Plug Valves TRIZ Cases

A spring-loaded shutter and check-valve plug isolate pipeline flow during maintenance, reducing backflow, leakage, and contamination risk.

A pressure-assisted screw-sleeve actuator removes valve dead zones, extends stroke, and cuts thread friction and wear.

Valve opening and flow data reveal early pressure deficiency and leaks without extra pressure sensors, cutting cost and maintenance.

A hollow braced ball element improves valve seat conformity, cutting sealing torque and friction while preserving strength in corrosive, abrasive service.

Separate inner and outer seal pockets keep fluid and particulates out of valve seats, cutting erosion, drag, and repair errors in high-pressure service.

Leaked fluid is redirected to press valve port members, stabilizing valve body position and lowering driving torque for precise flow control.

A one-piece snap-in handle, ball, and catch keeps the seal positioned during insertion, cutting ball valve assembly time and labor.

A hard, low-friction valve coating resists wear, corrosion, and high-pressure liquid leakage in harsh oil and gas service.

A differential gear override lets the valve be turned independently when the actuator jams or fails, preserving fluid flow control.

Connected U-shaped inner packing keeps the seal attached during valve casing assembly while preserving enclosed space and sealing integrity.

A rotating ball valve in float equipment holds wellbore pressure and prevents cement backflow for more reliable cementing isolation.

Thermal-sprayed metal coating protects a butterfly valve seat groove from corrosion while preserving groove space for bolt installation.

Pressure-differential diaphragms keep a valve sealing member locked until vacuum is present, preventing premature opening and air leaks.

Limiting loops, indicators, and locking sleeves constrain stop-valve cores within 90° to simplify operation, leak testing, and replacement.

A partitioned buffer groove shields the sealing block from water impact, equalizes pressure, and maintains tight valve sealing as wear occurs.

Integrated body and plug drainage channels let this full-flow sanitary valve clean in place without disassembly, avoiding trapped fluid.

A dissolvable ball section restores wellbore fluid communication without milling, while retaining pressure strength for normal valve sealing.

A bypass channel and cylindrical valve gate simplify one-piece valve assembly while maintaining minimum coolant flow to lower-temperature heat sources.

A pressure-differential seat keeps metal sealing surfaces engaged in open and closed positions, improving high-pressure sealing and maintenance.

A radially inward compressed seal blocks high-pressure hydrogen from threaded regions, preserving air tightness and reducing fatigue stress.

A crank-linked rotary and axial trim design combines isolation and control in one valve to improve flow precision, tight shutoff, and maintenance.

A spring-fastened conical tap keeps a secure fluid seal while allowing easy disassembly for cleaning, disinfection, and part replacement.

A pull-operated switch blade replaces rotary outlet control in four-way irrigation, making flow adjustment easier and outlet states clearer.

A compact rotary FCCU valve improves catalyst throttling, cuts wear, and removes hydraulic power units to simplify maintenance.

A stepper motor and microcontroller turn a ball valve into precise flow, pressure, and temperature control without wear-prone diaphragms or needles.

A rotary centre segment lets the probe assembly be removed for service while keeping the process sealed and reducing leakage and probe wear.

Oblique channel patterns in a cylindrical flow control body dissipate pressure fluctuations to reduce cavitation, vibration, and noise.

Multi-axis SMA actuation, heat sinking, and sensor feedback turn binary valves into faster, more precise gas and liquid flow control.

A compliant air gate seal and retainer switch airflow between air cycle machines while limiting leakage in aircraft environmental control systems.

A ductile bonded interface between inner and outer tungsten carbide cage members arrests cracks and improves choke valve trim life.

Disposable flexible dental tubing with an integrated check valve prevents backflow and cross-contamination without separate sterilization steps.

A secondary flow path beneath the plug continuously flushes sediment from the valve cavity, reducing disassembly and failure risk.

A nested hub insert and hub member improve sealing and enable clean-in-place filling without plate-against-plate maintenance issues.

A spring-loaded shutter and check-valve plug automatically isolate downstream fluid, reducing maintenance steps, leakage, and contamination risk.

Convex cage ends and limit blocks restore roller position, preventing cage-thread contact, axial offset, and higher operating torque.

Axially offset seal grooves let fluid end seals shift onto non-eroded surfaces, cutting leakage and delaying housing replacement.

Combined SPE-DPE seats and a movable intermediate element maintain sealing integrity under high pressure and temperature without added springs.

Body-mounted seals extend beyond conduits to shift erosion from the fluid end body to replaceable inserts and retaining nuts, reducing repair downtime.