clack-valve
21Ball valve — Valve Valve, n. [L. valva the leaf, fold, or valve of a door: cf. F. valve.] [1913 Webster] 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. [1913 Webster] Swift through the valves the visionary fair… …
22Check valve — Valve Valve, n. [L. valva the leaf, fold, or valve of a door: cf. F. valve.] [1913 Webster] 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. [1913 Webster] Swift through the valves the visionary fair… …
23Double-beat valve — Valve Valve, n. [L. valva the leaf, fold, or valve of a door: cf. F. valve.] [1913 Webster] 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. [1913 Webster] Swift through the valves the visionary fair… …
24Equilibrium valve — Valve Valve, n. [L. valva the leaf, fold, or valve of a door: cf. F. valve.] [1913 Webster] 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. [1913 Webster] Swift through the valves the visionary fair… …
25clack — I. verb Etymology: Middle English, of imitative origin Date: 13th century intransitive verb 1. chatter, prattle 2. to make an abrupt striking sound or series of sounds 3. of fowl cackle, cluck transitive verb …
26clapper valve — noun a simple valve with a hinge on one side; allows fluid to flow in only one direction • Syn: ↑clack valve, ↑clack • Hypernyms: ↑valve * * * noun : clack valve …
27Check valve — Tilting disc inconel check valve …
28butterfly valve — but′terfly valve n. 1) mac a clack valve having two flaps with a common hinge 2) mac a valve, as the throttle valve in a carburetor, that swings about a central axis across its face • Etymology: 1860–65 …
29Flap valve — Flap Flap, n. [OE. flappe, flap, blow, bly flap; cf. D. flap, and E. flap, v.] Anything broad and limber that hangs loose, or that is attached by one side or end and is easily moved; as, the flap of a garment. [1913 Webster] A cartilaginous flap… …
30butterfly valve — 1. a clack valve having two flaps with a common hinge. 2. a valve, as the throttle valve in a carburetor, that swings about a central axis across its face. [1860 65] * * * …
