| CPC F16L 19/0218 (2013.01) [F16L 19/025 (2013.01)] | 18 Claims |

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1. A hammer union comprising:
a male pipe member;
a union nut placed over the male pipe member,
a female pipe member, the female pipe member having a sealing pocket, wherein the sealing pocket includes a first portion, a vertical portion, a base, and a recessed groove; and
a sealing ring captured between the male pipe member and the female pipe member, wherein the sealing ring engages the sealing pocket of the female pipe member at each of the first portion, the vertical portion, the base, and the recessed groove, wherein prior to assembly the sealing ring has a cross-sectional area having a lower end and an upper end, wherein the lower end has a first angled lower corner, wherein the first angled lower corner is positioned adjacent to the recessed groove and the upper end has a first angled upper corner adjacent the first portion of the sealing pocket, wherein the first angled upper corner is an acute angled corner.
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