Plug Valves TRIZ Cases

Symmetrical stem design balances thrust loads in high-pressure fluid systems, enabling stable operation torque without complex bearings.

A nested pig assembly maintains subsea pipeline piggability across varying diameters.

Stabilizing member carries lapping tool weight while adjustable force device controls vertical pressure to eliminate horizontal misalignment forces.

A valve assembly uses a pressure equalizing line and flow control cage to balance fluid pressure across the main valve member.

Deforming a metal tube into conical portions eliminates welding damage to seals while reducing component count.

A thin film bio valve device uses permanent magnets to actuate fluid channels without generating heat.

Interchangeable drain-proof units resolve sealing reliability trade-offs by allowing modular replacement of worn components without full valve disassembly.

Merging the guide and seal sleeves reduces assembly complexity while maintaining sealing effectiveness.

Enlarged valve stem portion prevents radial blowout, eliminating bolt fatigue from actuator forces.

A sleeve with an annular space filled with curable material secures a valve cartridge within a pipeline conduit.

Bayonet sleeve secures removable waterway through lower inlet, enabling maintenance without countertop removal.

Lateral ladders on the valve seat engage with a cap flange to prevent pull-out under high pressure, resolving leakage risks.

An extraction-based design removes inner ribs from the sealing member to eliminate catching forces, lowering peak torque for compact valve actuation.

Dual seat surfaces in a ball valve maintain bidirectional sealing integrity under high temperature and pressure conditions.

Rotating orifices in a manual gas valve regulate fluid flow for different heating values, eliminating complex tool requirements during conversion.

Segmented modular stops distribute torque loads to prevent yielding, allowing easy replacement without discarding the entire valve body.

A split valve uses pneumatic vacuum pressure to hermetically engage spherical valve bodies for secure port communication.

Segmented flow regulators in the movable member prevent ice blockage, reducing energy required for system restart.

A top entry plastic ball valve design simplifies assembly by using a separable valve cover for direct sealing ring mounting.

A two-portion apertured ball valve displaces a sealing portion axially to engage the valve seat.

Segmented guide pillars release pressure early, preventing the slidable sleeve from blocking the outlet during normal operation.

Segmented seal finger uses line pressure for sealing, reducing leakage while simplifying assembly and maintenance.

Boost pistons apply radial forces to sealing elements, ensuring bi-directional gas-tight seals under elevated pressures.

An anti-twist device with interlocking annular cams prevents seal displacement and damage during incorrect mounting of liquid containers.

A double piston trunnion ball valve uses bias springs to apply opposing forces against the ball element for enhanced sealing integrity.

A ball valve with a single access port directs pressurized cleaning agents through an internal secondary passage.

Compressed gas drives a piston assembly in a biased translational actuation system, replacing manual labor and resolving productivity contradictions.

A plug valve uses a metal annular boss to constrain elastomeric seal deformation within the recess.

A remotely actuatable valve in the tubing hanger enables hydraulic well desuspension without a dual bore riser.

A fluid control valve seal ring integrates backup functions to obstruct flow and prevent leakage.

Rear-mounted volume control lever eliminates two-handed operation by allowing thumb access to adjust water flow while holding the handle.

Depression regions on the valve control rod increase bearing gap spacing to reduce shear stress in pasty coating materials.

Non-uniform valve seat geometry and tapered spool ends minimize clearance gaps, reducing actuation forces and preventing molten resin scorching.

Bidirectional fluid pressure actuates concentric pistons against a truncated sphere cap, maintaining seal integrity under varying flow directions.

An asymmetric operating lever indicates open status while minimizing snagging risks for patients with limited dexterity.

A reservoir uses compressed air to pressurize and transport inoculant via a jet pump into flowing fluid.

Segmented flow passages in a rotary valve enable independent fuel control for turbine combustion chambers, preventing single-point failures.

A metallic valve seat uses a double lip design to create a direct metal seal against the intercept member.

A compact multifunction valve uses radiused inlet and outlet features to expand effective surface area for fluid flow.

Elastic arm mediates contact force to maintain seal pressure, preventing leakage from spherical core wear.