Plug Valves TRIZ Cases

Nitrided titanium seating surfaces and fused annular bands reduce spalling and wear while preserving ball valve sealing in severe service.

Timed air pulses only during positive pressure intervals raise acoustic input power while cutting air use, pressure drop, and wear.

Axially offset seal grooves let fluid end seals shift onto fresh sealing surfaces, reducing leakage and delaying housing replacement.

A servo-controlled valve adjusts hot air by web speed, pressure, and temperature to keep packaging web edge heating uniform during speed changes.

A compensating pressure port offsets bellows stress, prevents process fluid escape, and enables leak detection through pressure or flow monitoring.

A pivoting valve body adjusts the minimum flow cross-section for faster pressure setting with lower bypass complexity and tolerance sensitivity.

A rotatable grooved valve replaces motors and linkages to deliver precise low-flow adjustment at lower manufacturing cost.

A tapered circumferential flow channel enables precise low-flow adjustment without motors, cutting parts count and manufacturing cost.

A dielectric connector between drive and driven shafts maintains torque transfer while blocking electrical conduction in motor-driven ball valves.

Localized barrel thickening and a partition improve plug-body sealing at up to 100 bar while keeping rotary torque manageable.

Injection-molded thermoplastic replaces machined brass to deliver lead-free rough-in valve connections with broader adapter compatibility.

A staggered port layout cuts valve cavity size, fluid resistance, and torque while preserving multi-way flow switching in thermal management.

Protrusion-and-recess sealing in a rotary bypass valve cuts tolerance demands while directing exhaust gas to turbine or aftertreatment.

A shaft-end buffer limits axial play of the magnetic ring and shaft, improving Hall-based valve position accuracy, stability, and EMI resistance.

A rotatable valve core switches among one-to-one, split, merge, and merge-split flow paths to simplify versatile fluid circulation.

A removable bonnet nut lets quarter-turn stop valves be repaired in place without disconnecting pipe connections or opening walls.

A limiting frame and connecting seat redirect fluid pressure away from the transmission mechanism, cutting friction loss and extending valve life.

A grid-pattern seal with more through-hole columns than opening columns prevents backside leakage while preserving rotary switching flexibility.

A multi-port rotary disc valve consolidates EV coolant paths into one low-torque assembly, cutting valve count, energy use, and complexity.

A nested two-part valve core enables complex coolant routing with lower manufacturing cost while maintaining sealing and leak resistance.

Cam surfaces force a rotary wellhead valve plug into metal-to-metal sealing while shear blades close on wireline or tubing under pressure.

A positioning pin and D-shaped shaft prevent selector and lockout valve misassembly, keeping indicators aligned and flow paths correct.

Conical stator and adapter geometry self-centers the rotary valve, reducing lateral stress, wear, fluid carryover, and maintenance.

A conical clamping adapter retrofits standard actuators to manual stopcocks, enabling precise intermediate flow control without valve replacement.

A conical clamp adapter lets standard actuators automate existing manual shut-off valves without replacement, cutting retrofit cost and assembly effort.

Cam-guided spool motion combines axial sealing and rotation in a multiport valve, improving port switching precision with fewer gaskets.

Multiple wedge-shaped polymer sealing rings create interlocking barriers that improve helium tightness in compact actuator rod gaps.

Intersecting bores enable 1/8-turn valve actuation for faster, more precise inline fluid control and timed liquid application during planting.

An asymmetric through-opening lets a rotary shut-off nozzle keep high flow area while reducing size, leakage, wear, and actuator demand.

Multiple sealing members and a sealing medium block valve stem leakage under high pressure while reducing friction and seal wear.

A floating valve element uses fluid pressure to self-align the nozzle flow path, reducing wear, turbulence, heating, and flow error.

Compliant thermoplastic or thermoset segments absorb thermal expansion mismatch around a ceramic valve seat, cutting stress, axial load, and wear.

Curved gas grooves, tuned L/D ratio, and elastic pressing cut pressure drop and flow fluctuation in a compact rotary cone valve.

Offset disc and stem geometry clears the valve centerline, boosting Cv and cutting pressure drop while preserving shutoff operation.

A triple-offset valve moves the disc and stem out of the centerline to cut pressure drop, raise Cv, and keep the flow path unobstructed.

Sequentially connecting purifying units through one valve assembly reduces dead volume, buffer use, and chromatography run time.

A rotary hydraulic valve replaces slow linear actuation in dropper seatposts, cutting weight and complexity while speeding saddle height changes.

A sealed working fluid drives a piston valve to open only when injected CO2 or H2 is in the desired high-density phase.

A dual-thread retainer and anti-rotation fork secure a railroad tank car acid ball valve while enabling leak detection without disassembly.

A sectional rotary valve routes multiple fluids independently through nested inlet channels, reducing pressure drop and leakage risk.

Preset pressure and adjustable throttling tame gas bottle flow for bicycle tire inflation, preventing bursts without a separate gauge.

A staged tortuous flow element helps rotary ball valves manage pressure drop, improve turndown, and attenuate noise during incremental opening.

A strain wave gear built into the sealing membrane transmits valve rotation while maintaining a gas-tight LH2 and hydrogen seal.

A pressure-activated cantilever slot lets fluid pressure counter ball distortion, preserving valve-seat sealing under high differential pressure.

Projecting support portions shorten the weld support span in an L-shaped valve flow channel, improving ultrasonic welding and hose-mount rigidity.

A turbine rotor integrated with a spherical-segment valve recovers throttling losses while improving flow control accuracy in ducts.

A vertical rotating valve body with crossed drive axes separates flow passages by height, enabling cartridge exchange without leakage.

A rotating magnetic field drives the valve stem through a sealed chamber, reducing wear, leakage, and torque limits in high-pressure service.

A spring-biased seat insert and angled wall maintain dual sealing interfaces in cryogenic ball valves to limit leakage from thermal shrinkage.

A replaceable curved-plate cartridge adds dual flow paths and staged pressure reduction to cut valve noise, lower Fd, and reduce cavitation.