Product Overview
When rotating machinery demands reliable vibration monitoring, the Bently Nevada 21000-34-00-00-065-04-02 Proximity Probe Housing Assembly delivers a robust solution. This industrial automation module is engineered to house a 3300 XL 8 mm proximity probe in demanding environments, ensuring accurate shaft vibration and position measurements. With its aluminum body and 304 stainless steel sleeve, the 21000-34-00-00-065-04-02 offers durability and corrosion resistance, making it suitable for continuous operation in process industries.
The 21000-34-00-00-065-04-02 is part of the 21000 series and is fully compliant with the American Petroleum Institute's API 670 standard for externally mounted proximity probe housings. It is certified as a CSA Type 4 enclosure, providing protection against water splashes and dust ingress. This housing is designed for hazardous areas and can be ordered with explosion-proof ratings when specified with the appropriate options.
Technical Specifications
| Parameter |
Value |
| Probe Option |
3300 XL 8 mm probe with connector protector, selectable hazardous area approvals |
| Probe Cable Length |
Not required (00) |
| Standoff Adapter |
No adapter (00) |
| Probe Penetration |
6.5 inches (065) |
| 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 |
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) |
These specifications are directly from the manufacturer's documentation and ensure you receive a genuine, correctly configured housing assembly.
Key Features & Benefits
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Explosion-proof capability: CSA-rated explosion-proof when ordered with E:00, E:01, E:02, or E:04 options.
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API 670 compliance: Meets industry standards for externally mounted proximity probe housings.
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CSA Type 4 enclosure: Provides protection against water and dust ingress.
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Hazardous area ready: Supports intrinsically safe applications with approved proximity probes.
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Durable construction: Aluminum body with 304 stainless steel sleeve ensures long service life.
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Flexible mounting: 3/4-14 NPT thread option for versatile installation.
Industry Applications
The Bently Nevada 21000-34-00-00-065-04-02 is widely used in industries where rotating equipment reliability is critical. Typical applications include:
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Oil & gas: Monitoring compressors, turbines, and pumps in hazardous areas.
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Power generation: Vibration monitoring on steam and gas turbines.
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Petrochemical: Ensuring safe operation of critical rotating machinery.
By providing accurate proximity sensing, this housing assembly helps prevent unplanned downtime and costly repairs, aligning with a cost-benefit approach that reduces maintenance expenses and extends equipment life.
Installation & Setup Guidance
When installing the 21000-34-00-00-065-04-02, ensure the mounting thread (3/4-14 NPT) is properly prepared and sealed to maintain enclosure integrity. The housing includes a dome cover that screws into the body, threaded ports for conduit connections, and O-rings for sealing. Follow these steps:
- Verify the probe penetration (6.5 inches) matches your application requirements.
- Use the provided 3/4-14 NPT plug for the fitting option unless you require additional conduit entries.
- Connect the probe cable (1.0 m) securely, ensuring no strain on the connector.
- For hazardous area installations, confirm the housing is rated for your specific area classification.
Maintenance & Reliability
The 21000-34-00-00-065-04-02 requires minimal maintenance due to its rugged build. Periodically inspect the O-rings and thread seals for wear, especially in vibrating environments. Check the dome cover tightness and ensure the conduit ports remain sealed. Regular inspection of the probe and cable connections helps maintain measurement accuracy. Given its robust design, this housing assembly offers extended service life, reducing total cost of ownership.
Buying Guide
Before purchasing, confirm your probe requirements and mounting configuration. The 21000-34-00-00-065-04-02 includes a 3300 XL 8 mm probe with connector protector, no cable, no adapter, and a single NPT plug. Ensure the mounting thread matches your installation. For hazardous area approvals, select the appropriate options. PLC Source PRO offers this new, original unit with a 12-month factory warranty. Order with confidence for your critical applications.