Lift Valve TRIZ Cases

A multi-phase iron-base powder with molybdenum-rich hard phases improves wear resistance and heat conductivity in sintered sliding parts.

Curved groove surfaces in the valve member expand opening area while suppressing vortices and pressure loss in an eccentric butterfly valve.

Unequal-width sealing surfaces and a back-up ring help a fluoroplastic butterfly valve resist heat and pressure while lowering torque and wear.

An S-shaped composite valve seat and shaped retainer improve bidirectional sealing under pressure while reducing wear, creep, and valve body stress.

Arcuate outer projections keep the butterfly valve seat ring stable during assembly and operation while preserving uniform compression and sealing.

A free-form asymmetric sealing surface lets the seal separate uniformly, cutting friction and lowering butterfly valve actuation torque.

A free-moving seal uses fluid pressure to improve centric butterfly valve sealing while reducing torque, wear, and seal stress.

A fivefold asymmetric sealing surface lets the seal break contact at minimal rotation, cutting shaft-area wear, friction, and actuation torque.

A locking-screw sensor module adds wireless access to valve position, pressure, and temperature data for earlier leak and seal-wear detection.

A sloped annular seal lets twin butterfly discs shut off uni- or bi-directional flow in a smaller DIB/DBB valve assembly.

Segmented obturating portions move in 3D to achieve pressure-balanced, low-torque sealing and full-bore pipe flow with minimal wear.

Replacing rubber rings with PTFE or UHMWPE disks featuring microstructures reduces manufacturing costs while improving sealing durability.

A welded butterfly valve body supports a removable seat section, eliminating pipeline disassembly and jack support during component servicing.

A cup-like housing with a beveled annular lip secures components in bores using an automatic center punch.

Segmented valve seat groove with inclined surface anchors sealing gasket, preventing deformation and leakage while simplifying machining.

Curved valve head profiles guide fluid flow through duct openings, resolving the trade-off between precise low-rate control and operational progressiveness.

Identical sealing rings in a double seat valve use rotational positioning to resolve manufacturing complexity while maintaining reliable sealing performance.

Laterally movable sealing members self-align with valve seats to resolve misalignment issues, preventing fluid leakage and erosion at high pressures.

Dual bonnet assembly integrates safety shut-off into control valve body, eliminating separate piping rerouting and reducing installation time.

Inclined ring lips convert fluid pressure into radial sealing force, reducing torque and wear for frequent operations.

Offset rotation axis and asymmetric sinusoidal configuration reduce peak aerodynamic torque, enabling smaller actuators in aircraft air distribution systems.

Relocating the minimum flow area downstream via a choke transfer trim protects plug head interfaces from erosive pressure drops.

Radially deflecting tube friction fit over plate flange reduces wear and leakage while maintaining high flow rates.

A radial sealing butterfly valve uses a flexible metal wall to isolate vacuum pressure without elastomer degradation.

A wireless monitoring system converts linear valve stem displacement into angular orientation for precise position tracking.

Symmetric drain-proof ring in triple eccentric valve applies tangent force to seat, eliminating normal force and easing manufacturing alignment.

Segmented hole design in valve stem allows independent component replacement without on-site machining, maintaining full engagement force.

Tapered pins replace complex couplings to provide a simple, secure, and zero-backlash connection between the drive shaft and valve disk.

Segmented parallel and series flaps with independent actuators control gas evacuation, preventing single-point failures that compromise balloon trajectory.

A floating seal gasket with a concave outer surface creates a double-contact seal and an intermediate leakage chamber.

Passive visual indicator on actuator shaft eliminates external openings and seals, reducing manufacturing complexity in hazardous environments.

A rigid seat stiffener prevents radial expansion of an elastomeric valve seat, maintaining seal integrity under repeated loading cycles.

Oblique pressing of the sealing element reduces flow resistance in the open position.

Centrosymmetric ring seal with cambered surface simplifies tri-offset eccentric valve assembly by eliminating directional alignment requirements.

Elastic element between adjusting device and valve core enables flexible relative movement for precise sealing.

Integral composite fiber seat members eliminate corroded gasket removal, allowing rapid valve replacement in tank trailer systems.

A bag-in-box valve uses a perpendicular handle lock to secure the valve member against the seat for reliable fluid control.

Movable support body adjusts seal contact force, reducing leakage without increasing required breakout torque.

Arc-like recesses on valve disk hubs deflect flow to reduce wake space eddies, lowering activation moments while maintaining structural strength.

Annular ribs on bonded seats prevent shifting under pressure, ensuring seal tightness and reliability.

An annular void around the valve disc accepts injected sealant to prevent leakage when primary seat wear compromises closure integrity.

Segmented shell segments create positive fits with valve and drive rods, absorbing high axial forces while maintaining rotational decoupling in lifting valves.

A valve apparatus uses a bactericidal fluid reservoir to form a germ barrier within the housing.

Curved seal surfaces guide flow control members to compress graphite laminate layers, maintaining ANSI Class VI shutoff across temperature cycles.

A high pressure valve seat seal nested in a shut-off element recess with a collar projection protects the seal from direct fluid flow wear.

Disk valve wall depression creates equal percentage flow characteristic, resolving low-rate control precision trade-offs against device complexity.

A composite rotary valve body embeds a metal structure within an ABS plastic housing to enhance structural integrity and circularity.