Freudenberg Oil & Gas, LLC

Anton Marincic

Steven Williams

Zvonko Milanovic

A rotary coupling includes an annular outer section which has a female end, a threaded portion, and a Z-ring relief. A connector pipe has a connection end, a shoulder, and a seal end. A Z-ring is housed within the Z-ring relief and packing seals are housed within a packing chamber; and a retainer ring is threadably received into the threaded portion of the outer section. The retainer ring receives compression screws there-through, wherein in the engaged position the compression screws urge a packing end of the Z-ring longitudinally against packing seals thereby compressing the packing seals into the packing chamber creating a seal. The compression screws are movable between an engaged and disengaged position in order that in the disengaged position the compression pressure against the Z-ring and packing seals is released by backing off the compression screws without disassembly of the rotary coupling.

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Beamsville, CA, United States of America

Anton Marincic