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Model LP7100 is a fixed-length, linear polarization resistance probe for use with HPTM and MHTM high pressure access systems. The probe assembly consists of an insertion rod with a hermetically sealed three-electrode endcap, a hollow plug nut, and a standard six-pin connector, which are all welded in place. The hollow plug nut on the probe screws into the hollow plug of the access system. This allows the probe to be installed in the process, using a retriever tool and service valve, without process shutdown. Several standard electrodes are available to meet your specific needs. Probe adaptors are also available and must be ordered separately. The insertion length (I.L.) can range from 2.000" up to any length specified by the customer in 1/8" increments, using one of the following formulas.
Top-of-the-line monitoring: I.L. = WT + 1.75
Middle-of-the-line monitoring: I.L. = PD + WT + 1.75 - 1/2EL
Bottom-of-the-line monitoring: I.L. = PD + WT + 1.75 - EL
(where PD = penetration depth, WT = wall thickness, EL = electrode length - see Alloy Chart below)Note: Formula valid for access fitting heights of 5.25" (HP) and 5.5" (MH).
Specifications:
Probe Body - 316 Stainless Steel or C276
Endcap Seal - Glass
Fill Material - Epoxy
Temperature Rating - 500° F / 260° C
Pressure Rating - 3600 PSI / 245 Bar
Mounting - High Pressure (HP or MH) Access System with Hollow Plug
| Model | |||||||
| HL | - Linear Polarization Three-Electrode Probe for High Pressure Access Systems | ||||||
| ¦ | Mounting Material | ||||||
| ¦ | 2 | - 316 | |||||
| ¦ | 3 | - C276 | |||||
| ¦ | ¦ | Connector Type | |||||
| ¦ | ¦ | 1 | - Small connector | ||||
| ¦ | ¦ | 2 | - Standard connector | ||||
| ¦ | ¦ | ¦ | LP Electrode Options | ||||
| ¦ | ¦ | ¦ | 1 | - Three-electrode integral type | |||
| ¦ | ¦ | ¦ | ¦ | Seal Type | |||
| ¦ | ¦ | ¦ | ¦ | 0 | - Glass | ||
| ¦ | ¦ | ¦ | ¦ | ¦ | Length (round calculated length down to the nearest 1/8") | ||
| ¦ | ¦ | ¦ | ¦ | ¦ | XXXX | - Length in inches, stated in 2 decimal place format (Ex: 6 1/8" = 0612) | |
| ¦ | ¦ | ¦ | ¦ | ¦ | ¦ | Options | |
| ¦ | ¦ | ¦ | ¦ | ¦ | ¦ | 000 | - None |
| ¦ | ¦ | ¦ | ¦ | ¦ | ¦ | ¦ | |
| HL | 2 | 2 | 1 | 0 | 0612 | 000 | Example of Probe Ordering # |
Electrode Part Number - EL412XXX2800000 (XXX - use Code in Alloy
Chart)
LPR probe electrodes are replaceable and sold separately. (See Electrodes.)
| Alloy Chart | |||
| Code | Description | UNS # | Electrode Length (EL) |
| 377 | C1018 | G10180 | 1.72" |
| 159 | 316L S.S. | S31603 | 1.62" |
| 419 | CDA110 | C11000 | 3.50" |
| 434 | CDA443 | C44300 | 3.17" |
For alloys, sizes, or other special requirements not listed, please contact our sales
department.
Not all alloys are available with all electrode types and seals.
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: (281) 471-2777
Fax: (281) 471-3405
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