BUTTERFLY VALVE


Meaning of BUTTERFLY VALVE in English

noun

Etymology: so called from the winglike clappers

1. : a double clack valve (as in a lift-pump piston) consisting of two semicircular clappers hinged to a cross rib

2. : a damper or throttle valve in a pipe consisting of a disk turning on a diametral axis

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.