Evaluating the Bently Nevada 21000-34-00-00-050-04-02 for Your Machinery Protection Needs
When selecting a proximity probe housing assembly for critical rotating machinery, the Bently Nevada 21000-34-00-00-050-04-02 stands out as a reliable choice. This component is designed to securely house a reverse mount proximity probe, providing accurate vibration and position measurements in demanding industrial environments. Understanding its specifications and how they match your application is essential for a successful installation.
Technical Specifications Breakdown
Key parameters for the 21000-34-00-00-050-04-02 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Model | 21000 - Proximity Probe Housing Assemblies |
| Probe Option | 34 = 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals |
| Probe Cable Length | 00 = Probe cable not required |
| Standoff Adapter | 00 = No adapter |
| Probe Penetration | 050 = 5.0 in |
| Fitting Option | 04 = One 3/4-14 NPT plug only |
| Mounting Thread Option | -02 = - 3/4-14 NPT |
| Material | 21000 Aluminum body with 304 stainless steel sleeve |
| Weight | 1.1 kg (2.4 lb) typical, without fittings |
Industry Applications and Operational ROI
The 3300 XL 8 mm probe with connector protector provides reliable shaft vibration monitoring, helping to prevent unplanned downtime. By choosing a pre-configured assembly like this one, you reduce installation complexity and ensure compatibility with existing Bently Nevada monitoring systems. The robust aluminum and stainless steel construction offers long service life, contributing to a lower total cost of ownership.
Installation and Setup Guidance
When installing the 21000-34-00-00-050-04-02, ensure the mounting surface is clean and flat. The 3/4-14 NPT mounting thread requires a compatible conduit or standoff. Use the provided NPT plug for unused ports to maintain enclosure integrity. For hazardous area installations, verify that the selected probe option (34) matches the area classification and that all connections are properly sealed. The probe cable is not included, so plan for a suitable cable assembly that meets the required length and approval.
Maintenance and Reliability
Periodically inspect the housing for signs of corrosion or damage, especially in harsh environments. Check that all O-rings and seals remain intact to maintain the CSA Type 4 enclosure rating. The 304 stainless steel sleeve resists corrosion, but regular visual checks are recommended. No internal disassembly is required for routine maintenance.
Compatibility and Integration
This housing is designed for use with Bently Nevada 3300 XL 8 mm proximity probes and is fully compliant with API 670 standards for externally mounted housings. The CSA approval ensures it meets North American hazardous location requirements.
Selection Guide and Purchasing Advice
When ordering, confirm that the probe penetration (5.0 in) and mounting thread (3/4-14 NPT) match your installation requirements. The 21000-34-00-00-050-04-02 is available new and in original factory packaging from AutoDCSTech, backed by a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.


Availability & Condition at AutoDCSTech
| Part Number | 21000-34-00-00-050-04-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
