Globe valve having a dismountable seat for rapid maintenance
US4773442A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 1987 |
| Grant date | Sep 27, 1988 |
| Priority date | — |
| Expiry date | Oct 16, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7668
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A globe valve comprising: a control rod (70) which is movable in translation along a valve axis (XX'), handle means (90) for controlling movements of said rod in translation, a disk (74) fixed to one end of said rod; a body (12) having an inlet passage (14) and an outlet passage (16) therethrough for passing a liquid, said passages giving access to a cavity (18) which is extended via a cylindrical orifice (22) disposed along said valve axis in order to receive said rod; a cage (36) lodged inside said cavity and within which said disk is capable of being moved by axial displacement of said rod; packing (46) surrounding a portion of said rod and disposed within said cylindrical orifice; a seat (28) which is removable from said body for cooperating with said disk in a closure position, said seat having a first face defining a sealing bearing surface for cooperating with said disk and a first annular thrust bearing orifice, and a second face defining a second annular thrust bearing surface; means for defining a third annular thrust bearing surface symmetrically about said axis and disposed in said cavity between the openings to said passages and at least substantially fixed relative to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.