81 Bolt Thru Isolation Ring

The Ashcroft® 81 isolation ring is mounted inline with process piping. Used for process protection of measuring instruments, the ring-design eliminates process accumulation, assuring reliable and accurate pressure readings. Ideal when continuous pressure measurement is needed.

Key Features:
  • 360° sensing flexible inner-liner; no process deadleg
  • Safe Quick Release™ (optional) enables instrument removal without loss of fill or process shutdown
  • Needle valve (optional) dampens pulsation effects
  • Retrofit end plates (optional) allows easy replacement of other manufacturer models

Process Market:

  • Water and Wastewater
  • Mining
  • Pulp and Paper


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Datasheets & Instruction Manuals


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Ashcroft is a trusted source for pressure, temperature, and test instruments around the world. Learn more about how we can help you protect your people, processes, and profits.

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