Bently Nevada 21000-34-05-00-039-04-02 Proximity Probe Housing Assembly

Technical Specifications Breakdown

Key parameters for the 21000-34-05-00-039-04-02 are listed below for quick reference:

Industry Applications

This housing assembly is designed for externally mounted proximity probes on critical rotating equipment such as steam turbines, centrifugal compressors, and large pumps. The 3.9-inch probe penetration allows installation through thick machine casings while maintaining the correct gap to the shaft. The 3300 XL 8 mm probe with connector protector suits environments where cable integrity is at risk. The CSA Type 4 enclosure rating and explosion-proof certification (when ordered with specific options) make it suitable for hazardous areas in oil refineries, chemical plants, and gas processing facilities.

Installation & Setup Guidance

Mount the housing using the 3/4-14 NPT threaded port. Ensure the probe tip is clean and free of debris before insertion. Adjust the probe penetration to achieve the recommended gap voltage per the 3300 XL probe specifications. Tighten the dome cover securely to maintain the enclosure seal. Use the provided 3/4-14 NPT plug to seal unused conduit ports. For hazardous area installations, verify that the housing is ordered with the correct explosion-proof option (E:00, E:01, E:02, or E:04) and that all connections comply with local codes.

Maintenance & Reliability

Periodically inspect the housing for signs of corrosion, especially in harsh environments. Check that the dome cover and conduit fittings remain tight. Verify that the probe cable is not chafed or pinched. The aluminum body with 304 stainless steel sleeve resists corrosion in most industrial settings. Replace O-rings if the seal is compromised. No internal adjustments are required; the assembly is designed for long-term, maintenance-free operation.

Robust Protection for Critical Vibration Monitoring

In rotating machinery, accurate vibration measurement depends on stable probe positioning. Harsh environments with moisture, debris, or explosive atmospheres can compromise readings and lead to costly downtime. The Bently Nevada 21000-34-05-00-039-04-02 Proximity Probe Housing Assembly provides a rugged, sealed enclosure that protects the 3300 XL 8 mm probe while maintaining precise gap settings. This assembly ensures reliable data from your machinery protection system.

Compatibility & Integration

This assembly is designed for use with Bently Nevada 3300 XL 8 mm proximity probes and compatible monitors such as the 3500 series. The 0.5 m probe cable length is suitable for close-coupled installations where the monitor or junction box is nearby. The housing meets API 670 Standard for externally mounted proximity probe housings, ensuring interchangeability in standard applications.

Selection Guide & Purchasing Advice

When selecting a housing assembly, confirm the required probe penetration, cable length, and fitting options. The 21000-34-05-00-039-04-02 is a specific configuration with a 0.5 m cable, no standoff adapter, 3.9 in penetration, and one 3/4-14 NPT plug. For different requirements, consult the Bently Nevada ordering guide. AutoDCSTech offers this assembly new and in original factory packing with a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.