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Model LP4000 is a retractable, linear polarization resistance probe commonly used in
field and plant applications. A specially designed packing gland is used with the probe
for insertion into or retraction from a pressurized system without a process shutdown. The
packing gland is designed to mount easily on a 1" piping system, but it can be
modified for your specific mounting requirements. The probe assembly consists of a packing
gland, an insertion rod with a hermetically sealed two-electrode endcap, and a six-pin
connector welded in place. A safety chain is also provided to prevent blowout. Standard
packing material in the packing gland is Teflon®, however, grafoil packing can be
provided for high temperature applications. 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 for the probe can be
ordered separately. Several standard electrodes and probe lengths are available to meet
your specific needs.
| Specifications: Probe Body - 316 Stainless Steel or C276 Endcap Seal - Glass Fill Material - Epoxy Temperature Rating - Teflon® - 500° F / 260° C Grafoil - 850° F / 454° C Pressure Rating - 1500 PSI / 102 Bar Mounting - 1" Full Port Valve (Min.) |
STD. LENGTH | I.L. (max) |
| 24" | 17.53" | |
| 30" | 23.53" | |
| 36" | 29.53" | |
| 42" | 35.53" |
The Easy Tool is required for probe
insertion or retraction in systems with pressure over 150 pounds.
See Packing Gland Instructions and Safety Chain Instructions.
See Length Calculation and Accessories for Retractable Probes.
| Model | ||||||
| LP45 | - Linear Polarization 1" Female NPT Probe, Packing Gland with Teflon® | |||||
| LP75 | - Linear Polarization 1" Female NPT Probe, Packing Gland with Grafoil | |||||
| ¦ | Probe Body Material | |||||
| ¦ | 22 | - 316 | ||||
| ¦ | 44 | - C276 | ||||
| ¦ | ¦ | LP Electrode Options | ||||
| ¦ | ¦ | 20 | - Two-electrode integral type | |||
| ¦ | ¦ | ¦ | Seal Type | |||
| ¦ | ¦ | ¦ | 1 | - Glass | ||
| ¦ | ¦ | ¦ | ¦ | Length | ||
| ¦ | ¦ | ¦ | ¦ | 24 | - 17.53" max. insertion length | |
| ¦ | ¦ | ¦ | ¦ | 30 | - 23.53" max. insertion length | |
| ¦ | ¦ | ¦ | ¦ | 36 | - 29.53" max. insertion length | |
| ¦ | ¦ | ¦ | ¦ | 42 | - 35.53" max. insertion length | |
| ¦ | ¦ | ¦ | ¦ | ¦ | Options | |
| ¦ | ¦ | ¦ | ¦ | ¦ | 000 | - None |
| ¦ | ¦ | ¦ | ¦ | ¦ | ¦ | |
| LP45 | 22 | 20 | 1 | 24 | 000 | Example of Probe Ordering # |
Electrode Part Number - EL400XXX2800000 (XXX - use Code in Alloy
Chart)
LPR probe electrodes are replaceable and sold separately. (See Electrodes.)
| Alloy Chart | ||
| Code | Description | UNS # |
| 375 | C1010 | G10100 |
| 419 | CDA110 | C11000 |
| 434 | CDA443 | C44300 |
| 159 | 316L S.S. | S31603 |
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
 LP3100 |
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