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Model LP7000

Linear Polarization Resistance Probe
Retrievable with 2-Electrode Endcap
for High Pressure (HP™ and MH™) Access Systems

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Model LP7000 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 two-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. The insertion length (I.L.) can range from 3.000" up to any length specified by the customer in 1/8" increments, using the formula below. (This includes 1.25" for the length of the electrode.)

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).

Several standard electrodes are available to meet your specific needs. Probe adaptors are also available and must be ordered separately.


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

LP7000 Ordering Information

HL - Linear Polarization Two-Electrode Probe for High Pressure Access Systems
  Mounting Material
2 - 316
3 - C276
  Connector Type
1 - Small Connector
2 - Standard Connector
  LP Electrode Options
0 - Two-electrode integral type
Seal Type
0 - Glass
1 - Epoxy
  Length (Round calculated length to nearest 1/8")
Enter length in inches, stated in 2 decimal place format (Example: 6 1/8" = 0612) Click here to open Length Calculator
000 - None

Your Part Number



This list represents our most common options.  Many other sizes, alloys, and options are available.
Please contact your Metal Samples sales representative if you do not see what you're looking for.
(Note: Not all alloys are available with all element types and seals.)

Electrodes are replaceable and are sold separately (below.)


EL400 Style Electrodes

Common Electrodes
Alloy UNS Number Part#  
C1010 Carbon Steel G10100 EL4003752800000
304L Stainless Steel G30403 EL4001452800000
316L Stainless Steel S31603 EL4001592800000
CDA110 Copper C11000 EL4004192800000
CDA443 Admiralty Brass C44300 EL4004342800000
AL1100 Aluminum A91100 EL4002902800000
AL6061 Aluminum A96061 EL4003382800000
AL7075 Aluminum A97075 EL4002272800000
Other - Please specify in comments N/A EL400XXX2800000
  Metal Samples Company
P.O. Box 8
152 Metal Samples Rd.
Munford, AL 36268
Phone: (256) 358-4202
Fax: (256) 358-4515

E-mail: msc@alspi.com
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Metal Samples Company is a division of Alabama Specialty Products, Inc. - Copyright © 2020