A valve opened and closed by a plate hinged at one side.
片状阀；瓣阀
Example sentencesExamples
- The divers were expected to start work tonight on installing a section of pipe and a flap valve to an existing culvert.
- Its only moving parts are a spring-loaded ‘clack’ valve and a non-return flap valve.
- There the nozzle moves a flapper valve that seals the system out of the way.
- We have done some work in Malton by installing flap valves into the drainage system and these have had an effect in keeping water levels down slightly.
- The valve assembly includes one or more flapper valves that are able to pass a ball through at a minimum flow rate of fluid, enabling the ball to be used to operate the disconnect device.