Plug Valves TRIZ Cases

Transverse grooves and a spring lock the endoscope plug valve open for sterilization, improving cleaning access without plug loss.

An axially movable pressure abutment compresses the seal radially, improving control valve sealing under pressure and temperature extremes.

A freewheel-coupled second rotary slide lets one servomotor set multiple flow paths independently while keeping the valve structure compact.

A hydraulic retrofit links multiple quarter-turn plug valves to one stroke, enabling remote subsea or rural actuation while preserving manual operation.

A movable plug in a rotary valve controls flow direction and mixing ratios in dialysis systems while reducing valve count and preparation errors.

A concentric labyrinth around the rotary valve bearing traps abrasive particles in the flow path, reducing wear and extending valve life.

A gear motor with reduction gearing enables progressive valve opening, cutting leakage, clogging, noise, and power use in vapor flow control.

A rotating non-sliding valve prevents seat damage and internal leaks when controlling metallurgical silicon powder in trichlorosilane production.

A tapered valve core and chamber cut rotation force and wear while maintaining outlet sealing and precise alignment in cooling circuits.

A single-piece housing and rotatable shell route fluid across perpendicular port planes, cutting external plumbing, leak paths, and assembly complexity.

A pressure-driven seat and bushing keep metal sealing surfaces engaged to prevent leaks and reduce seal maintenance in harsh oilfield service.

A thermal-sprayed metal barrier protects valve seat retention grooves from corrosion without narrowing bolt-head clearance or frequent recoating.

A guide shell separates pre-tensioning force paths so a rotary vehicle valve achieves high impermeability with lower actuating force and wider tolerances.

Multiple compression springs directly urge the ball closed, maintaining subsea valve shutoff during hydraulic interruptions and high pressure.

A replaceable seal carrier shifts erosion wear from the valve body bore to low-cost inserts, cutting leakage, repair time, and downtime.

A replaceable sleeve and groove-mounted seal shift erosion wear off the fluid end body, cutting leakage risk, repair cost, and downtime.

Floating seat carriers cut preload, stem torque, and seat creep while maintaining upstream and downstream sealing and secure lockout.

Staged passages and a plenum condition ball valve flow across travel positions to reduce cavitation, aerodynamic noise, and valve damage.

Well pressure replaces hydraulic control lines in this subsurface safety valve, improving deepwater reliability and fail-safe closure.

Adjacent bearings shield the seal in a floating valve seat, reducing galling, abrasive wear, and maintenance in severe service valves.

A one-piece insert and modular ball cartridge cut welding and assembly parts while improving internal pressure resistance.

A hard-plastic bead bonded to a deformable seal keeps fluid valves tight through temperature swings while reducing material use and cost.

Controlled actuator pulses slightly rotate a ball valve to prevent sticking, lower breakaway torque, and avoid fluid stagnation.

A sliding bleed pin vents trapped air during servicing and closes under coolant pressure to prevent leakage and protect system efficiency.

A rotating shaft valve varies RPM, orifice size, and duty cycle to meter gas into a fixed expansion chamber with fast, thermally stable operation.

A telescoping supply assembly with O-ring sealing adapts to wall thickness and pipe depth, easing installation and protecting the water supply pipe.

Nested throats and expansion chambers create staged pressure drops that cut cavitation and noise while preserving valve flow volume.

A bypass jet rotates a winged valve plug under fluid pressure to deliver a preset volume with fewer parts, less leakage, and consistent shutoff.

A one-piece resilient gasket unfolds helically for simpler valve assembly while maintaining tight sealing across sphere and cage designs.

Pivoting body portions and an occluding core reduce spillage and contamination during repeated medical fluid line disconnects.

A D-shaped thrust bearing keeps rotary valve bearings seated under combined thrust and torsional loads, preventing cracking and seal failure.

Stacked adjustable trim plates and tungsten carbide bushings reduce flow velocity and impingement erosion in high-pressure ball valves.

Movable adjustors let engineers set the dome valve seal gap without disassembly, improving accuracy, maintenance speed, and sealing ring life.

An angled seal and seat geometry retracts contact until final closure, reducing ball valve wear without larger housings or added mechanisms.

Offset fluid channels in a rotary cooling multi-valve expand inlet-outlet combinations while cutting valve count, cost, and installation space.

A dielectric insert between the drive shaft and ball shaft blocks electrical conduction while preserving torque transfer and manual backup operation.

A tee-shaped isolation valve with bleeder drains lets plumbers isolate, depressurize, and drain a water hammer arrestor for service without full shutdown.

An axially movable conical diverter opens a defined flushing gap and drain path, enabling reliable CIP cleaning without losing sealing stability.

Integrated cooling channels and shields dissipate recombination heat in vacuum isolation valves, preserving sealing integrity under reactive gases.

A cylindrical valve gate enables direct installation in a single-piece valve body while maintaining non-zero minimum flow to limit cooling of lower-temperature heat sources.

An offset rotary valve core creates a C-shaped flow space to increase water flow, simplify inlet-outlet layouts, and maintain tight sealing.

Spaced curved walls split valve flow into controlled channels that cut turbulence and audible noise across rotary ball valve positions.

A conformable seal, retainer, and biasing device let an ECS isolation valve switch outlets with low leakage and precise airflow distribution.

An erosion-resistant cage with dual flow passages reduces valve trim wear, noise, and vibration in dirty high-pressure service.

A recessed inner circumferential section retains the spring during cap insertion, preventing misassembly and seal interference in a control valve.

Inclined arcuate channels and magnetic coupling cut pressure loss, leakage, and assembly complexity in EV thermal fluid routing.

A barrel valve and Venturi discharge pipe give predictable airflow control for filament handling while reducing fiber damage, wear, and waste.

Integrating the planetary ring gear into the valve body cuts parts, backlash, size, and mass for precise, reliable ball valve actuation.

A monolithic deformed valve key uses orbital forming to prevent removal, cutting locking parts, assembly time, and valve cost.

Recessed liquid-holding regions on the rotor create a lubricating film that preserves zero-flow sealing while cutting sliding torque and actuator power.