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Model LP7300

CorrTran Style 3-Electrode LPR Probe
Retrievable for High Pressure (HP™ and MH™) Access Systems

View data sheet (PDF)


Model LP7300 is a fixed-length, linear polarization resistance probe for use with HP™ and MH™ high pressure access systems and is specifically designed for use with CorrTran style instruments. 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 retrieval 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).

Electrodes are available in a wide variety of alloys and are sold separately (see Optional Accessories). 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

LP7300 Ordering Information

HL - Linear Polarization Three-Electrode Probe for High Pressure Access System
  Probe Body Material
22 - 316
32 - C276
  LP Electrode Options
H - Three-electrode CorrTran style
  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.)

Optional Accessories

EL525 Electrodes  
Metal Samples Company

P.O. Box 8
152 Metal Samples Rd.
Munford, AL 36268

: (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 © 2024