A Division of Alabama Specialty Products, Inc.
Line Items in Quote Request:

Model LP7100

Linear Polarization Resistance Probe
Retrievable with 3-Electrode Endcap
for High Pressure (HP™ and MH™) Access Systems

View PDF version


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 the formula below:

I.L. = PD + WT + 1.75

(where PD = penetration depth, WT = wall thickness)

Note: I.L. does not include electrode length (see Alloy Chart below).
: Formula valid for access fitting heights of 5.25" (HP) and 5.5" (MH).


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

LP7100 Ordering Information

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 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.)


EL412 Style Electrodes

el412.gif (2216 bytes)
Common Electrodes
Alloy UNS Number Part#  
C1018 Carbon Steel G10180 EL4123772800000
304L Stainless Steel G30403 EL4121452800000
316L Stainless Steel S31603 EL4121592800000
CDA110 Copper C11000 EL4124192800000
CDA443 Admiralty Brass C44300 EL4124342800000
AL1100 Aluminum A91100 EL4122902800000
AL6061 Aluminum A96061 EL4123382800000
AL7075 Aluminum A97075 EL4122272800000
Other - Please specify in comments N/A EL412XXX2800000
  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
Follow us on Facebook

Metal Samples Company is a division of Alabama Specialty Products, Inc. - Copyright © 2020