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Class Information
Number: 137/243.2
Name: Fluid handling > With cleaner, lubrication added to fluid or liquid sealing at valve interface > Cleaning or steam sterilizing > Mechanical cleaning > Valve grinding motion of valve on seat > Spring pressed
Description: Devices provided with a spring which permits regrinding of the valve head on its seat.










Patents under this class:

Patent Number Title Of Patent Date Issued
6957659 Sliding disk valve for pneumatic conveyance of abrasive material Oct. 25, 2005
6845783 Sliding disk valve for pneumatic conveyance of abrasive material Jan. 25, 2005
4627461 Self cleaning valve Dec. 9, 1986
4338961 Valve for handling hot caustic alumina solution with provision for grinding Jul. 13, 1982
4177825 Self-grinding valve mechanism Dec. 11, 1979











 
 
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