Valve seat device adapted for use in a non-return valve
Реферат: 1376112 Valves A SCHULE 15 Jan 1973 [21 Aug 1972] 2068/73 Heading F2V A valve seat device comprises a frusto-conical helix of wire 1 supported on the outside by a longitudinal spacer or spacers 7 preferably electric welded to the wire. More than one wire helix may be used and the wire is preferably of circular cross-section. At the ends of the helix the wires may be in contact. A flange 9 may be provided to facilitate mounting in a pipe-line. When used in a non-return valve the resilient closure member 6, which may have a reinforcement 8 at the edge, is anchored to the apex of the helix by means of a screw which passes through the helix in an axial direction.
Improvements in or relating to valves, such as non-return valves and safety valves
Номер патента: GB1045864A. Автор: . Владелец: Gustavsbergs Fabriker AB. Дата публикации: 1966-10-19.