve

A nested pressure regulator beneath the ball shutter cuts valve length while maintaining stable flow and temperature control in HVAC systems.

A bypass recirculation path drives depurated coolant back through passage ducts to remove lubricant residues and prevent contamination.

An arcuate Hall sensor array and rotating magnetic source enable precise off-axis valve position and flow rate detection without contact.

Pressure feedback from multiple plant sections adjusts the check element to keep conditioning plant flow aligned with reference values.

Opening grooves and a sleeve protrusion shape the required flow curve while balancing valve rod pressure and improving sealing stability.

A sliding adapter and O-ring seal let a shower bar fit different wall thicknesses and pipe positions without stressing the water supply pipe.

Differential-pressure elastomer seals replace metal springs and interference fits to cut valve torque, wear, and leakage.

Pressure-sensor feedback and a programmable control valve keep HVAC circuit flow and pressure aligned with stored reference values.

An adjustment screw lets HVAC PICCVs set maximum flow in the field, cutting balancing time while improving control accuracy under pressure changes.

A compact ball valve assembly combines open and bypass flow paths to simplify tankless water heater flushing in tight installation spaces.

A sensor-triggered motor and spring-compressed tube dispense toothpaste cleanly with consistent dosing and easier use for limited hand strength.

Two concentric valve rings let engineers preset maximum liquid flow and modulate it to zero while the governor keeps differential pressure constant.

A combined check valve, venturi, and shutoff valve enables accurate hydronic flow balancing, backflow prevention, and lower valve count.

Press-fit teeth and resilient legs lock the valve insert securely while shaping outlet flow for a linear heat or cooling response.

Combining isolation and drain functions in one valve assembly simplifies expansion tank and pressure reducing valve maintenance in hydronic heating systems.

A deformable rotatable valve adjusts sip flow by suction while maintaining leak-resistant sealing for infant drinking containers.

A magnetically locked vessel closure contains biological waste, prevents spillage, and supports automated cleaning with less worker exposure.

A pressure-relief flushing unit uses driving gas to displace flushing agent while preventing reservoir over-pressurization in HVAC systems.

A cup-shaped body, spring, and rolling membrane simplify valve structure while keeping differential pressure and flow rate steady.

A two-level rotary valve links three or more ports through one passage, simplifying EV coolant switching while preserving flexible flow paths.

A rotary valve slide inside the fluid chamber speeds switching and throttling while improving sealing, accuracy, and service life.

A rotatable valve and localized sealing layout switch thermal fluid paths while reducing friction and maintaining sealed connections.

A rotating ball valve removes choke points in tubeless bicycle tire inflation and deflation without repeated valve disassembly.

A lever-operated ball valve removes sealant choke points and controls tire inflation flow without disassembling the bicycle valve.

Nested housing and casing channels separate media flows, cutting EV thermal distribution space and simplifying multi-line routing.

A nested housing and covering create separate flow volumes to prevent fluid mixing while saving installation space in temperature control circuits.

A rotary seal plate isolates reactive process gas while shielding sealing surfaces and enabling simultaneous purge with efficient gas flow.

An eccentric valve body shifts natural frequency and airflow path to stop whistling resonance while keeping the two-way check valve simple and low cost.

A circumferential bypass flow path lets fluid avoid restricted radial transitions, cutting pressure loss and improving permeability.

Independent valve core elements simplify rotary valve manufacturing while enabling precise control of coolant flow direction and volume.

A segmented vacuum layout lets users remove and clean the first ion guide without venting the analyser, cutting downtime and preserving transmission.

Independent valve core elements with separate channel structures simplify rotary valve design while enabling precise control of multiple thermal circuits.

A layered rotary valve centralizes coolant routing across vehicle thermal components, cutting peripheral pipes, weight, and packaging space.

An L-shaped sliding seal and elastic preload reduce rotary valve wear while maintaining smooth sealing and simpler assembly in vehicle cooling circuits.

An inert purge gas fills the valve cavity and bore to block hazardous process gas release and protect seals in vacuum isolation service.

