Isolators

ESP equalizers — Engineered for Oilfield Production

Tri‑Alta supplies a complete line of 300, 400, and 500 series ESP isolators. Isolators are designed to manage internal pressure changes and maintain fluid isolation within the motor section, supporting equipment reliability and long service life.

Design and Operating Function

Tri‑Alta isolators are designed to manage internal fluid movement and pressure variations encountered during normal ESP operation. Materials and internal components are selected to perform across a range of temperatures, pressures, and fluid conditions, with emphasis on durability, sealing performance, and compatibility with surrounding components.

ESP isolator protector caps — Tri-Alta Oilfield Industries
ESP isolator protector caps — Tri-Alta Oilfield Industries

Application Considerations

Selection is guided by fluid composition, operating temperature, pressure conditions, and system configuration. Proper alignment between application requirements and component design supports reliable operation and extended equipment life.

Specialized configurations are available for:

  • High-temperature applications using Aflas elastomers
  • High-horsepower applications using various tandem isolator configurations and high-strength shafts
  • High H₂S service to protect motors and insulating oil from contamination

Integration Within the ESP System

Isolators are integrated in coordination with motors, pumps, gas separators, sensors, and other ESP components. Attention is given to mechanical fit, operating limits, and overall system balance to support stable operation throughout the ESP string.

Support and Configuration Guidance

Tri‑Alta provides application engineering support for isolator selection and system integration. This includes review of well conditions and coordination with other ESP components to support system integrity. 

Rod pump couplings and thread protectors — Tri-Alta Oilfield Industries