JAMES R DANIELS
Engineers in Kissel Hill, PA
License number
Pennsylvania PE042422E
Category
Engineers
Type
Professional Engineer
Address
Address
Kissel Hill, PA 17543
Professional information
Diaphragm Valve With Means For Adjustably Setting The Maxium Valve Opening
US Patent:
5823509, Oct 20, 1998
Filed:
Jul 11, 1997
Appl. No.:
8/892260
Inventors:
James R. Daniels - Lititz PA
Assignee:
Amcast Industrial Corporation - Dayton OH
International Classification:
F16K 3100
US Classification:
2513352
Abstract:
A diaphragm valve has an adjustment device for precisely setting maximum valve lift. A bushing threaded into the bonnet clamping the diaphragm within the valve body forms at its inward end an axially facing engagement surface which is engaged by an outwardly, axially facing engagement surface formed by a shoulder on the valve stem. The bushing can be threaded in or out without disassembling the entire valve to adjust the maximum lift to the precise setting desired. The bushing is then locked in place such as by a thread adhesive. Alternatively, the bushing can be threaded on the valve stem and be provided with a radial flange forming the axially facing engagement surface which engages a shoulder on the bonnet.