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81 Bolt Thru Isolation Ring
Brand: Ashcroft IncDoes not ship to OH, United States
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.
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
- NSF-61 Compliant
Specifications
Brand
Size
- 1" to 10" (25.4 to 254 mm)
Temperature Limit
- Buna-N & Natural Rubber: -34° to 107° C (-30° to 225° F)
- EPDM: -40° to 149° C (-40° to 300° F)
- PTFE & Viton: -25° to 177° C (-15° to 350° F)
Instrument Connection
- 1/2" NPT Female
- 1/4" NPT Female
Added Tolerance
- ±0.5% Typical
Pressure Rating
- Per Customer Flanges: ASME B16.5 150 or 300 Class
Instrument Removal
- Direct-mount, Needle valve, Safe Quick Release (SQR™), Needle valve and SQR™ (02T conn.)
Fill Material
- Glycerin
- Halocarbon
- Silicone 50 or 10 cSt
- 50/50 Ethylene Glycol/Water
Body Material
- 316 Stainless Steel
- Carbon Steel
End Plate Material
- 316L Stainless Steel
- Carbon Steel
- CPVC
- PVDF
- Acetal
Materials of Construction
- Adapters & Needle Valve: 316L Stainless steel
- SQR: Zinc-plated carbon steel
Flexible Liner Material
- Buna-N, PTFE, EPDM
- Natural Rubber, and Viton™
Approvals & Certifications
- CRN - Canadian Registration Number
- NSF-61
- Mining
- Water & Wastewater
- Pulp & Paper
