81 Bolt Thru Isolation Ring

81 Bolt Thru Isolation Ring

The Ashcroft® 81 isolation ring or isolation device is mounted inline with process piping.
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

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

360° sensing flexible inner-liner; no process deadleg

Markets & Applications

Pulp and Paper

Water and Wastewater

Mining

  • Specifications
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Wetted Parts Material

Flexible Liner: Buna, PTFE, EPDM, Natural rubber, and Viton®

End Plate: Carbon steel, 316L Stainless Steel, PVDF, Acetal

Case or Body Material

Stainless steel 316L (1.4404)

Steel, powder coated

Process Connection Style

Flange according to ASME B16.5

Process Connection Size

1" ... 30"

Accuracy

Added Tolerance ±0.5% typical

Instrument Connection Style

Threaded

Pressure Rating

150, 300 lbs.

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