Starting at $767.54
  • Usually ships in 3-4 weeks



  • 360-degree sensing flexible inner liner
  • No process deadleg
  • 1 to 10in nominal pipe size
  • 1/4 or 1/2 NPT process connection
  • Non-clogging and low maintenance

This product is an accessory for the following products:


The Ashcroft 81 bolt thru isolation ring is designed to protect measuring devices such as pressure gauges, switches and transducers from direct contact with process media. The isolation ring uses a 360-degree flexible liner that eliminates the potential for clogging or fouling while transmitting pressure hydraulically to the instrument. The ring is mounted between customer-supplied flanges of process piping, and is available in nominal pipe sizes from 1 to 10 inches. Because the "ring" design eliminates process accumulation, it assures reliable and accurate pressure readings.

Ashcroft 81 Bolt Thru Isolation Ring Applications

  • Water and wastewater
  • Mining