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
Applications:
Process Market:
- Water and Wastewater
- Mining
- Pulp and Paper
Specifications
Certifications & Approvals
Datasheets & Instruction Manuals
Drawings
Size
1 ̋ to 30 ̋
Instrument Connection
¼, ½ NPT
Pressure Rating
Per customer flanges:ASME B16.5 150 or 300 class
Flange Dimensions & Pressure Ratings
ASME B16.5 specification
Added Tolerance
±0.5% typical
Wetted Components
End Plate Material: Carbon steel, 316L SS, PVDF, Acetal
Flexible Liner: Buna, PTFE, EPDM, Natural rubber, and Viton®
Non-Wetted Components
Body: Carbon Steel, 316 Stainless steel
Instrument Fittings: Adapters: 316L SS, Needle Valve: 316l SS, SQR: Zinc-plated carbon steel
Contact Ashcroft
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.