Diaphragm Valves TRIZ Cases

An elastic diaphragm lifts a rod and flow-stopping piece to shut a gas passage during pressure spikes, cutting valve complexity and cost.

Rotating guide rollers keep flexible tubing centered and spaced from housing walls, reducing wear, leaks, and multi-size valve redesigns.

Rigid valve bodies and jackets encapsulate flexible unreinforced tubing to handle pressure while cutting hold-up volume and tubing cost.

Enclosed compensation venting shields the pressure reducer from contamination while enabling toolless retrofitting and stable fluid pressure output.

Selective pinching of a looped flexible conduit enables compact reversible branch flow with lower holdup volume and easier sterile tubing replacement.

Parallel qPCR quantitation sets STR PCR cycle count without pre-normalization, reducing forensic DNA processing time and instrument complexity.

An elastic piston and bending cover stabilize control gas pressure and protect flow uniformity during semiconductor substrate processing.

A spherical stem tip and larger-radius recess let the diaphragm piece self-align, maintaining valve seat sealing with lower thrust force.

Interlocking contours block actuator rotation during assembly, enabling secure tool-free valve rod coupling and a uniform interface for varied valve bodies.

A nested securing mechanism lets diaphragm valves mount in tight spaces while speeding assembly, release, and rotational positioning.

A flexible tube is pinched to stop flow while isolating the valve body from the product, preserving aseptic filling without continuous sterilization.

A bearing member between the actuator stem and button cuts impact wear and heat in rapidly cycled diaphragm valves.

A pressing-piece valve switch built into the shower outlet enables direct water control without reaching for a separate wall switch, reducing scalding risk.

An inward-expanding flow control element raises fluid velocity during low production to reduce stagnation and pipeline corrosion.

A permanent magnet linear motor and spring-controlled closure improve dosing precision, reduce wear, and remove manual valve adjustment.

A buoyant sealing member and hydrophobic filter vent air from an infusion line while sealing at low fluid level to block air embolism.

A detachable piezoelectric actuator assembly keeps the diaphragm valve compact while preserving flow rate and sealed flow path maintenance.

A separated drive and actuation chamber valve uses a non-rotatable diaphragm connection to cut torsional stress, improve sealing, and extend diaphragm life.

Flow-through passages and nested orifice ridges cut valve dead space while preserving leak-tight shut-off and proportional gas control.

A single-plate piston layout with alignment pins prevents assembly shifts that cause binding, leakage, and unstable gas flow in GC valves.

A pliable polygonal flow opening maintains constant outflow from near-zero to 6 bar, avoiding clogging and secondary orifices.

A deformable tube and sphere create a simple sealed biopsy syringe valve that stabilizes airflow and helps protect samples from damage.

Air-actuated collapse of an inner tube blocks retrograde flow and pooling while keeping drainage pressure from reaching the patient.

A one-piece snap-in securing element locks a screwed valve housing with low assembly torque while preventing unintentional loosening.

A snap-in securing element with an angled clamping surface locks the valve housing at a defined end position while easing opening and assembly.

A rod-coupled elastic tube structure reduces stress concentration and sticking in pinch valves, helping maintain reliable opening and closing.

Tilting and inverting the fluid control valve lets bubbles escape by gravity, improving trace dispensing accuracy without vibration.

Electrically operated control points replace bulky mechanical trim, enabling remote sprinkler testing, monitoring, and maintenance.

A diaphragm and convex indenter let APD systems measure positive and negative line pressure accurately without fluid contact or sensor contamination.

A deformable plug and annular interposition element remove the valve body, cutting weight, easing installation, and reducing cavitation.

A movable barrier and negative-pressure chamber automate wound fluid dosing in one disposable cartridge, cutting setup clutter and infection risk.

A deformable plug installed between pipe sections replaces the valve body, reducing valve weight, pressure drop, and cavitation.

A dual-magnet bistable layout and diaphragm shut-off stabilize magnetic routes, suppress water hammer, and simplify solenoid valve assembly.

A plastic tensioning element in the diaphragm clamping region ages with the diaphragm, giving a defined end stop for precise re-tensioning and leak-safe sealing.

A nickel-based valve seat protects the diaphragm resin coating from oxygen and water vapor, enabling higher-temperature vaporized gas control.

Dual overlapping discharge passages balance pressure loss and smooth gas flow, reducing membrane vibration, noise, and discharge instability.

A deformable bag-filling duct narrows after filling so suction removes suspended powder while limiting residue, product loss, and cleanup.

Buffered chamber pressure lets an MFC report reliable inlet pressure when the upstream valve closes, supporting in situ verification and stable flow control.

Hydrophobic or hydrophilic valve coatings and one-way flow control curb e-liquid leakage and condensate droplets in aerosol-generating devices.

A control switch from position mode to zero-thrust closing uses spring force to avoid motor overload and sealing failure from valve seat expansion.

A downward-sloped lever contact surface keeps the piezo input centered, improving displacement repeatability and reducing valve leakage.

Membrane valves and direct fluid channels simplify multi-column chromatography by avoiding reconnection delays and reducing stagnant flow areas.

Continuous circulation and valve-controlled flow prevent liquid stagnation and particle generation without dummy dispensing, improving photo-process productivity.

An elastic multi-part pressure fitting gently deforms the diaphragm to linearize flow response and extend valve service life.

A pivoting locking lever and de-pinching feature let flexible tubing be clamped, reopened, and set for adjustable fluid flow.

Rigid valve bodies and jackets encapsulate disposable unreinforced tubing to handle pressurized fluids with more flexibility and lower hold-up volume.

An implantable rotor pump uses periodic kinking valves to move lymph continuously, reducing swelling and the burden of manual drainage.

A vertically aligned sealing web concentrates compression on the diaphragm, achieving tight sealing with lower axial force and easier assembly.

A hot-caulked enlarged recess secures an RFID transponder in a thin valve diaphragm while keeping the surface flush for readability and cleanability.

Inlet pressure sensing lets the controller vary valve open time, keeping water dispensing accurate despite wide pressure changes.