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

Model LP3000

Linear Polarization Resistance Probe
Fixed Length with 3/4" NPT Fitting & 2-Electrode Endcap

View PDF version


Model LP3000 is a linear polarization resistance probe commonly used in laboratory, bypass-loop, and field applications. The assembly consists of a 3/4" NPT compression fitting, an insertion rod with a hermetically sealed two-electrode endcap, and a six-pin connector welded in place. The insertion length (I.L.) is calculated to the end of the electrode and can be specified by the customer. For standard probes, the maximum insertion length is given in the chart below. Electrodes are ordered separately. Several standard electrodes are available to meet your specific needs.


Probe Body - 316 Stainless Steel
Endcap Seal - Glass
Fill Material - Epoxy
Temperature Rating - 500° F / 260° C
Pressure Rating - 1500 PSI / 102 Bar
Mounting - 3/4" NPT Pipe Plug

Std. Length I.L. (Max)
6" 5.25"
8" 7.25"
12" 11.25"
18" 17.25"

LP3000 Ordering Information

LP3 - Linear Polarization Adjustable Length Pipe Plug Probe
  Pipe Plug Size
2 - 3/4" NPT
3 - 1" NPT
  Probe Body Material
22 - 316
  LP Electrode Options
20 - Two-electrode integral type
Seal Type
1 - Glass
06 - 5.25" max. insertion length
08 - 7.25" max. insertion length
12 - 11.25" max. insertion length
18 - 17.25" max. insertion length
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.)
* Chemically equivalent to standard pipe-grade carbon steels.

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
Follow us on Facebook

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