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Product Describe:
Proximity Probe Housing Assemblies
Probe Cable Length:20 in (0.5 m)
Standoff Adapter :6.5 in
Probe Penetration:11.5 in
Fittings:5/16 to 3/8 inches
Mounting Thread: 3/4-14 NPT
OverviewManualsCore functions and advantagesInternal Device Protection
The Bently Nevada 24701-28-05-65-105-03-02 is an all metal stainless steel eddy current probe housing assembly designed specifically for external probe installation. It simplifies the maintenance process of large rotating machinery by allowing for adjustment of probe clearance or replacement of probes without disassembling the machine.
Aluminum construction
Explosion-proof and CSA Type 4 rated
Compliant with API 670
The 21000, 24701, and 164818 Proximity Probe HousingAssemblies are available with Canadian StandardsAssociation (CSA) approvals. They are rated explosion prooffor hazardous areas.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Online adjustment and maintenance: Following the API 670 standard, technicians are allowed to adjust the probe gap or replace the probe from the outside while the machine is running without disassembling the bearing housing or shutting down.
Extreme environmental protection: Made of 303 stainless steel material with IP66/Type 4X protection level, it ensures that it will not corrode in acidic gas or high salt sea breeze environments.
High pressure sealing: The components are designed with sturdy pressure sealing rings to prevent the leakage of lubricating oil or process gases inside the unit.
The probe housing assembly of 24701-28-05-65-105-03-02 provides industrial grade all-round physical and electrical protection for the core sensor. Its high-strength 303 stainless steel body can effectively resist the erosion of highly corrosive atmospheres, mechanical collisions, and harsh weather conditions, ensuring the long-term stable operation of the internal probe. This component has excellent pressure sealing performance, which can withstand the internal pressure of the bearing box and prevent medium leakage
What specification of probe is built-in in this 24701-28-05-65-105-03-02 model?
This component has a built-in 3300 XL 8mm reverse installation probe (330105).
What is the difference between the 24701 series and the standard 21000 series?
Material upgrade: The main body of the 24701 series is made of 303 stainless steel, and the sleeve is made of 304 stainless steel; The 21000 series is usually made of aluminum. Environmental tolerance: 24701 is specifically designed for highly corrosive environments such as offshore platforms and acidic gas environments, with higher strength and sealing performance.
Do I need to replace the entire casing after the 24701-28-05-65-105-03-02 probe is damaged?
No need. 24701 is a modular design, only the corresponding 3300 XL 8mm reverse installation probe needs to be purchased.
Why is the total length (17 inches) of 24701-28-05-65-105-03-02 considered a
When the sum of the bracket (C) and penetration depth (D) exceeds 12 inches (305mm), the probe rod acts like a slender cantilever beam. When the machine is running at high speed, small mechanical vibrations may induce natural frequency resonance of the probe rod. This model has a total length of 17 inches, and it must be confirmed that a probe end support sleeve (Sleeve Support) is included with the shipment, otherwise the probe is prone to fatigue fracture and falling into the machine.
Can this 24701-28-05-65-105-03-02 model (Option 28) be directly installed in oil and gas explosion-proof areas?
Yes. Code 28 represents that the built-in probe of this component has Multiple approvals, covering mainstream Intrinsic Safety certifications such as ATEX, IECEx, CSA, etc. It is specifically designed for use in Zone 0, Zone 1, or Zone 2 environments with strict explosion-proof requirements in industries such as petroleum, natural gas, and chemical.
Does this component support 24701-28-05-65-105-03-02 3300 XL 5mm or 11mm probes?
Direct replacement is not supported. This model (Option 28) is designed specifically for 8mm reverse installation probes. The physical dimensions and linear range of 5mm or 11mm probes are different, and the threads and support structures inside the housing cannot be completely matched. If it is necessary to change the probe specifications, the entire housing component usually needs to be replaced.
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