Screw valve

(redirected from screw valves)
Related to screw valves: ball valve
a stop valve which is opened or closed by a screw.

See also: Screw

References in periodicals archive ?
Two tenders for the supply of (a) flavors and fragrances, also of mono & di propylene glycol, also (b) atomizers and screw valves for perfumery bottles.
Six tenders for the supply of (a) glass containers, (b) plastic caps & packs, (c) perfumery chemicals & raw talc powder, (d) laminated tubes for shaving cream, (e) carton boxes & separators & (f) screw valves & atomizers for the perfumery bottles.