check valves

One-way flow gates

Check valves are one-way valves that allow fluid or gas to flow in only one direction, automatically closing to prevent backflow.

They're essential in plumbing, pumps, and piping systems where reverse flow could cause damage or contamination: The check valve keeps sewage from backing up into the house.

Most operate passively through pressure differentials rather than manual controls.

Related

non-return · pipelines · pressure relief · oil pipelines · hydraulic systems · safety mechanisms · shutoff · drainage · disc · ball · fluid dynamics · pipe · sewage · flow · gravity · swing · flap · plumbing

Categories
Opposites
flow directionality

check valvesmanifolds

Multi-branched fluid channels

flow control function

check valvescontrol valves

Devices regulating fluid flow

Family

check, valve, checkout, checker, checkpoint, checkerboard, double-check, cross-check, checkroom

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G