81 Bolt Thru Isolation Ring

NSF-61 Compliant

81 Bolt Thru Isolation Ring

The Ashcroft® 81 isolation ring or isolation device is mounted inline with process piping.
NSF-61 Compliant
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

Markets & Applications

Pulp and Paper

Water and Wastewater

Mining

  • Specifications
  • Downloads

Accuracy

Added Tolerance ±0.5% typical

Instrument Connection Style

Threaded

Pressure Rating

150, 300 lbs.

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

Steel, powder coated

Stainless steel 316L (1.4404)

Process Connection Style

Flange according to ASME B16.5

Process Connection Size

1" ... 30"

Data Sheets
Installation + Maintenance
Declaration of Conformity
Industry Brochures
Product + Technical Information
Safety Data Sheets

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