CPC F16K 1/46 (2013.01) [F16K 1/385 (2013.01)] | 15 Claims |
1. An apparatus, comprising:
a valve configured to seal against a valve seat, the valve comprising:
a tapered sealing surface joined to a side surface by a recessed surface, the recessed surface forming a recess within the valve, the recessed surface comprising:
a plurality of straight-line segments, the plurality of straight-line segments comprising: L1, L2, L3, L4, and L5; and
a plurality of radius segments, the plurality of radius segments comprising: R1, R2, R3, R4, and R5;
in which L1 is positioned intermediate the tapered sealing surface and R1;
in which L2 is positioned intermediate R1 and R2;
in which L3 is positioned intermediate R2 and R3;
in which L4 is positioned intermediate R3 and R4; and
in which L5 is positioned intermediate R4 and R5; and
in which R5 is positioned intermediate L5 and an upper surface of the valve; and
a seal installed within the recess and engaging the plurality of straight-line segments and the plurality of radius segments of the recessed surface; in which at least a portion of the tapered sealing surface and at least a portion of the seal are configured to seal against the valve seat.
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