ISO-Spool® For Small Diameter Piping
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-Spool®.
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 Spools, gone are the days when solids from the process flow plug the pressure-sensing mechanism or clog the access port on the diaphragm seal.
- 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
| RING OR SPOOL | BODY MATERIAL | END FLANGE MATERIAL | TYPE | FILL | GAUGE | SIZE | CYLINDER MATERIALS |
R=ISO Ring® S=ISO Spool® B=Bolt-Thru ISO-Ring® | CS=Carbon Steel SS=316 Stainless Steel | 1=Carb. Stl 2=316 SST 3=Carb. Stl w/PTFE envelope 4=316 SST PTFE envelope 5=cpvc-ISO-Spool only (flat faced flange) 6=other | N=without IRD** I=with IRD** T=Threaded F=Flanged/ 150Lb.* G=Flanged/ 300Lb.*
*Spool Only **IRD= Instrument Removal Device | 00=less fill** 11=propylene glycol 12=distilled water 13=mineral oil 14=silicone oil 15=vegetable oil 16=glycerine 17=fluorolube 18=fluorosilicone 19=other | 00=less gauge, 1/4" conn. 01=less gauge; 1/2" conn. 02=0-60 psi 03=0-100 psi 04=0-200 psi 05=0-400 psi 06=0-600 psi 08=customer supplied 09 = other | 040=4" 050=5" 060=6" 080=8" 100=10" 120=12" 140=14" 160=16" 180=18" 200=20" | 1=Buna-N 2=Fluorocarbon 3=PTFE 4=EPDM*** 5=silicone* 6=white buna 7=natural rubber 8=other |
Dimensions
ISO-Spool® (Threaded)
| Pipe Size | A | B | Approx. Shipping Wt. | |||
| in. | mm | in. | mm | lbs | kg | |
| 1" | 3-9⁄16" | (90 mm) | 7 5⁄8" | (194 mm) | 10 lbs | (4.5 kg) |
| 1-1⁄2" | 4-3⁄8" | (111 mm) | 7 7⁄8" | (200 mm) | 12 lbs | (5.4 kg) |
ISO-Spool® (Flanged)
| Pipe Size | Class 150 | Class 300 | B | Class 150 | Class 300 | |||||
| in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | |
| 1" | 4 1⁄4" | (108 mm) | 4 7⁄8” | (124 mm) | 5 3⁄8" | (136 mm) | 8" | (203 mm) | 9" | (229 mm) |
| 1-1⁄2" | 5" | (127 mm) | 6 1⁄8” | (156 mm) | 5 3⁄8" | (136 mm) | 10" | (254 mm) | 12" | (305 mm) |
| 2" | 6" | (152 mm) | – | – | 5 3⁄8" | (136 mm) | 15" | (381 mm) | – | – |
| 3" | 7 1⁄2" | (191 mm) | – | – | 5 3⁄8" | (136 mm) | 22" | (559 mm) | – | – |
| 4" | 9" | (229 mm) | – | – | 5 3⁄8" | (136 mm) | 27" | (686 mm) | – | – |
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ISO-Ring Gauge Isolation Spool Installation Operations Manual_021809
- 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
| RING OR SPOOL | BODY MATERIAL | END FLANGE MATERIAL | TYPE | FILL | GAUGE | SIZE | CYLINDER MATERIALS |
R=ISO Ring® S=ISO Spool® B=Bolt-Thru ISO-Ring® | CS=Carbon Steel SS=316 Stainless Steel | 1=Carb. Stl 2=316 SST 3=Carb. Stl w/PTFE envelope 4=316 SST PTFE envelope 5=cpvc-ISO-Spool only (flat faced flange) 6=other | N=without IRD** I=with IRD** T=Threaded F=Flanged/ 150Lb.* G=Flanged/ 300Lb.*
*Spool Only **IRD= Instrument Removal Device | 00=less fill** 11=propylene glycol 12=distilled water 13=mineral oil 14=silicone oil 15=vegetable oil 16=glycerine 17=fluorolube 18=fluorosilicone 19=other | 00=less gauge, 1/4" conn. 01=less gauge; 1/2" conn. 02=0-60 psi 03=0-100 psi 04=0-200 psi 05=0-400 psi 06=0-600 psi 08=customer supplied 09 = other | 040=4" 050=5" 060=6" 080=8" 100=10" 120=12" 140=14" 160=16" 180=18" 200=20" | 1=Buna-N 2=Fluorocarbon 3=PTFE 4=EPDM*** 5=silicone* 6=white buna 7=natural rubber 8=other |
Dimensions
ISO-Spool® (Threaded)
| Pipe Size | A | B | Approx. Shipping Wt. | |||
| in. | mm | in. | mm | lbs | kg | |
| 1" | 3-9⁄16" | (90 mm) | 7 5⁄8" | (194 mm) | 10 lbs | (4.5 kg) |
| 1-1⁄2" | 4-3⁄8" | (111 mm) | 7 7⁄8" | (200 mm) | 12 lbs | (5.4 kg) |
ISO-Spool® (Flanged)
| Pipe Size | Class 150 | Class 300 | B | Class 150 | Class 300 | |||||
| in. | mm | in. | mm | in. | mm | in. | mm | in. | mm | |
| 1" | 4 1⁄4" | (108 mm) | 4 7⁄8” | (124 mm) | 5 3⁄8" | (136 mm) | 8" | (203 mm) | 9" | (229 mm) |
| 1-1⁄2" | 5" | (127 mm) | 6 1⁄8” | (156 mm) | 5 3⁄8" | (136 mm) | 10" | (254 mm) | 12" | (305 mm) |
| 2" | 6" | (152 mm) | – | – | 5 3⁄8" | (136 mm) | 15" | (381 mm) | – | – |
| 3" | 7 1⁄2" | (191 mm) | – | – | 5 3⁄8" | (136 mm) | 22" | (559 mm) | – | – |
| 4" | 9" | (229 mm) | – | – | 5 3⁄8" | (136 mm) | 27" | (686 mm) | – | – |
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ISO-Ring Gauge Isolation Spool Installation Operations Manual_021809
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