Product Overview
Bently Nevada 21000-00-00-00-039-03-02 is a proximity probe housing assembly designed for industrial vibration monitoring systems where probe protection and mechanical installation flexibility are required. It is widely applied in turbines, compressors, pumps, and rotating machinery used in power plants, refineries, and heavy process industries.
This configuration supports installations where the probe and cable are not included, allowing system integrators to select external sensing components based on application requirements. It provides a stable mechanical interface for proximity measurement systems while maintaining environmental protection for the sensing point.
The housing ensures consistent probe positioning and mechanical isolation, improving measurement stability in vibration and shaft displacement monitoring applications.
Mechanical Configuration Breakdown
| Element |
Description |
| 21000 |
Proximity probe housing assembly series |
| 00 |
Probe not required |
| 00 |
Probe cable not required |
| 00 |
No standoff adapter |
| 039 |
3.9 in probe penetration |
| 03 |
NPT fittings with plugs, reducer, and cable sealing grips |
| 02 |
3/4-14 NPT mounting thread |
This structure defines a probe-less housing configuration intended for flexible sensor system integration.
Technical Specifications
| Parameter |
Specification |
| Model |
21000-00-00-00-039-03-02 |
| Brand |
Bently Nevada |
| Origin |
United States |
| Weight |
1.1 kg |
| Shipping Weight |
3 kg |
| Product Type |
Proximity probe housing assembly |
| Probe Requirement |
Not included |
| Cable Requirement |
Not included |
| Probe Penetration |
3.9 in |
| Mounting Thread |
3/4-14 NPT |
| Housing Material |
Aluminum body with 304 stainless steel sleeve |
| Fittings |
NPT plug, reducer, cable seal grip set |
| Application |
Vibration monitoring system housing |
Engineering Interpretation Notes
This housing assembly is designed for system-level flexibility, allowing engineers to integrate preferred probe and cable configurations based on machine monitoring requirements.
The aluminum body provides lightweight structural support, while the stainless steel sleeve enhances corrosion resistance in industrial environments.
Cable sealing grips ensure environmental protection across multiple cable diameter ranges, improving installation adaptability.
Field Application Notes
Where is this housing used?
It is used in turbines, compressors, pumps, and industrial rotating machinery.
Why is probe not included?
It allows flexible selection of probe types based on application design.
Can it be used outdoors?
Yes. It is designed for industrial environments with environmental sealing features.
What is the advantage of modular configuration?
It supports customized sensor integration for different monitoring architectures.
Installation & Commissioning Notes
Ensure correct NPT thread engagement to maintain housing sealing integrity.
Select appropriate cable seal grip size to match installed cable diameter.
Avoid mechanical stress on housing during probe alignment procedures.
Verify probe penetration alignment before final tightening of assembly.
Engineering & Operational Guidance
Use correct sealing components for environmental protection in outdoor installations.
Ensure proper grounding of metallic housing components in electrically noisy environments.
Inspect cable seal grips periodically to maintain moisture resistance.
Avoid over-tightening fittings to prevent housing deformation.