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check-valve
check-valve n.
Brit. /ˈtʃɛkvalv/
, U.S. /ˈtʃɛkˌvælv/
ΘΚΠ
society > occupation and work > equipment > conveyor > [noun] > conduit, channel, or tube > pipe > for water > valve of
frost valve1865
check-valvea1877
a1877 E. H. Knight Pract. Dict. Mech. I. Check-valve.
1930 Engineering 14 Nov. 627/2 Connected in the feed range immediately before the boiler check valves.
1963 Gloss. Mining Terms (B.S.I.) iv. 9 Reflux valve (check valve, deprecated; retaining valve, deprecated), an automatic non-return valve which opens freely to permit fluid to pass in one direction but closes under its own weight when motion ceases or when the fluid commences to flow in a reverse direction.
check-valve
check-valve n.
Brit. 
/ˈtʃɛkvalv/
, /ˈtʃɛkvalv/U.S. /ˈtʃɛkˌvælv/
a valve to prevent backward flow (spec. of water in a supply pipe)./ˈtʃɛkˌvælv/<
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