US 12,247,662 B2
Modular stuffing box
Adam Bradley Avey, Chicago, IL (US)
Assigned to GD ENERGY PRODUCTS, LLC, Tulsa, OK (US)
Filed by GD Energy Products, LLC, Tulsa, OK (US)
Filed on Dec. 15, 2022, as Appl. No. 18/082,191.
Prior Publication US 2024/0200656 A1, Jun. 20, 2024
Int. Cl. F16J 15/18 (2006.01)
CPC F16J 15/18 (2013.01) 20 Claims
OG exemplary drawing
 
1. A modular stuffing box configured to be coupled to a fluid end casing of a reciprocating pump, comprising:
a first section including a mounting portion engageable with an opening formed in the fluid end casing, the first section being a ring-shaped body and defining a bore therein, the first section having a first distal end and a second distal end opposite the first distal end;
a second section separate from the first section, the second section being a ring-shaped body with an inner surface defining a bore therein, the second section including one of an abrasion-resistant sleeve or an abrasion-resistant coating on the inner surface, the abrasion-resistant sleeve or coating having a higher wear resistance than the second section, the second section having a third distal end and a fourth distal end opposite the third distal end, the third distal end of the second section being placed adjacent to the second distal end of the first section;
a third section being a ring-shaped body and having an inner surface defining a bore therein, the third section having a fifth distal end and a sixth distal end opposite the fifth distal end, the fifth distal end of the third section being placed adjacent to the fourth distal end of the second section;
a fastener engageable with each of the first section, the second section, the third section, and the fluid end casing to secure the first section, the second section, and the third section to the fluid end casing such that the bores of the first section, the second section, and the third section are aligned; and
one or more packing seals located only in the bore of the second section, wherein each of the first section, the second section, and the third section is separate from and does not overlap with the others of the first section, the second section, and the third section.