Plug Valves TRIZ Cases

A selective gear transmission blocks drive at valve end stops, avoiding sensor instability, PCB complexity, and over-torque damage.

Axially offset seal grooves let fluid end seals be relocated onto fresh surfaces as wear occurs, reducing leaks and housing replacement.

Arc-shaped adjustment holes let the sensor base align precisely with the valve shaft, improving rotational position detection during valve assembly.

A single rotary valve links multiple EV thermal fluid paths inside one module, reducing hoses, leaks, assembly effort, and pressure loss.

A dual valve-seat shower body lets users swap thermostatic and switching control positions without disrupting hot-cold routing or constant temperature output.

A mass member uses vehicle inertia to rotate a lubrication valve, cutting solenoid cost while improving oil supply to transmissions or reducers.

Replaceable seal carriers and a cam-guided rotary layout cut waste port wear and leakage while preserving hydraulic efficiency in pool filter backwash valves.

Precision-machined corrosion-resistant bushings replace full bore machining in bonnet and stuffing box assemblies, improving sealing and rust resistance.

An asymmetric seal and seat let a ball valve avoid most contact during rotation, cutting seal wear without added retraction hardware.

Dual-passage ball valve control and flow meters widen planter row flow range while improving liquid application accuracy.

Cartridge gear engagement rotates a valve shaft to open flow, while a torsion spring closes it automatically for sealing and easy replacement.

Sequentially switched electromagnets rotate shaft magnets without contact, boosting valve torque while reducing wear and leakage in high-pressure lines.

A membrane-integrated strain wave gear transmits valve rotation in LH2 service while avoiding dynamic seals and minimizing hydrogen leakage.

An integrated valve-and-shaft layout cuts component count and axial size in vehicle cooling water flow control while maintaining smooth rotation.

A modular connector platform lets one rotary globe valve fit different actuators, while a biased ball segment maintains a fluid-tight seal.

Closed-seat O-rings and separate weldable flanges prevent seal overheating, cut leaks, and simplify ball valve replacement.

Two rotatable valve members and a solenoid lock let one compact assembly switch between two-way and three-way flow paths after installation.

An elliptical plug with a convex dome improves fluid distribution, cuts turbulence, and raises valve flow coefficient for precise control.

Separate micro and macro fluid paths improve small-volume dosing accuracy, reduce downtime, and maintain aseptic pharmaceutical compounding.

A split-body rotary C-gate valve enables tool-free disassembly for cleaning while preserving a gasketless vacuum seal in food processing.

An exterior-accessible plumbing valve lets homeowners isolate faulty fixtures without removing permanent structures or cutting water to working ones.

A spring and eccentric gear close the vehicle cooling valve during power loss, cutting standby power while preventing unwanted coolant circulation.

A Wolfrom gear inside the coolant flow path enables precise rotary valve adjustment while eliminating dynamic seals and saving space.

A slideable retention sleeve locks the valve stem nut under vibration yet disengages for adjustment, reducing leakage and seal wear.

A rotating housing and split shaft sleeve let shower water enter from the middle side and switch compactly between upward and downward outlets.

A worm wheel, linear guide, and stationary seal cut valve friction in smart gas meters, lowering battery drain and extending service life.

Electrically actuated ball valves let each spray nozzle be controlled independently, improving agro-chemical distribution without relying on system pressure.

Leak grooves in the seal ring equalize pressure at the valve ball, cutting post-fire operating torque without causing fluid leakage.

Strategically split purge ports clean both the valve passage and cavity during operation, blocking debris entry with less purge fluid.

A dissimilar metal port ring is fused during casting to avoid shrink-fit stress risers, improve sealing, and protect severe-service valve ports.

A local sprinkler service valve isolates one head for maintenance, keeping other branch-line irrigation devices operating without main valve shutdown.

Channeled trim inside the valve flow path controls fluid expansion, cutting noise and easing assembly by reducing clearances.

A seal ridge cuts gasket contact area in a segmented valve, lowering friction and torque while extending ball valve sealing life.

A rotating distributor element and integrated cleaning nozzles route particulate pharmaceutical solids without disassembly, residue carryover, or seal contamination.

Curved toroidal and concave valve seats improve sealing under pressure, cut contact stress and galling, and lower run torque.

A linked needle valve vents trapped downstream pressure when closed, preventing leakage and extending ball valve life up to 600 PSI.

Balanced pressure areas and equal-diameter seal rings cut friction and pressure locking in high-pressure fracturing plug valves.

A rotatable, vertically movable plug with sloped surfaces and drainage channels enables sanitary valve cleaning in place without disassembly or downtime.

Rotating multiple internal passageways gives a ball valve pressure attenuation at opening, then higher flow, solving noise control in rotary valves.

Curved pressing surfaces and deformation-guided contact help a sealing member maintain leak-tight sealing at low temperature and high pressure.

Injected dielectric resin between drive and driven shafts blocks fault conduction while still transmitting torque in wet ball valve assemblies.

Through-holes are formed in a flat strip seal before bending, simplifying rotor valve seal manufacturing while lowering sliding friction.

A threaded fitting, dual ring nuts, and a tightening tool secure branch adapters on flexible irrigation pipes under strong water pressure.

A rotatable ball assembly in a tee-shaped drain valve simplifies installation and supports horizontal or vertical plumbing layouts.

A threaded helical pathway enables fine, repeatable liquid flow adjustment, helping maintain accurate beverage and medical dosing under variable inlet pressure.

A multilayer valve coating combines high hardness and low friction to resist wear, corrosion, and high-pressure liquid leakage.

A pressure-energized multi-element stem seal removes packing gland adjustments while preventing stem ejection in subsea ball valves.

A buffer portion between the port and external flow path cuts rotary valve resistance while preserving flow area in angled multi-port layouts.

A segmented suction packing seal replaces O-rings to resist high pressure, reduce valve housing abrasion, and extend plunger pump service life.

Radial lugs and an elastic sealing member cut valve turbulence, pressure loss, vibration, and leaks in vehicle fluid circuits.