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| Model HY7000 and HY7001 are high pressure hydrogen probe configurations which can be used for pressures up to 3600 psi. Hydrogen probes are commonly used for monitoring hydrogen permeation in steels, which could lead to embrittlement, blistering, and decarburization resulting in the failure of the material. The intrusive hydrogen probe assembly consists of three subassemblies (sold separately): the gauge assembly, the hollow plug assembly, and the HY7000 sensing element assembly. The gauge assembly consists of a gauge body, a pressure gauge (0-40 psi), a temperature gauge, and a bleed valve. The sensing element on the HY7000 probe is about 3 inches long and consists of a thin-walled tube which is sealed from the process and allows nascent hydrogen to permeate. The minimum insertion length (I.L.) of the probe is 6 inches and can be ordered in 1 inch increments. The HY7001 housing can be machined to fit the flat surfaces of tanks or radiused to fit pipe diameters. The HY7001 consists of two subassemblies: the gauge assembly and the non-intrusive housing that can be welded directly to the exterior of the pipe wall or vessel. |
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Specifications: Probe Body - 316 Stainless Steel Temperature Rating - 500° F / 260° C Pressure Rating - 3600 PSI / 245 Bar Mounting - High Pressure (HP or MH) Access System with Hollow Plug
(HY7000) |
Gage Assembly Parts* | |
| Part # | Description | |
| PS5509 | Gage Assembly (complete) - contains all parts listed below |
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| PR6441158 | Pressure Gage | |
| PR6032 | Temperature Gage | |
| PR6034 | Bleed Valve | |
| PS5603158 | Gage Block/Rod Assembly | |
| * The gauge assembly is sold separately, not included with probe. | ||
| Model | ||
| HA103158378 | - High Pressure Hydrogen Probe Sensing Element | |
| ¦ | Length | |
| ¦ | XX | - Length in inches (Ex: 6" = 06). Available in 1" increments starting at 6". |
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| HA103158378 | XX | Example of Probe Ordering # |
Length formula:
I.L. + PD + WT + 1.75"
(where PD = penetration depth, WT = wall thickness)
Note: Formula valid for access fitting heights of 5.25" (HP) and 5.5" (MH).
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Model |
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HA103001 |
- Non-Intrusive Hydrogen Housing |
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Alloy |
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158 |
- 316 |
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Pipeline Size |
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1 |
- 2" |
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2 |
- 3" |
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| ¦ | ¦ | 3 | - 4" | |
| ¦ | ¦ | 4 | - 6" | |
| ¦ | ¦ | 5 | - 8-10" | |
| ¦ | ¦ | 6 | - 12-18" | |
| ¦ | ¦ | 7 | - 20-26" | |
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8 |
- Flat |
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Gauge Block / Rod Assembly |
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¦ |
¦ |
¦ |
0 |
- Not included |
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¦ |
¦ |
¦ |
1 |
- Included |
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HA103001 |
158 |
1 |
0 |
Example of Housing Ordering # |
Contact Metal Samples Corrosion Monitoring Systems sales department for pricing and availability.
Main Office:
Phone: (256) 358-4202
Fax: (256) 358-4515
E-mail: msc@alspi.com
Houston Office:
Phone: (832) 451-6825
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