Plug Valves TRIZ Cases

A spring-biased live-load injector keeps valve stem packing pressurized to prevent leaks and emissions without valve shutdown or modification.

A peripheral stem and belly-pocket disc layout keeps the valve flow path clear, reducing pressure drop while increasing flow coefficient.

Graphite-infused PTFE seal bodies and tapered interfaces improve manifold valve sealing, cut torque, and reduce solvent use during flushing.

A removable insert and control valve contain test pressure and enable controlled water discharge during building pipe leak testing.

A sliding retainer and bolt setup lets fluid end plugs be installed and removed with hand tools, reducing high-torque hazards and maintenance cost.

Fluid pressure deforms a sleeve and drives an incompressible medium to press the seal against the valve member, limiting leakage at high pressure.

A removable annular body saver isolates erosion and seal-interface wear in high-pressure valves, extending body life and simplifying repair.

An integrated discharge duct in the alarm valve housing enables direct alarm testing, cutting external piping, installation time, and cost.

A bypass channel and hidden regulation element let a shut-off valve maintain adjustable minimum flow when closed without open-state load losses.

An integrated check valve in flexible disposable dental tubing blocks backflow, reduces cross-contamination, and simplifies sterilization.

A compression spring and washer keep the gasket in stable contact with the valve ball, reducing leakage, wear, and assembly adjustment time.

Sequential dual springs boost closure force to clear debris and secure a positive valve seal without an oversized single-spring actuator.

A movable regulation member locks the rotary shaft in the closed state to stop vibration-driven valve rotation and fluid leakage.

A body-mounted seal in a fluid end assembly redirects erosion wear to replaceable plugs, cutting leakage repairs, cost, and downtime.

Ultrasonic level sensing and beacon-triggered valve control help prevent used cooking oil theft while improving collection scheduling.

A locally reduced valve-body gap suppresses leakage at full closure while preserving smooth rotation and precise temperature control.

A direct-stem coupling lets one electric actuator retrofit many existing ball valves, cutting replacement cost, space, and installation effort.

A single molded housing seats non-parallel valve parts and connection passages to improve assembly, flow control, and package size.

A one-piece annular seal with a low-friction ring cuts leak paths, simplifies ball valve assembly, and maintains tight sealing under pressure.

A monolithic housing combines metering and valve actuation to enable watertight, battery-powered flow control in compact utility meters.

A monolithic watertight housing combines flow metering and valve actuation to cut power use, save space, and support remote utility control.

Radial lug coupling replaces bolted bonnet fasteners, cutting valve maintenance time, leak points, and corrosion risk.

An aperture in a flow control seal redirects initial high-pressure valve flow to prevent unintended impingement and reduce ball valve wear.

Tangential purge inlets create a vortex in the ball valve cavity, flushing debris even when process flow exceeds purge flow.

Preloaded hydraulic chambers and springs clamp a plug against both seats, improving high-pressure valve sealing under sand, chemicals, and frac forces.

Pulsed flow into a resonance chamber generates cavitation at useful scale while limiting valve damage in effluent treatment and biomass processing.

Two floating pistons balance boost force above and below the ball valve to limit distortion and preserve metal-to-metal seal integrity.

Projecting portions and a connecting section shorten support-to-weld distance, stabilizing ultrasonic welding and stiffening the valve channel joint.

Axially retracting and rotating a conical diverter valve creates a defined rinsing gap for thorough CIP cleaning and drying without housing drains.

Integrated strain and seat sensors help detect leaks, seat misalignment, and pig position in industrial ball valves before damage or downtime.

Side inlets let a sillcock mount directly to a wall, eliminate elbow or tee fittings, and allow individual shutoff for easier service.

A cup screw and ball-expansion tool secure valve settings against tampering while avoiding the axial thrust needed by standard screws.

Low-silicon copper alloys enable piping components to support soldering, brazing, welding, and press joining while meeting water-system needs.

A rotating welding tool joins ball valve housing parts in one central seam, reducing heat damage, crevice corrosion, and production time.

A channeled spherical mixer directs flow toward a central volume to improve water-crude oil mixing while lowering shear imbalance and pressure drop.

A flow diverter raises coolant velocity at the expansion element, improving heat transfer and avoiding delayed valve activation during engine warm-up.

A cavity behind the ball valve stopper face redistributes hydraulic pressure to limit seal gaps and prevent leakage under high pressure.

Independent wedge-shaped regulating teeth create a star-shaped throttling zone that cuts hydraulic loss, speeds actuation, and reduces wear.

A thermally sprayed metal barrier protects the valve seat retention groove from corrosion without narrowing bolt space or requiring thick epoxy.

By routing water through sealed valve core seats instead of the base, this faucet simplifies assembly, improves stability, and lowers material cost.

Flexible double seats, elastic preload, and a bent conduit keep a UF6 tank valve leaktight under impact and crystal projection.

A side-access ball valve with a nested check valve cuts wet-pipe sprinkler footprint and allows inspection without draining the system.

A built-in relief valve lockout lets sprinkler systems be tested and drained without extra piping, reducing installation time and complexity.

A single rotating plug valve combines cryogenic flow regulation and purge control to cut mass, space, and hardware complexity.

A non-uniform drive key lets misaligned rotary ball valves rotate smoothly, reducing hysteresis, seal compression errors, and leakage.

An incombustible, heat-absorbing valve ring redirects oxygen leaks and flames away from cylinder parts to limit ignition and fire spread.

By limiting contact seals to the main passage and using non-contact auxiliary seals, this valve cuts rotation friction while controlling leakage.

A variable exhaust vent in a respiratory mask adjusts with breathing phase to improve CO2 washout while limiting pressure loss, noise, and turbulence.

A split retainer lets compact ball valves assemble with linear locking instead of seal-scrubbing rotation, reducing wear and preserving sealing.

A gapped metal seal and flexible supports let the seal follow valve element movement, preserving sealing contact beyond the axial direction.