A secondary shutoff valve linked to a second circuit adjuster changes fluid flow to tune compression damping across terrain and riding conditions.

A multilayer ball valve switches five fuel cell coolant ports with one actuator, cutting housing volume, components, and control complexity.

Bypass flow ways and communication notches relieve pressure surges during valve switching, reducing leakage risk and improving flow smoothness.

A rotatable multi-port valve selectively connects or blocks fluid ducts, improving compact flow control and mixing in vehicle thermal systems.

Water-driven electromagnetic induction powers automatic pipe valve adjustment, cutting manual labor and external power use.

An off-center welded joint and curved ribs reduce stress concentration in a manifold housing under rising fluid pressure.

A dielectric disk and non-conductive fasteners isolate the motor from the ball shaft while preserving torque transfer in wet valve drives.

A dielectric insert between motor and ball shaft preserves torque transfer during jams while blocking electrical faults and enabling manual operation.

Multiple internal passages and chambers cut external pipeline connections, lowering fluid resistance in thermal management flow routing.

Magnetic coupling lets the transfer gear idle at the stopper, preventing overload damage and removing extra limiter hardware.

A dielectric shaft joint uses non-conductive fasteners to block motor-side electrical faults while preserving torque transfer to the ball shaft.

Magnetic coupling lets the transfer gear slip at the stopper, preventing gear damage while removing separate sensors and limiter switches.

A pressure-driven shuttle valve vents air and controls hydraulic refill to prevent brake simulator isolation and sudden pedal stiffness.

A pressure-driven shuttle bleed valve vents trapped air from brake hydraulics while limiting vacuum formation and simplifying fluid management.

A curved isolation valve lets users remove and clean contaminated ion guides without venting the analyser, cutting downtime and preserving vacuum.

A throttling valve and spring-loaded piston regulate gas bottle flow and preset tire pressure to prevent over-inflation without extra gauges.

A partial-arc sealing body with aligned through holes simplifies multi-flow-path valve sealing while lowering manufacturing difficulty and cost.

A spiral reinforcing rib strengthens a rotating valve core, limiting twist deformation, leakage, and instability while keeping wall thickness uniform.

A rotary spring biases the RAT re-stow pump valve back to ARM, cutting operator effort while preserving reliable mode switching.

Beveled debris sleeves redirect buildup away from the rotating ball valve, cutting friction and lowering actuation force in dirty wells.

A spring-supported pin blocks ball valve rotation until connector engagement, reducing leakage risk while simplifying the connector structure.

A shoulder-retained stem and fixed retainer in a unitary eccentric control valve prevent blowout under high pressure while keeping the body efficient.

A rotating shutter and separate straight cleaning channels let pigs clean transverse pipe connections while maintaining compact flow switching.

A partial-spherical blocking element and overlapping seats cut turbulence and mechanical stress while preserving fast shut-off and throttle control.

An integrated sealing assembly in the valve housing improves sealing while lowering valve core torque, wear, and heat generation.

Coolant pressure biasing across rotor regions replaces a large spring, shrinking the valve while maintaining sealing and lowering rotation torque.

An integrated cover pressing portion restrains sealing member deformation under fluid pressure, preventing leakage without enlarging the rotary valve.

An elliptical disc and single gasket cut rotary valve torque while simplifying top-loaded water meter assembly and sealing.

Direct electromagnetic beam sensing confirms aircraft fuel valve open or closed state in real time, avoiding false readings from indirect linkages.

A nested inner and outer valve core stabilizes flow, eases outlet connection, and expels residual water to prevent freezing.

A biased rotor presses against an intermediary seal, stabilizing sealing pressure despite dimensional errors while reducing torque and pressure buildup.

Alternating axial translation and rotation cuts multiport valve friction and torque while preserving sealing during port switching.

A pin engaging aligned slot and pin-hole features simplifies ball valve assembly while securely retaining the one-piece ball assembly.

A rotor with integrated channels and one BLDC-driven actuator creates multiple coolant flow paths while cutting valve complexity and cost.

