Check Valves TRIZ Cases
- Flapper Valve Sealing Structure for High-Pressure Wear Resistance
A rigid-core flapper with a stop ring limits coating deformation and shields the pivot pin from abrasive wear under high pressure.
- Split Micro-Valve Structure for Adjustable Flow and Backflow Sealing
A split valve body and compressible elastic member enable adjustable microfluid flow, easy part replacement, and reliable backflow sealing.
- Leash Valve Assembly for Sealed Breast Pump Container Connection
A leashed duckbill or umbrella valve keeps vacuum sealing while making breast pump containers easier to attach, detach, and detect.
- Flapper Check Valve With Resilient Band for Sealing and Impact Damping
A single elastomeric band biases multiple flappers closed and absorbs impact, improving sealing while simplifying valve construction.
- Dual-Seat Steam Valve Sealing Under Thermal Expansion
Axially displaceable valve parts and a biasing member help both steam valve seats seal despite thermal expansion, reducing leakage.
- Inflation Valve Locking Assembly With Transverse Retention
A transverse valve housing and supply connector replace threaded retention, simplifying assembly and improving gloved operation underwater.
- Mechanical Pressure Relief Valve for Quiet Breast Pump Control
A pressure-responsive valve replaces noisy solenoids to relieve and intake pressure in diaphragm breast pumps with simpler, tunable control.
- Segmented Check Valve Structure for Hinge Pin Failure Tolerance
Radial arms split the valve into smaller flapper sections, so flow continues after one hinge pin fails while preserving fast opening.
- Check Valve Stop Pin with Flexible Tongues for Impact Damping
Flexible cantilevered tongues in a check valve stop pin absorb flapper impact, reducing stress concentrations and extending service life.
- Annular Barrier Valve Design for Low-Pressure Zone Sealing
A pressure-differential valve expands and seals an annular barrier in low-pressure zones, preventing blowouts and enabling cementing.
- Check Valve Hinge Post Structure for Flapper Impact Damping
Serpentine hinge posts and a cushioned stop arrangement help check valve flappers open together while reducing impact stress and weight.
- Pressure-Responsive Spray Nozzle for Proportional Liquid Dosing
A spring-disc valve varies flow resistance with liquid pressure, enabling more proportional spray volume control with lower pressure increase.
- One-Way Degassing Valve Structure With Flexible Disk Retainers
Flexible valve disk retainers enable a unitary central core, cutting mould complexity, maintenance, and defects in one-way degassing valves.
- Modular Sprinkler Valve Assembly Without Piping Manifolds
A single-piece sprinkler valve body integrates check, drain, and flow detection functions to cut manifold footprint, cost, and assembly complexity.
- Variable Lay-Length Backflow Assembly for Retrofit Flexibility
Adjustable sleeves and rotatable valve connections let backflow assemblies fit existing piping, absorb movement, and keep certification.
- Infusion Connector Valve Geometry for Leak-Free Reconnection
A cup-like valve with an O-shaped inner contour improves infusion reconnection sealing while limiting deformation, wear, and contamination.
- Relief Valve Lift Control for Stable High-Pressure Pump Operation
A separate regulating member fixes valve lift while spring preload is adjusted independently, preventing damage and keeping relief pressure stable.