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Model ER7220 is an adjustable-length, flush-mount, retrievable, electrical resistance probe for use with HPTM and MHTM high pressure access systems. These probes are ideally suited for applications where the probe element needs to be flush with the wall of the pipe to prevent any obstructions. The probe assembly consists of an insertion rod with an element, a hermetically sealed connector, and a hollow plug nut, 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 a minimum of 1.75" up to any length in 1" increments (specify lengths over 1.75" as 2", 3", 4", etc.) specified by the customer using the formula below. The adjustable flush element allows for a total adjustment of 1".
I.L. = PD + WT + 1.75"
(where PD = penetration depth, WT = wall thickness)
For top-of-the-line, flush-mount monitoring, PD = 0.
Note: Formula valid for access fitting heights of 5.25" (HP) and 5.5" (MH).
Several standard elements are available to meet your specific needs. Probe adaptors are
available and must be ordered separately.
Specifications:
Probe Body - 316 Stainless Steel
Element Seal - Epoxy
Fill Material - Epoxy
Temperature Rating - 500° F / 260° C
Pressure Rating - 3600 PSI / 245 Bar
Mounting - High Pressure (HPTM and MHTM) Access
System with Hollow Plug
| Model | |||||||
| HR | - Electrical Resistance Probe for High Pressure (HPTM and MHTM) Access Systems | ||||||
| ¦ | Mounting Material | ||||||
| ¦ | 2 | - 316 | |||||
| ¦ | 3 | - C276 | |||||
| ¦ | ¦ | Connector Type | |||||
| ¦ | ¦ | 1 | - Small connector | ||||
| ¦ | ¦ | 2 | - Standard connector | ||||
| ¦ | ¦ | ¦ | ER Element Options | ||||
| ¦ | ¦ | ¦ | C3 | - S05 Flush Mount - 5 mil thickness (2.5 mil useful probe life) | |||
| ¦ | ¦ | ¦ | D3 | - S10 Flush Mount - 10 mil thickness (5 mil useful probe life) | |||
| ¦ | ¦ | ¦ | E3 | - S20 Flush Mount - 20 mil thickness (10 mil useful probe life) | |||
| ¦ | ¦ | ¦ | F3 | - S40 Flush Mount - 40 mil thickness (20 mil useful probe life) | |||
| ¦ | ¦ | ¦ | ¦ | Length (round calculated length down to the nearest inch) | |||
| ¦ | ¦ | ¦ | ¦ | XXXX | - Length in inches, stated in 2 decimal place
format (Ex: 6" = 0600) |
||
| ¦ | ¦ | ¦ | ¦ | ¦ | Element Alloy | ||
| ¦ | ¦ | ¦ | ¦ | ¦ | XXX | - Use Code in Alloy Chart | |
| ¦ | ¦ | ¦ | ¦ | ¦ | ¦ | ER Probe Options | |
| ¦ | ¦ | ¦ | ¦ | ¦ | ¦ | AD | - No shield, Adjustable |
| ¦ | ¦ | ¦ | ¦ | ¦ | ¦ | ¦ | |
| HR | 2 | 2 | C3 | 0600 | 375 | AD | Example of Probe Ordering # |
For alloys, sizes, or other special requirements not listed, please contact our sales
department.
| Alloy Chart | ||
| Code | Description | UNS # |
| 375 | C1010 | G10100 |
| 538 | 5Cr 1/2mo | K42544 |
| 541 | 9Cr 1mo | K90941 |
| 186 | 410 S.S. | S41000 |
| 141 | 304 S.S. | S30400 |
| 159 | 316L S.S. | S31603 |
| A12 | C276 | N10276 |
| 602 | Alloy 625 | N06625 |
| 419 | CDA110 | C11000 |
| 434 | CDA443 | C44300 |
Not all alloys are available with all element 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
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