ISO-Ring® Gauge Isolation Ring
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/Benefits
- 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
| Body Materials: | Carbon Steel | |
| 316 Stainless Steel | ||
| End Flanges: | Carbon Steel | |
| 316 Stainless Steel | ||
| CPVC | ||
| Ultra High Molecular Weight Polyethene (UHMW) | ||
| Inner Flexible Wall: | Buna-N | EPDM |
| PFTE1 | ||
| Silicone | ||
| Fluorocarbon | ||
| White Buna | ||
| Natural Rubber | ||
| Captive Sensing Liquid: | Propylene Glycol | Vegetable Oil |
| Silicone Oil (FDA Approved) | Glycerine | |
| Fluorosilicone | Fluorolube | |
| Mineral Oil | ||
| Distilled Water | ||
| 1 Not Available in sizes 12" or larger Note: Other material combinations are available upon request | ||
Order Guide
Dimensions
| Pipe Size | A | B | Approx. Shipping Wt. | |||
| in. | mm | in. | mm | lbs | kg | |
| 2" | 6-15⁄16" | (176 mm) | 2" | (51 mm) | 3 lbs | (1.35 kg) |
| 3" | 8-3⁄16" | (208 mm) | 2" | (51 mm) | 6 lbs | (2.70 kg) |
| 4" | 9" | (229 mm) | 1 1⁄2" | (38 mm) | 8 lbs | (3.6 kg) |
| 5" | 10-1⁄4" | (260 mm) | 1 1⁄2" | (38 mm) | 10 lbs | (4.5 kg) |
| 6" | 11-3⁄16" | (284 mm) | 1 1⁄2" | (38 mm) | 12 lbs | (5.4 kg) |
| 8" | 13-3⁄8" | (340 mm) | 1 1⁄2" | (38 mm) | 16 lbs | (7.3 kg) |
| 10" | 15-9⁄16" | (395 mm) | 1 1⁄2" | (38 mm) | 20 lbs | (9.1 kg) |
| 12" | 17-9⁄16" | (446 mm) | 1 1⁄2" | (44 mm) | 25 lbs | (11.4 kg) |
| 14" | 19-15⁄16" | (506 mm) | 1 1⁄2" | (44 mm) | 50 lbs | (22.7 kg) |
| 16" | 21-15⁄16" | (557 mm) | 2" | (51 mm) | 60 lbs | (27.2 kg) |
| 18" | 24-3⁄16" | (614 mm) | 2" | (51 mm) | 70 lbs | (31.8 kg) |
| 20" | 26-1⁄16" | (662 mm) | 2" | (51 mm) | 80 lbs | (36.3 kg) |
Downloads
-
ISO-Ring Gauge Isolation Ring Installation Operations Manual
Features/Benefits
- 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
| Body Materials: | Carbon Steel | |
| 316 Stainless Steel | ||
| End Flanges: | Carbon Steel | |
| 316 Stainless Steel | ||
| CPVC | ||
| Ultra High Molecular Weight Polyethene (UHMW) | ||
| Inner Flexible Wall: | Buna-N | EPDM |
| PFTE1 | ||
| Silicone | ||
| Fluorocarbon | ||
| White Buna | ||
| Natural Rubber | ||
| Captive Sensing Liquid: | Propylene Glycol | Vegetable Oil |
| Silicone Oil (FDA Approved) | Glycerine | |
| Fluorosilicone | Fluorolube | |
| Mineral Oil | ||
| Distilled Water | ||
| 1 Not Available in sizes 12" or larger Note: Other material combinations are available upon request | ||
Order Guide
Dimensions
| Pipe Size | A | B | Approx. Shipping Wt. | |||
| in. | mm | in. | mm | lbs | kg | |
| 2" | 6-15⁄16" | (176 mm) | 2" | (51 mm) | 3 lbs | (1.35 kg) |
| 3" | 8-3⁄16" | (208 mm) | 2" | (51 mm) | 6 lbs | (2.70 kg) |
| 4" | 9" | (229 mm) | 1 1⁄2" | (38 mm) | 8 lbs | (3.6 kg) |
| 5" | 10-1⁄4" | (260 mm) | 1 1⁄2" | (38 mm) | 10 lbs | (4.5 kg) |
| 6" | 11-3⁄16" | (284 mm) | 1 1⁄2" | (38 mm) | 12 lbs | (5.4 kg) |
| 8" | 13-3⁄8" | (340 mm) | 1 1⁄2" | (38 mm) | 16 lbs | (7.3 kg) |
| 10" | 15-9⁄16" | (395 mm) | 1 1⁄2" | (38 mm) | 20 lbs | (9.1 kg) |
| 12" | 17-9⁄16" | (446 mm) | 1 1⁄2" | (44 mm) | 25 lbs | (11.4 kg) |
| 14" | 19-15⁄16" | (506 mm) | 1 1⁄2" | (44 mm) | 50 lbs | (22.7 kg) |
| 16" | 21-15⁄16" | (557 mm) | 2" | (51 mm) | 60 lbs | (27.2 kg) |
| 18" | 24-3⁄16" | (614 mm) | 2" | (51 mm) | 70 lbs | (31.8 kg) |
| 20" | 26-1⁄16" | (662 mm) | 2" | (51 mm) | 80 lbs | (36.3 kg) |
Downloads
-
ISO-Ring Gauge Isolation Ring Installation Operations Manual
OPW CORPORATE HEADQUARTERS
9393 Princeton-Glendale Road
Hamilton, Ohio, USA 45011
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