A threaded pressing rod and sealing washer combine water curtain and shutoff functions in one unit, cutting installation steps and cost.

Coupled rotary ball and disc valves enable continuous coolant distribution control for vehicle powertrain temperature management.

Offsetting the valve core and impeller at different heights simplifies channel routing and lowers flow resistance in compact fluid control assemblies.

A segmented ball-port profile improves low-flow accuracy while preserving high flow capacity and reducing sensitivity to actuator positioning errors.

A removable insulated valve assembly enables in-line servicing while limiting heat transfer and pressure drop in cold box applications.

A translating valve stem with manual retention replaces springs to protect sensitive fluids, maintain sterility, and improve flow control.

A rotary multi-port valve centralizes EV fluid routing with magnetic coupling, cutting hoses, leakage risk, pressure loss, and assembly effort.

Two inline flow restrictors separate high-pressure relief from adjustable control, protecting sealing faces from abrasive flow.

Integrated total and static pressure taps in the valve shutter enable flow measurement without separate meters, extra space, or pipe changes.

An elastomer seal clamped in the rotary part improves low-pressure sealing, blocks bulk material ingress, and reduces wear.

Oblique intersecting channels on a cylindrical flow control body dissipate pressure progressively to curb cavitation, vibration, and turbulence.

A rotatable valve aligns segmented flow paths to switch one-to-many, many-to-one, and split-merge fluid routing in compact circulation systems.

Alignment collars and indexing features pre-position a valve handle for tight spaces while protecting threaded seals from loosening and leaks.

A diaphragm-based lock senses pressure differentials to stop premature valve opening and unwanted air flow in vacuum conditions.

Pressurized fluid and grease flow paths create a secondary metal seal in a high-pressure plug, improving sealing reliability under debris and tolerance changes.

A rotary valve with a movable seal and force generator enables continuous coolant flow control in tight vehicle packaging.

Minimal-clearance sealing and shaft-to-core coupling simplify a rotary hydraulic distributor while reducing leaks, mass, and joint complexity.

A geared ball valve with integrated housing enables progressive purge flow control, lower noise, self-cleaning action, and low power use.

A V-shaped characterization insert gives a standard ball valve precise throttling control while avoiding the cost of a full V-port design.

A lever-interlocked sleeve blocks uncoupling while the valve is open, enabling secure, pressure-independent pipe joint attachment and detachment.

A split retainer keeps sealing elements from rotating during compact valve assembly, reducing wear and preserving seal integrity.

A vertically rotating spherical valve body with bevel gears cuts valve width while improving flow control speed and reducing leakage.

A turbine rotor inside a spherical-segment valve recovers fluid energy while improving flow adjustment accuracy and lowering torque.

An off-axis passage gives barrel valves near-linear flow metering with under 120° rotation while reducing manifold size and weight.

An integrated elastic pad and sealing piece prevents seal rotation, cuts friction, and simplifies multi-passage valve assembly.

Independent rotor seals and biasing assemblies expand valve flow paths while reducing leaks, friction, torque, and manufacturing complexity.

Two valve flow modes balance low energy loss during normal operation with higher turbulation to remix settled high-density fluid.

A rotating rotor with isolated channels cuts pressure drop, preserves sealing, and supports higher coolant flow in thermal management.

Mechanical ring actuation compresses annular seats against the ball to maintain robust sealing when fluid pressure alone is insufficient.

A cam follower lifts the sealing seat off the ball during opening, cutting rubbing wear while preserving metering accuracy and leakage control.

Integrated rotor beads compress a multi-profile seal element to maintain sealing across valve orientations and reduce coolant leakage.

A stop portion and valve-core limit feature create a precise reference position for accurate coolant flow-path switching in EV and hybrid valves.

A cruciform valve body with internal control elements simplifies three-way flow regulation while enabling precise 0-100% fluid mixing modulation.

A rotating shaft aligns and misaligns valve openings to stop suction reliably and avoid sticking in endoscope suction valves.

