Plug Valves TRIZ Cases

A one-sided set screw retainer preloads the hydraulic pump valve cover to prevent unseating, leakage, and accidental screw removal.

Gravimetric dosing, separated fluid paths, and disposable transfer sets improve low-volume accuracy, uptime, and aseptic compounding.

Elastic anchoring and static valve-body sealing prevent chamber mixing in multi-way valves while enabling precise, low-cost fluid distribution.

An offset ball valve with dual passages and flow meters enables precise row-unit liquid dosing across wide flow ranges in agricultural fields.

A bent shaft lets stacked gears intersect and sit closer together, shrinking actuator volume and freeing space for added components.

A ramped slot and pin convert limited rotation into valve-seat travel, cutting wear, effort, and assembly burden in right-angle valves.

A threaded core, rotating liquid valve, and sealing rings make e-cigarette atomizers easier to clean, refill, and repair without leakage.

A slideable coupling sleeve locks the stem nut under vibration and rapid cycling while still allowing adjustment to reduce leakage and seal wear.

Injection-molded PTFE sleeve encapsulates a removable valve cartridge to improve chemical resistance, low-friction sealing, and serviceability.

A geared pair of three-way valves redirects flow between relief valves, allowing cartridge replacement without shutdown or leak-prone diversion.

A retained locking element secures the actuation pin without a removable locking pin, improving reliable valve opening and re-locking.

Staged pressure drops through a multi-port trim reduce cavitation, erosion, corrosion, and hydrate risk while simplifying valve maintenance.

Circumferentially varied housing gaps let coolant debris escape during valve rotation, reducing malfunction risk, torque load, and pressure loss.

A split ferrule and threaded nut secure polymer pipes without crimping, maintaining leak-tight joints despite diameter and roundness variation.

A sequenced lift-and-rotate valve core cuts friction and torque while maintaining reliable sealing through position-limited opening and closure.

Non-metallic sleeves and gaskets isolate dissimilar metal pipes in waterworks couplings to prevent galvanic corrosion and lead leaching.

Alternating stiffness zones in a rotary coolant valve seal maintain sealing contact despite particle contamination, reducing leakage over time.

Ultrasonic transducers and acoustic reflectors built into a ball valve improve low-flow accuracy while reducing meter footprint.

Optical sensing inside the valve housing improves valve position detection and failure monitoring while reducing electrical components in combustible fuel systems.

A ball valve routes exhaust between direct and recirculation paths to cut muffler noise without the back pressure that reduces engine output.

A rotatable shaft-integrated capacity valve improves gerotor transmission efficiency by reducing leakage, noise, and vibration.

A rotary flow control gate with shaped protrusions enables precise flow modulation in a compact valve while limiting pressure drop at low supply pressure.

A dual-diaphragm valve lock confirms vacuum before releasing the sealing member, preventing premature opening and air leaks.

A slotted ring balances seat pressure in a non-relieving ball valve to maintain double isolation and avoid thermal over-pressurization damage.

A self-actuating ball valve opens on connection and seals on disconnection to limit pressure surges, leakage, and pumping energy in liquid cooling.

Grooves in the valve passage and seat manage debris in clearance gaps, preserving valve seat alignment and leak-tight cooling water shutoff.

A fixed ball valve with limited ball movement cuts actuator torque and seat wear in low-pressure residential water shutoff service.

A rotatable metering element inside the pillar post tunes cutting fluid flow near the cutter wheel for more precise glass scoring.

Threaded worm drives and geared lock rings let one operator retract valve seats from the top entry, simplifying service and reducing leak paths.

A monolithic flow tube integrates ultrasonic sensors and a shut-off valve to reduce leaks, simplify installation, and keep flow readings reliable.

By relocating sealing to the valve dish bottom, this three-way valve cuts rotation friction, prevents shaft deviation, and enables smoother flow control.

Pressure-responsive breaker modules isolate a leaking gas line while keeping unaffected appliances supplied for easier fault detection and service.

Curved valve-body surfaces linearize port opening changes, improving hot and cold heat-medium mixing accuracy for precise temperature control.

Handle extensions and a removable stem let this gasketless rotary C-gate vacuum valve be cleaned by hand while preserving a reliable seal.

Oblique channel patterns in a cylindrical flow body divide pressure drop to curb cavitation, vibration, turbulence, and noise in valves and pipes.

A cam-driven intake piston retracts residual fluid from the ball valve passage before closure, protecting the seal and preventing blockage.

Toroidal and spherical seat contours stabilize ball valve sealing pressure, reduce galling and wear, and extend cycle life under pressure.

A trunnion-mounted ball and elastomeric band let the setting tool pass through a frac plug, then automatically return the valve to one-way sealing.

A hard plastic sealing bead bonded to an elastic seal body maintains valve tightness through temperature swings, pressure changes, and lower material use.

Aligned rotary through-channels route brittle radionuclide targets without plunger damage, cutting contamination risk and footprint.

Adjustable clamping with force sensing keeps a cooling water valve sealed during thermal changes, preventing overflow and media mixing.

A cam-locking valve assembly forces pressure-line closure before tank-line closure, reducing hydraulic pressure spikes and seal wear.

An embedded metal member in a plastic valve body prevents distortion at pipe joints while keeping molding simpler and lower cost.

A passive magnetic lock rotates a blocking element to trap the cannula tip, reducing needlestick risk and body fluid leakage.

A battery-powered sealed actuator adds wireless remote control and retrofit mounting to ball valves without external power or manual access.

Using the same resin on the valve and sliding ring limits thermal expansion mismatch, preserving sealing and reducing drive friction.

Remote water-driven grease cartridges and manifold valves lubricate high-pressure plug valves safely while reducing downtime and contamination.

A 270° rotating valve member shifts from a narrow slot to full bore, delivering predictable linear flow control without sacrificing maximum flow.

A protrusion-mounted seal contacts the spherical valve body to maintain sealing despite displacement while reducing wear and seal deterioration.

An axially shiftable shaft and coupling lock a tank car outlet valve handle until deliberate rotation is needed, preventing accidental opening.