- 专利标题: Double ported control valves for low flow rate applications
-
申请号: US17579438申请日: 2022-01-19
-
公开(公告)号: US11719345B1公开(公告)日: 2023-08-08
- 发明人: David L. Hostetter , Benjamin J. Harris
- 申请人: FISHER CONTROLS INTERNATIONAL LLC
- 申请人地址: US IA Marshalltown
- 专利权人: FISHER CONTROLS INTERNATIONAL LLC
- 当前专利权人: FISHER CONTROLS INTERNATIONAL LLC
- 当前专利权人地址: US IA Marshalltown
- 代理机构: Marshall, Gerstein & Borun LLP
- 主分类号: F16K1/44
- IPC分类号: F16K1/44 ; F16K1/54
摘要:
An example method includes moving a first portion of a control element and a second portion of the control element coupled to the first portion from a closed position to an intermediate position. In the closed position, the first portion being seated against a first valve seat thereby preventing flow through a first orifice and the second portion being seated against a second valve seat thereby preventing flow through a second orifice. In the intermediate position, flow through the first orifice is deterred and flow through the second orifice is permitted. The method includes moving the first portion and the second portion from the intermediate position to an open position. In the open position, the first portion being spaced from the first valve seat thereby permitting flow through the first orifice and the second portion being spaced from the second valve seat thereby permitting flow through the second orifice.
公开/授权文献
信息查询