CPC F16K 17/06 (2013.01) [F16K 1/42 (2013.01); F16K 1/465 (2013.01); F16K 15/063 (2013.01); F16K 17/04 (2013.01); F21V 31/005 (2013.01); F21V 31/03 (2013.01); Y10T 137/7932 (2015.04)] | 16 Claims |
1. A pressure relief valve (PRV) for underwater high pressure use, comprising:
a plunger assembly having a one-piece conical sealing surface including a thin, pliant area for deflecting at high pressures to aid in sealing, with one or more grooves formed along the conical sealing surface;
one or more 0-rings disposed in the one or more grooves formed along the conical sealing surface; and
a high pressure housing assembly including a housing seating surface against which the conical sealing surface of the plunger assembly and the one or more 0-rings seats.
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