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ISO-Ring® Gauge Isolation Ring

Brand: OPW Engineered Systems
OPW's patented Gauge Isolation Ring, called ISO-Ring®, is designed to isolate gauges or pressure switches from solids in process flow and to ensure accurate pressure readings.

Why ISO-Ring?

Clogging or fouling typically associated with diaphragm seals used in viscous fluid applications result in erroneous pressure readings.

This is never a problem with the OPW ISO-Ring®.

ISO-Ring® utilizes a specially designed flush-mounted flexible inner cylinder, behind which is a clean, captive liquid.

As process liquid flows through the pipe, it exerts pressure through the flexible cylinder to the captive liquid.

There’s a common refrain reverberating throughout the industrial world these days, and its message is unmistakably clear: Out with the old diaphragm seal. In with the OPW’s ISO-Ring®.

Indeed, for the steady and growing number of companies embracing and implementing this simple call-to-action, something powerfully refreshing and highly reassuring is happening as process liquid flows through their pipes: Process flow is smooth and uninterrupted; pressure readings are consistently reliable and accurate.

Thanks to OPW's advanced, patented Gauge Isolation Ring, gone are the days when solids from the process flow plug the pressure-sensing mechanism or clog the access port on the diaphragm seal.
Features
  • Gauge or Switch is In Contact Only with Captive Liquid and Never Directly with the Process Liquid.
  • Isolating the Gauge or Switch from Solids in Process Flow Results in Accurate Readings. 
  • Gauge or Switch can be Removed for Calibration, Repair, or Replacement - without Interrupting Process Flow. 
  • Unique Flexible Cylinder Prevents Plugging, which Means Pressure Readings are Reliable and Accurate. 
  • Integral Design Eliminates Accidental Breakage. 
  • Adaptable to a Variety Of Process Conditions and Applications. 
  • Will not Clog - which is not True of Diaphragm Seals
OPW's patented Gauge Isolation Ring, called ISO-Ring®, is designed to isolate gauges or pressure switches from solids in process flow and to ensure accurate pressure readings.

Why ISO-Ring?

Clogging or fouling typically associated with diaphragm seals used in viscous fluid applications result in erroneous pressure readings.

This is never a problem with the OPW ISO-Ring®.

ISO-Ring® utilizes a specially designed flush-mounted flexible inner cylinder, behind which is a clean, captive liquid.

As process liquid flows through the pipe, it exerts pressure through the flexible cylinder to the captive liquid.

There’s a common refrain reverberating throughout the industrial world these days, and its message is unmistakably clear: Out with the old diaphragm seal. In with the OPW’s ISO-Ring®.

Indeed, for the steady and growing number of companies embracing and implementing this simple call-to-action, something powerfully refreshing and highly reassuring is happening as process liquid flows through their pipes: Process flow is smooth and uninterrupted; pressure readings are consistently reliable and accurate.

Thanks to OPW's advanced, patented Gauge Isolation Ring, gone are the days when solids from the process flow plug the pressure-sensing mechanism or clog the access port on the diaphragm seal.
Features
  • Gauge or Switch is In Contact Only with Captive Liquid and Never Directly with the Process Liquid.
  • Isolating the Gauge or Switch from Solids in Process Flow Results in Accurate Readings. 
  • Gauge or Switch can be Removed for Calibration, Repair, or Replacement - without Interrupting Process Flow. 
  • Unique Flexible Cylinder Prevents Plugging, which Means Pressure Readings are Reliable and Accurate. 
  • Integral Design Eliminates Accidental Breakage. 
  • Adaptable to a Variety Of Process Conditions and Applications. 
  • Will not Clog - which is not True of Diaphragm Seals

Specifications

Housing

  • Carbon Steel
  • 316 Stainless Steel

Assembly Flanges

  • Carbon Steel
  • 316 Stainless Steel
  • CPVC
  • Ultra High Molecular Weight Polyethene

Inner Flexible Wall

  • Buna-N
  • PFTE - Not Available in sizes 12” or larger
  • Silicone
  • Flourocarbon
  • White Neoprene
  • Natural Rubber
  • EPDM

Captive Sensing Liquid

  • Propylene Glycol
  • Silicone Oil (FDA Approved)
  • Fluorosilicone
  • Mineral Oil
  • Distilled Water
  • Vegetable Oil
  • Glycerine
  • Flourolube