The Ashcroft 81 Bolt-Thru Isolation Ring helps protect pressure instruments in demanding process applications. It mounts inline with process piping and supports continuous pressure measurement where buildup, clogging, or instrument exposure can create reliability issues.
This bolt-thru isolation ring uses a ring-style design to reduce process accumulation. As a result, it helps maintain accurate pressure readings while protecting gauges, switches, and transmitters from harsh process media. The Ashcroft 81 also offers multiple liner, end plate, body, fill fluid, and instrument removal options. Therefore, teams can configure the ring to suit specific process conditions.
Westech Industrial supplies the Ashcroft 81 Bolt-Thru Isolation Ring in Alberta and Saskatchewan. In addition, Westech supports customers with product selection, service capabilities, and custom fabrication. Our team can help match pressure instrumentation with process requirements, installation needs, and broader system design considerations.
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Description
Inline Protection for Pressure Instruments
The Ashcroft 81 Bolt-Thru Isolation Ring protects pressure instruments by separating the instrument from direct process exposure. This design helps extend instrument life and supports reliable pressure measurement in applications where process media can plug, coat, or damage standard connections. Because the ring mounts inline with the piping, it allows the pressure instrument to monitor the process while reducing the risk of buildup at the measurement point.
Non-Clogging, Low-Maintenance Design
The bolt-thru isolation ring supports applications that need dependable readings with less maintenance. Its ring-style construction helps reduce process accumulation, which can improve uptime and reduce the need for frequent cleaning. This makes the Ashcroft 81 a strong choice for services that involve slurry, solids, wastewater, or other challenging media. In addition, the non-clogging design helps operators maintain more consistent pressure information over time.
Flexible Material and Configuration Options
The Ashcroft 81 offers several wetted material options to suit different process conditions. End plate material options include carbon steel, 316L stainless steel, PVDF, Acetal, and CPVC. Flexible liner options include Buna-N, PTFE, EPDM, natural rubber, and Viton™. With these choices, users can select materials that align with temperature, compatibility, and application requirements.
The ring also includes non-wetted body options in carbon steel and 316 stainless steel. Instrument fittings include 316L stainless steel adapters and needle valves. The SQR™ option uses zinc-plated carbon steel.
Instrument Removal and Rotation Options
The Ashcroft 81 can support direct-mount installation, needle valve configurations, Safe Quick Release (SQR™), or a needle valve with SQR™. The SQR™ option allows 360° instrument rotation, which helps simplify gauge orientation during installation and maintenance. This feature can improve visibility and make the instrument easier to position in the field.
Built for Continuous Pressure Measurement
This bolt-thru isolation ring works well where continuous pressure measurement matters. It helps maintain accurate readings while protecting connected instruments from demanding process conditions. Optional retrofit end plates also allow the ring to replace select competitive units, which can simplify upgrades or replacements.
Applications
The Ashcroft 81 Bolt-Thru Isolation Ring supports process applications where pressure instruments need protection from clogging, buildup, or direct exposure to challenging media. It works especially well in industries that require continuous pressure measurement with reduced maintenance.
- Water and wastewater
- Mining
- Slurry and solids-handling processes
- Pump discharge and process piping
- Pressure gauge protection
- Pressure switch and transmitter protection
- Retrofit applications using optional end plates
Manufacturer info
Ashcroft® transducers/transmitters, pressure and temperature switches, thermometers, test equipment, and extensive variety of pressure gauges are manufactured for industrial and commercial ventures that require sanitary pressure instruments such as pharmaceutical, biotech and food processing applications.
