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Class Information
Number: 137/625.36
Name: Fluid handling > Systems > Multi-way valve unit > Dividing into parallel flow paths with recombining > Reciprocating > Spool > Unequal heads
Description: Devices having port controllers of unequal size generally to partially balance the valve.

Patents under this class:

Patent Number Title Of Patent Date Issued
7000635 Double valve Feb. 21, 2006
6401753 Shut-off valve Jun. 11, 2002
5388613 Valve with pressure compensation Feb. 14, 1995
4079886 Double ported expansion valve Mar. 21, 1978

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