Plug Valves TRIZ Cases

Separate seals and a deformable intermediate piece compensate tolerances and stress to maintain reliable sealing in rotatable fluid valves.

An elastic seal with opposed radial flanges and a converging sleeve improves axial rigidity and sealing under pressure differences.

Tapered seal bodies and interlocked valves improve high-pressure sealing, cut operating torque, reduce solvent use, and limit wear.

Multiple apertures and angular sealing states let one coolant ball valve switch several flow paths, expanding heating and cooling control.

A shaped rotary control element alternates seal compression and relief to cut valve operating force while extending seal life.

A segmented suction packing seal replaces O-rings to resist high-pressure cyclic loading, reduce wear, and extend plunger pump service life.

Precision-machined bronze or stainless bushings improve valve stem sealing while avoiding rust and heavy machining of bonnet and stuffing box parts.

A welded stepped shoe installed downstream of the throttling ball restrains errant flow, cuts valve noise, and avoids fastener loosening.

A simplified rotary valve stem meters bi-directional fluid flow with less wear and hysteresis, improving long-term flow accuracy.

A curved variable-thickness spring locks a ball valve at full open or closed positions to prevent pressure spikes without operator holding.

Axial displacement and rotation open defined flushing gaps so a sealed conical diverter valve can be CIP cleaned and dried without drain openings.

A deformable polymeric valve seat and ring reduce operating torque in large-flow valves while filling gaps to improve leak sealing.

A mounted powered actuator applies valve-stem torque on DSSVs, reducing hazardous manual wrench use under high-pressure conditions.

A buffer portion between a tangential external flow path and port cuts rotary valve resistance while preserving smooth flow switching.

A motor-driven airflow diverter routes pneumatic signals to selected channels, enabling adaptive massage pressure without valve complexity.

A sealing projection with a travel-limiting stop preserves valve sealing under thermal expansion and pressure changes while reducing seal wear.

Conical-spherical metal sealing with elastic preload prevents wear-driven leaks and keeps all well supply lines sealed during testing.

Radial outlet ports of different sizes let a rotary mechanical valve deliver repeatable preset flow rates without complex frustoconical geometry.

Integrating multiple faucet pipes with one joint unit resists torsion, prevents leakage, and simplifies valve seat installation.

Complementary coupling portions lock the rotating outlet during intake, simplifying hose engagement while reducing valve complexity and cost.

A bore valve inside a multi-bore ball enables more flow states in one assembly, cutting valve count, pressure loss, and response delay.

A selective transmission gear stops force transfer at the valve stopper, removing sensor and PCB dependence while preventing over-torque damage.

Multiple sealing regions and a static sealing layout prevent frictional erosion, reduce leakage, and extend electronic valve life.

A retained seal lip and groove in a ball valve seat prevent O-ring dislodgment under pressure and during ball movement, maintaining sealing contact.

A rotating shutoff element, service chamber, and scraper seal reduce sensor stress, seal wear, and adhesion in retractable measurement armatures.

A porous diffuser paired with a restrictor cuts shock noise and resists clogging in dirty fluid valve trims under high pressure drop.

An internal rotating plug shuts off gas before the hose is detached, simplifying removal while preventing accidental outlet leakage.

A hard embedded member supports an elastic seal to simplify regulator valve assembly, enable automation, and maintain stable flow-channel sealing.

Differential pressure keeps metal seats engaged on both sides of the valve, reducing leaks, sticking, and seal failure in corrosive high-pressure service.

A protrusion-recess rotary valve limits turbine bypass leakage while easing manufacturing tolerances and engine integration.

A rotary-valve bypass air intake reduces fiber fly clogging and unwanted suction while keeping dirt separation and fiber transport uniform.

Rotatable couplings let multiple hoses attach at better angles without stopping flow, reducing kinking and improving spigot clearance.

A resin-encased metal core supports the bearing hole from outside, preventing heat deformation while preserving corrosion resistance and sealing.

Dual seal pockets, elastomeric rings, and anti-extrusion rings keep sand and fluid out of valve seats, improving sealing life in high-pressure service.

A plug and housing create a tortuous flow path that stages pressure drop to curb cavitation, vibration, noise, and velocity fluctuations.

A variable-radius plug valve cuts sealing friction and rotary torque while maintaining a fluid-tight seal and enabling five-way flow switching.

A three-way valve switches process-fluid pressure behind the upstream seat to keep a tight seal when closed and cut ball-seat friction during rotation.

A shiftable sleeve, diverter seat, and spring-driven rotation close the ball valve reliably to form a well barrier and restrict fluid flow.

A flexible membrane creates expansion space for trapped water as it freezes, protecting fluid handling assemblies without continuous heating.

A guided stem recess, lubrication port, and removable seat ring reduce wear and enable inline maintenance in rising stem ball valves.

Tool-engaging plug recesses enable safe servovalve filter screen removal and replacement without damaging the press-fitted port.

Separate manifold channels and dedicated outlet lines improve small-volume compounding accuracy while preventing mixing and transfer path errors.

A radially inward seal blocks hydrogen from threaded regions, cutting stress buildup, fatigue, and leakage while preserving air tightness.

Stored torsional spring energy and solenoid re-latching move a failed actuated valve to a preset safe position without continuous power.

A two-phase stem coupling lets the valve member separate from the seat during repositioning, reducing wear while saving space.

A rotating regulator and cone let one valve adapt to different gas types while keeping burner flow settings stable and repeatable.

An eccentric rotor approaches the bypass port to improve exhaust-gas sealing while limiting leakage, wear, and heat-related sticking.

A threaded fitting, dual ring nuts, and a mounting tool secure branch adapters on flexible irrigation pipes without hand tightening.

A grooved fluid end sealing sleeve shifts erosion wear to replaceable plugs, extending service life and reducing repair downtime.

Helical ribs in valve cage openings create fluid swirl at the outlet, cutting turbulence-driven noise without sacrificing flow control.