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81 Bolt-Thru Isolation Ring
Brand: Ashcroft Inc.
The Ashcroft 81 isolation ring or isolation device is mounted inline with process piping.
Used for process protection of measuring instruments, the "ring" design eliminates process accumulation, it assuring reliable and accurate pressure readings.
Ideal when reliable and continuous pressure measurement is needed.
Features- 360° instrument rotation with SQR option
- Selection of 1" through 20" nominal pipe size
- Non-clogging/low maintenance
- Complete instrument protection
- Ensure reliable/accurate pressure readings
- Optional retrofit flange to replace competitive units
Specifications
Brand
Applications
- Mining
- Water & Wastewater
Approvals & Certifications
- CRN
Enclosure, Body Material
- 316L Stainless Steel
- Carbon Steel
Fill Material
- Glycerin
- Halocarbon
- Silicone
Flange Material
- 316L Stainless Steel
- Carbon Steel
- CPVC
- PVDF
Flange Size - 1-1/2" (DN40)
- 1-1/2" (DN40) - 150# (ASME)
Flange Size - 1" (DN25)
- 1" (DN25) - 150# (ASME)
- 1" (DN25) - 300# (ASME)
Flange Size - 10" (DN250)
- 10" (DN250) - 150# (ASME)
- 10" (DN250) - 300# (ASME)
Flange Size - 2" (DN50)
- 2" (DN50) - 150# (ASME)
- 2" (DN50) - 300# (ASME)
Flange Size - 3" (DN80)
- 3" (DN80) - 150# (ASME)
- 3" (DN80) - 300# (ASME)
Flange Size - 4" (DN100)
- 4" (DN100) - 150# (ASME)
- 4" (DN100) - 300# (ASME)
Flange Size - 6" (DN150)
- 6" (DN150) - 150# (ASME)
- 6" (DN150) - 300# (ASME)
Flange Size - 8" (DN200)
- 8" (DN200) - 150# (ASME)
- 8" (DN200) - 300# (ASME)
Flange Type
- Retrofit Flange
Materials of Construction
- Flexible Liner: Buna
- Flexible Liner: EPDM
- Flexible Liner: Natural Rubber
- Flexible Liner: Teflon
- Flexible Liner: Viton
Mounting
- Direct Mounting
NPS Connection
- 1" NPS Male
- 10" NPS Male
- 1-1/2" NPS Male
- 12" NPS Male
- 14" NPS Male
- 16" NPS Male
- 18" NPS Male
- 2" NPS Male
- 20" NPS Male
- 3" NPS Male
- 4" NPS Male
- 6" NPS Male
- 8" NPS Male
NPT Connection
- 1/2" NPT Male
- 1/4" NPT Male
Process Temperature
- Buna-N & Natural Rubber: -34° to 107° C (-30° to 225° F)
- EPDM: -40° to 149° C (-40° to 300° F)
- Teflon & Viton: -25° to 177° C (-15° to 350° F)
Rotation
- 360° Instrument Rotation
Size
- Bolt-Thru: 1" to 10" (25.4 to 254 mm)
Temperature Range
- Fill Glycerin: 0° to 204° C (0° to 400° F)
- Fill Halocarbon: -57° to 149° C (-70° to 300° F)
- Fill Silicone (10 cSt): -40° to 260° C (-40° to 500° F)
- Fill Silicone (50 cSt): -40° to 316° C (-40° to 600° F)
