Cement Retainers
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Trinity Model A Ball Check Cement Retainer


The Model "A Ball Check Cement Retainers combine outstanding features with design simplicity. It has a compact design and small O.D. for fast running. The Model "A Ball Check Cement Retainer is economical, dependable and unsurpassed by any similar retainer on the market.
There are no springs, latches or sliding valves to complicate the operation. A simple ball-check acts as a one-way valve to prevent back flow of fluids from the formation up the well.

The internal surface of the retainer is finished to receive a seal nipple for cementing. The ball-check valve is located at the bottom. The retainer sustains high pressure and temperatures.


  • Electric wireline set
  • Drillable
  • Cast iron construction
  • One piece slips - hardened to depth of wicker only
  • Sets in any grade tubing
  • Form-fitting metal back-ups prevent rubber extrusion
  • For temporary or permanent service
  • Ratcheting lock ring holds setting force


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