check valve
One-way flow gate
A check valve is a valve that allows fluid to flow in only one direction, automatically closing to prevent backflow.
It's essential in plumbing, hydraulic systems, and anywhere reverse flow could cause damage or contamination: The check valve keeps sewage from backing up into the house.
Moving in one direction
- one-wayPermitting single direction travel
- fluidSubstance that flows
- pressureForce upon contact
- downstreamAlong the current's path
upstream · gravity · hydraulic · pneumatic · media · velocity · restriction · bypass
Physical structure, living thing
- housingDwellings or protective covering
- sealAuthentication stamp or mark
- gasketMechanical leak preventer
- O-ringCircular sealing element
bonnet · clapper · stem · retainer · spring-loaded · elastomer · metal-to-metal · flange
Water and waste infrastructure
- pipingTubes for fluid transport
- fittingsAttached functional components
- couplingJoint between systems
- orientationPosition relative to surroundings
vertical · horizontal · inline · HVAC · irrigation · compressor · aquarium · boiler
Recoiling metal spiral
- ballSpherical plaything or gala
- discFlat circular object
- swingSuspended recreational seat
- flapperTwenties unconventional young woman
hinge · seat · poppet · diaphragm · duckbill · lift · wafer · inline
Liquid reversing course
- preventionStopping something before occurring
- siphonageFluid transfer via tube
- cross-connectionImproper pipe linkage
- contaminationIntroduction of impurities
Copper-zinc metal mixture
- stainless-steelRust-resistant iron alloy
- PVCChlorinated plastic abbreviation
- bronzeCopper-tin alloy
- cast-ironHard molded alloy
plastic · rubber · PTFE · silicone · polypropylene
unidirectional
Moving in one direction
downstream · upstream · gravity · hydraulic · pneumatic · media · velocity · restriction · bypass
body
Physical structure, living thing
- housingDwellings or protective covering
- sealAuthentication stamp or mark
- gasketMechanical leak preventer
O-ring · bonnet · clapper · stem · retainer · spring-loaded · elastomer · metal-to-metal · flange · threaded
plumbing
Water and waste infrastructure
orientation · vertical · horizontal · inline · HVAC · irrigation · compressor · aquarium · boiler · pool
spring
Recoiling metal spiral
flapper · hinge · seat · poppet · diaphragm · duckbill · lift · wafer · inline · actuation
backflow
Liquid reversing course
- preventionStopping something before occurring
- siphonageFluid transfer via tube
- cross-connectionImproper pipe linkage
contamination · potable · reflux · return · sewage · drainage · airgap
brass
Copper-zinc metal mixture
- stainless-steelRust-resistant iron alloy
- PVCChlorinated plastic abbreviation
- bronzeCopper-tin alloy
cast-iron · plastic · rubber · PTFE · silicone · polypropylene
- water systemswater pipes, water pipe, water storage, water line, irrigation ditches
- blockersblocker, ad blocker, barrier, popup blocker, beta blocker
- plumbingpipes, valves, fittings, faucets, drains
- air compressor partstank, motor, piston, regulator, gauge
- control devicesregulator, thermostat, controller, switch, relay
- flood protectionflood barriers, flood walls, levee, dike, sandbags