Product Overview
The Bently Nevada 21000-34-00-30-050-04-02 Proximity Probe Housing Assembly is a precision-engineered component designed for reliable vibration monitoring in critical rotating machinery. This industrial automation module provides a robust enclosure for proximity probes, ensuring accurate measurements in demanding environments. Built with an aluminum body and a 304 stainless steel sleeve, the 21000-34-00-30-050-04-02 offers durability and corrosion resistance, making it suitable for long-term service in industrial plants.
This model includes a 3300 XL 8 mm probe with connector protector and selectable hazardous area approvals, making it versatile for various applications. The housing is rated as a CSA Type 4 enclosure and fully complies with the American Petroleum Institute's (API) 670 Standard for externally mounted proximity probe housings, ensuring industry-leading performance and safety.
Key Features & Benefits
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Explosion-proof rating: Certified by CSA for hazardous areas, providing safe operation in explosive environments.
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API 670 compliance: Meets strict industry standards for externally mounted proximity probe housings.
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Versatile mounting: Includes a 3/4-14 NPT mounting thread and a standoff adapter of 3.0 inches, with probe penetration of 5.0 inches.
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High-quality construction: Aluminum body with 304 stainless steel sleeve ensures longevity and resistance to harsh conditions.
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Complete assembly: Comes with dome cover, threaded ports, probe sleeve, O-rings, reverse mount probe, thread seal, and optional conduit fittings.
Technical Specifications
| Parameter |
Value |
| Model |
21000-34-00-30-050-04-02 |
| Probe Option |
3300 XL 8 mm probe with connector protector |
| Probe Cable Length |
Not required (00) |
| Standoff Adapter |
3.0 in (30) |
| Probe Penetration |
5.0 in (050) |
| Fitting Option |
One 3/4-14 NPT plug only (04) |
| Mounting Thread |
3/4-14 NPT (-02) |
| Material |
Aluminum body with 304 stainless steel sleeve |
| Probe Cable Length (included) |
1.0 m |
| Maximum (C)+(D) with visible probe (P/N and S/N) |
17.0 in (43.18 cm) |
| Maximum (C)+(D) Dimension |
32.9 in (83.5 cm) |
| Weight |
1.1 kg (2.4 lb) typical, without fittings |
Applications
The Bently Nevada 21000-34-00-30-050-04-02 Proximity Probe Housing Assembly is ideal for use in a wide range of industrial settings, including:
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Rotating machinery monitoring: Installed on pumps, compressors, turbines, and motors to measure shaft vibration and position.
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Hazardous area installations: Suitable for environments requiring explosion-proof enclosures, such as oil refineries, chemical plants, and gas processing facilities.
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API 670 compliant systems: Perfect for applications where adherence to API standards is mandatory, ensuring reliable and consistent performance.
In each scenario, the 21000-34-00-30-050-04-02 delivers accurate, stable readings, helping to prevent unplanned downtime and extend equipment life.
Installation & Setup
Proper installation is critical for optimal performance. Follow these guidelines:
- Mount the housing securely using the 3/4-14 NPT thread, ensuring a tight seal to prevent ingress of contaminants.
- Adjust the probe penetration to the specified 5.0 inches to achieve the correct gap between the probe tip and the target surface.
- Use the standoff adapter (3.0 in) when additional clearance is needed.
- Connect the probe cable (1.0 m) to the monitoring system, ensuring proper shielding and grounding.
- Verify that all fittings are tightened to manufacturer torque specifications.
Compatibility & Integration
This housing assembly is designed to work seamlessly with Bently Nevada monitoring systems and is compatible with 3300 XL 8 mm proximity probes. It can be integrated into existing vibration monitoring setups that require CSA Type 4 enclosures and API 670 compliance. The housing supports both intrinsically safe and explosion-proof configurations, making it a flexible choice for various system architectures.
Selection Guide
When selecting a replacement or new housing assembly, verify the following:
- Confirm the model number 21000-34-00-30-050-04-02 matches your system requirements.
- Check the probe type (3300 XL 8 mm) and cable length (1.0 m) for compatibility.
- Ensure the mounting thread (3/4-14 NPT) fits your installation point.
- Review the hazardous area classification to confirm the explosion-proof rating is appropriate.
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