CPC F16K 3/0227 (2013.01) [F16K 39/04 (2013.01); F16K 3/30 (2013.01)] | 17 Claims |
1. An equalization valve comprising:
a valve body defining a gate slot;
a gate defining an equalization chamber, a first equalization channel, and a second equalization channel, the equalization chamber and the first and second equalization channels defining an equalization pathway across the gate; and
an actuation stem slidable within the equalization chamber between a first chamber position, wherein the actuation stem blocks the equalization pathway, and a second chamber position, wherein the actuation stem unblocks the equalization pathway;
wherein:
the actuation stem is further slidable within the gate slot of the valve body between a first valve position, wherein the gate is seated with the valve body, and a second valve position, wherein the gate is unseated from the valve body;
the actuation stem defines a lower portion slidably engaged with the equalization chamber;
the lower portion of the actuation stem defines a stem slot;
a fastener extends axially across the equalization chamber and is slidably received through the stem slot; and
the stem slot is configured to slide relative to the fastener as the actuation stem slides between the first chamber position and the second chamber position.
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