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21000-34-00-15-050-04-02 | Bently Nevada 8 mm Probe Housing Assembly
Introduction to the 21000-34-00-15-050-04-02
When engineers need a robust solution for vibration monitoring in hazardous environments, the Bently Nevada 21000-34-00-15-050-04-02 proximity probe housing assembly delivers reliable performance. This model features an 8 mm probe with a connector protector and selectable hazardous area approvals. It is part of the 21000 series, designed for externally mounted proximity probes.
The housing assembly includes an aluminum body with a 304 stainless steel sleeve, ensuring durability in demanding industrial settings. With a typical weight of 1.1 kg (2.4 lb), it offers a sturdy yet manageable design for installation.

Key Features and Technical Specs of the 21000-34-00-15-050-04-02
- Probe Option: 3300 XL 8 mm probe with connector protector and selectable hazardous area approvals.
- Standoff Adapter: 1.5 in (15 option) for precise positioning.
- Probe Penetration: 5 in (050 option) for deep insertion.
- Fitting Option: One 3/4-14 NPT plug only (04 option).
- Mounting Thread: 3/4-14 NPT (02 option).
- Material: Aluminum body with 304 stainless steel sleeve.
- Probe Cable Length: 1.0 m.
- Maximum (C) + (D) Dimension: 32.9 in (83.5 cm).
A distinctive spec is the 8 mm probe with connector protector, which simplifies installation and protects the probe in harsh conditions. This design reduces the risk of damage during setup and operation.
Applications and Use Cases
This housing assembly is ideal for rotating machinery monitoring in oil and gas, petrochemical, and power generation industries. For example, it can monitor shaft vibration in compressors and turbines in hazardous areas. Its CSA Type 4 enclosure rating ensures protection against dust and water ingress, making it suitable for outdoor installations.

Installation and Setup
Mount the housing using the 3/4-14 NPT thread option. Ensure the standoff adapter is correctly positioned for optimal probe clearance. The probe cable length of 1.0 m allows flexible routing to the monitoring system. Always follow the manufacturer's manual for torque specifications and sealing requirements.
Maintenance and Reliability
Regularly inspect the O-rings and thread seal for wear to maintain the explosion-proof rating. The aluminum and stainless steel construction resists corrosion, extending service life. Periodic checks of the probe sleeve and connector protector help prevent unplanned downtime.
Compatibility and Integration
The 21000-34-00-15-050-04-02 integrates with Bently Nevada monitoring systems and is compatible with the 3300 XL probe series. It supports hazardous area approvals for intrinsically safe applications. The housing meets API 670 Standard for externally mounted proximity probes.
Common Questions About the 21000-34-00-15-050-04-02
Q: What is the maximum probe cable length?
A: The probe cable length is 1.0 m.
Q: Is this housing assembly CSA approved?
A: Yes, it is available with Canadian Standards Association (CSA) approvals for explosion-proof and intrinsically safe applications.
Q: What is the weight of the assembly?
A: The typical weight is 1.1 kg (2.4 lb) without fittings.
Q: What mounting thread option is available?
A: The -02 option provides a 3/4-14 NPT mounting thread.
Product Support and Availability
The 21000-34-00-15-050-04-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for assistance with ordering or technical questions. We provide original factory packing and a 12-month warranty.
| Part Number | 21000-34-00-15-050-04-02 |
| Condition | In Stock |
| Stock Status | In Stock (Ready to Ship) |
| Weight | 0.5 kg |
| Warranty | 12 Month |
Shipping
Shipping Port: Xiamen
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Warranty
All products come with a 1-year warranty against manufacturing defects. We guarantee 100% new and original products sourced directly from authorized manufacturers.
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