Don-Nan Oversized Cage

This big Kahuna provides a larger diameter for increased fluid flow without having to alter the pump bore. The only alteration required is the use of a Don-Nan Type O Mandrel for the hold-down. Given the same pump, a standard API cage seat of 1.75" can be upgraded to a 2" seat by using the Don-Nan Oversized Cage. By increasing fluid flow, fluid turbulence is decreased minimizing gas break and all issues associated with gas. And to aid potential beat-out, internal ball guides are cut into the cage to minimize chaotic ball movement. Ask about the Don-Nan Oversized Cage.

Don-Nan One-Piece Insert Guided Cage

Of all the massive parts on the pump assembly, when the balls, seats, and cages get beat-out, pump failure is soon to follow. While a carbide insert preventing beat-out may be conventional today, the One-Piece Insert Guided Cage is unconventional. With four-pieces susceptible to breaking, the One-Piece Insert Guided Cage is four pieces inertia-welded together to add long-lasting durability to the cage and, most of all, your pump. Ask about the Don-Nan One-Piece Insert Guided Cage.

Don-Nan Heavy-walled Cage

Don-Nan is in the business of minimizing failure. So if our customers succeed, we succeed. The Don-Nan Heavy-walled Cage is a staple of durability and simplicity. Strengthen the walls and you strengthen the cage. By creating an inner diameter that holds the same API seat as a standard API cage, durability is upgraded without losing fluid production. And to aid potential beat-out, internal ball guides are cut into the cage to minimize chaotic ball movement. Ask about the Don-Nan Heavy-walled Cage.