A segmented seal ridge localizes gasket contact in a ball valve to cut friction and torque while extending valve and seal life.

A cruciform three-way valve simplifies structure while enabling precise 0-100% opposite flow modulation and accurate fluid mixing.

A hard-soft composite seal stabilizes rotary valve sealing under high pressure differentials to prevent deformation and internal leaks.

A differential-pressure seat and bushing keep metal sealing surfaces engaged across valve positions, reducing grease migration, wear, and high-pressure leaks.

An integrated maintenance opening lets coolant lines stay in service while valve-isolated components are serviced without draining the pipeline.

A movable probe, cam lock, and rinsing head enable closed hazardous-chemical transfer while preventing leaks, spills, and accidental disconnection.

Pressurized fluid channels replace shim-based pre-tensioning in a ball valve seal, cutting assembly complexity while maintaining leak-tight sealing.

A geared three-way valve assembly diverts flow between relief valves so cartridges can be replaced without shutdown or refrigerant escape.

A rotary valve with variable-depth slots enables fine low-pressure gas flow control, fast electronic response, and lubrication-free operation.

Magnetic sensing on the output shaft gives a rotary slide valve precise position feedback without extra sensor space or medium exposure.

Battery-powered magnetic sensing tracks valve shaft angle remotely, avoiding external wiring, fitting compact actuators, and detecting tampering.

Replacing hydraulic umbilicals with a hollow-core electric motor cuts subsea ball valve space, speeds actuation, and lowers maintenance costs.

A worm-gear actuator layout boosts torque in a compact valve package while keeping dual manual overrides accessible and reducing power use.

Gyro-based angular velocity sensing captures friction-driven motion patterns in rotary valves for retrofit wear diagnosis and life prediction.

Varying the housing-to-valve gap around the circumference lets coolant debris escape during rotation, cutting torque, clogging, and pressure loss.

A rotatable relief valve and diaphragm bypass structure improve flush volume and cycle timing control despite pressure variation.

A linearly actuated showerhead valve brings water pause control onto the handle, improving reach while keeping flow adjustment compact.

A non-contact rotary valve disc with worm gear actuation cuts friction, energy use, and pressure loss in battery-powered gas meters.

Solid lubricant held in bearing-surface cavities cuts valve friction and operating torque while keeping lubricant out of the process fluid.

Separating static and dynamic seals cuts plug valve operating torque while preserving a fluid-tight seal and adjustable wear compensation.

Counterdraft cavities filled with solid lubricant keep valve bearing surfaces lubricated despite fluid washout, reducing friction, wear, and torque.

A hard-soft seal split in a plug valve cuts rotary torque and friction while maintaining a fluid-tight seal on the cylinder wall.

A rotatable shell body and integrated multi-plane ports cut external plumbing, leak paths, and valve assembly complexity.

Tangential purge inlets create a vortex inside the ball valve cavity, sweeping debris to the drain and preserving operation between cycles.

Parallel channels with varied wall thickness condition valve flow to reduce hydrodynamic noise, delay cavitation, and limit erosion.

Fluid circulating through the valve body cools the electric actuator, enabling reliable flow control in hot engine environments without added cooling hardware.

A rotary spool switch combines gasoline and gas control in one assembly to simplify fuel changeover and reduce leakage and engine damage risk.

An oval ball passage increases multi-port flow capacity without enlarging the valve member, reducing pressure drop, torque, and fluid mixing.

Oval-round fastening geometry secures valve hand levers without protruding screws, reducing injury risk and simplifying mounting.

A translatable override shaft disconnects the motor but keeps the valve engaged, preserving manual fluid control during power or electronics failure.

A resin valve body uses a metal core around the bearing holes to prevent heat-driven deformation while preserving sealing and corrosion resistance.

Fluid pressure actuates an elastomeric seal and port guides to cut rotary valve torque, wear, and actuator size while maintaining sealing.

Supporting wings keep the valve stem centered to prevent biased wear and maintain reliable flow path control under pressure changes and gravity.