Product Overview
The Bently Nevada 21000-34-00-15-030-04-02 Proximity Probe Housing Assembly is a precision-engineered component designed for reliable vibration and position monitoring in rotating machinery. This housing assembly, part of the trusted 21000 series, provides robust protection for proximity probes in demanding industrial environments. With its aluminum body and 304 stainless steel sleeve, the 21000-34-00-15-030-04-02 delivers exceptional durability and corrosion resistance, ensuring long-term performance in harsh conditions.
This model includes a 3300 XL 8 mm probe with connector protector, a 1.5-inch standoff adapter, and a 3.0-inch probe penetration. The 3/4-14 NPT mounting thread and single 3/4-14 NPT plug fitting option simplify installation while maintaining a secure seal. Certified as CSA Type 4 enclosures and fully compliant with the API 670 Standard, this housing assembly is ideal for hazardous area applications where safety and reliability are non-negotiable.
Technical Specifications
| Parameter |
Value |
| Model |
21000-34-00-15-030-04-02 |
| Probe Option |
3300 XL 8 mm probe with connector protector |
| Probe Cable Length |
Not required |
| Standoff Adapter |
1.5 inches |
| Probe Penetration |
3.0 inches |
| Fitting Option |
One 3/4-14 NPT plug |
| Mounting Thread |
3/4-14 NPT |
| 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 (typical, without fittings) |
1.1 kg (2.4 lb) |
| Certifications |
CSA Type 4, API 670 compliant |
Key Features & Benefits
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Explosion-proof rating: CSA-certified explosion-proof for hazardous areas, ensuring safe operation in explosive environments.
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API 670 compliance: Fully compliant with the American Petroleum Institute's standard for externally mounted proximity probe housings.
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Durable construction: Aluminum body with 304 stainless steel sleeve provides excellent corrosion resistance and structural integrity.
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Flexible mounting: 3/4-14 NPT thread and optional standoff adapter allow versatile installation configurations.
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Complete assembly: Includes dome cover, threaded ports, probe sleeve, o-rings, reverse mount probe, thread seal, and optional conduit fittings.
Industry Applications
The 21000-34-00-15-030-04-02 Proximity Probe Housing Assembly is widely used in industries that rely on continuous monitoring of rotating equipment. Common applications include:
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Oil & Gas: Monitoring vibration and shaft position in compressors, turbines, and pumps to prevent catastrophic failures.
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Power Generation: Ensuring reliable operation of steam and gas turbines by providing accurate proximity measurements.
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Manufacturing: Protecting critical machinery such as motors and gearboxes in production lines, reducing unplanned downtime.
With its robust design and hazardous area approvals, this housing assembly is a dependable choice for any facility prioritizing asset health and operational safety.
Installation & Setup Guidance
Proper installation is critical for accurate proximity probe readings. Follow these steps for optimal performance:
- Verify that the mounting thread (3/4-14 NPT) matches your installation point. If the standoff adapter option is not -00, the mounting thread must be ordered as specified.
- Ensure the probe sleeve length and penetration (3.0 in) are correctly matched to your machine's dimensions. The maximum (C)+(D) dimension with visible probe P/N and S/N is 17.0 in (43.18 cm), and the absolute maximum is 32.9 in (83.5 cm).
- Use the included o-rings and thread seal to create a leak-proof, vibration-resistant connection.
- For hazardous area installations, confirm that the housing version and probe approvals match your site's classification requirements.
- Do not overtighten fittings; follow standard torque specifications to avoid damaging the aluminum body.
Maintenance & Reliability
Routine maintenance ensures long-term reliability and accurate measurements. Inspect the housing assembly periodically for signs of wear, corrosion, or loose fittings. The 304 stainless steel sleeve resists corrosion, but the aluminum body may require cleaning in harsh environments. Check the o-rings and thread seal for deterioration and replace them if necessary. Regular inspection of the probe and cable integrity will help prevent unexpected failures. By adhering to a simple maintenance schedule, you can extend the service life of the 21000-34-00-15-030-04-02 and avoid costly downtime.
Compatibility & Integration
This housing assembly is designed to work seamlessly with Bently Nevada 3300 XL 8 mm proximity probe systems. It is compatible with standard Bently Nevada monitoring equipment and can be integrated into existing vibration monitoring systems. The housing's CSA Type 4 rating and API 670 compliance ensure compatibility with industry-standard installation requirements. For specific integration questions, consult your system engineer or contact PLC Source PRO for expert guidance.
Selection Guide & Purchasing Advice
Before purchasing the 21000-34-00-15-030-04-02, verify that the suffix codes match your application requirements. Confirm the probe option, cable length, standoff adapter, penetration, fitting, and mounting thread options. If you need a different configuration, Bently Nevada offers various suffix codes to customize the housing. Ensure that the product is sourced from a reputable supplier to guarantee authenticity and warranty coverage. PLC Source PRO provides new, original products with a 12-month factory warranty, ensuring peace of mind for your investment.