
Product Overview
The Bently Nevada 21000-28-05-00-073-03-02 is a robust aluminum proximity probe housing assembly designed for external probe mounting. It supports reverse-mount proximity probes and is certified for use in hazardous environments, complying with CSA Type 4 and API 670 standards.
Key Features
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Explosion-proof certified (Class I, II, III – Groups C to G)
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Constructed with aluminum housing and stainless-steel sleeve
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Compatible with multiple probe types including 3300 XL and NSv
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Customizable standoff adapter and probe penetration lengths
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Designed for harsh industrial and hazardous environments
Technical Specifications
| Parameter | Specification |
|---|---|
| Housing Body Material | Aluminum (with 304 stainless steel sleeve) |
| Compatible Probes | 3300 XL 8mm, 11mm, NSv series |
| Temperature Range | -51°C to +177°C (-60°F to +351°F) |
| CSA Rating | Explosion-proof, CSA Type 4 |
| Environmental Compliance | RoHS, API 670 compliant |
| Housing Body Diameter | 83.3 mm |
| Length (with max standoff) | Up to 742 mm (varies with C+D option) |
| Weight | 1.1 kg (2.4 lb) typical, without fittings |
| Mounting Thread Options | 3/4-14 NPT, BSP, UNF |
Applications
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Industrial machinery monitoring
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Oil & gas refineries
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Petrochemical plants
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Power generation facilities
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Hazardous and classified zones
Product Advantages
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CSA-certified explosion-proof solution for proximity probes
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Modular assembly allows for flexible probe configurations
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Withstands extreme temperatures and harsh environments
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Complies with international industry standards (API 670)
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Optional sleeve supports for enhanced vibration resistance
Frequently Asked Questions (FAQ)
Q1: What probe types are compatible with the 21000 housing?
A1: It supports 3300 XL 8mm, 11mm, and NSv reverse-mount proximity probes.
Q2: Is the 21000 housing explosion-proof?
A2: Yes, it is CSA-certified for use in Class I, II, and III hazardous areas.
Q3: Can I customize the probe length and adapter?
A3: Yes, the housing offers multiple options for standoff adapter and probe penetration lengths.
Q4: What is the temperature operating range?
A4: From -51°C to +177°C depending on the probe type.
Q5: Is the 21000 housing suitable for offshore use?
A5: Yes, its rugged construction and certifications make it suitable for offshore and hazardous applications.
Q6: What is the weight of the 21000 housing?
A6: Approximately 1.1 kg (2.4 lb) without fittings.
Q7: Does the 21000 come with fittings?
A7: Fittings are optional and can be selected during ordering (e.g., explosion-proof NPT fittings).
Q8: Can it be used with 3300 XL NSv probes in hazardous areas?
A8: Yes, including selectable hazardous area approval options.
Q9: What is the maximum length of the probe sleeve supported?
A9: Up to 742 mm for 1.0 m probe cables. Additional support is recommended for lengths over 304 mm.
Q10: Are longer sleeves stable under vibration?
A10: For sleeves over 304 mm (12 in), additional sleeve support is advised to minimize vibration.
Related Models (Same Series)
| Model Number | Description | Diameter | Weight |
|---|---|---|---|
| 21000-16-10-15-035-03-02 | XL 8mm probe, std config | 83.3 mm | 1.1 kg |
| 21000-28-05-00-073-03-02 | XL 8mm probe, selectable approvals | 83.3 mm | 1.1 kg |
| 21000-29-10-20-224-01-02 | XL 11mm probe, extended penetration | 83.3 mm | 1.1 kg |
| 21000-26-10-10-094-04-01 | NSv probe, standard config | 83.3 mm | 1.1 kg |
| CA21000-28-05-00-073-03-02 | Explosion-proof variant | 83.3 mm | 1.1 kg |
| 21000-00-00-00-000-00-01 | Housing only, no probe included | 83.3 mm | 1.1 kg |
Popular Bently Nevada Models
| Model Number | Description | Diameter | Weight |
|---|---|---|---|
| 330104-00-06-10-11-00 | 3300 XL 8 mm Proximity Probe | 8 mm | 0.1 kg |
| 330180-91-CN | 3300 XL Proximitor Sensor | 90 mm | 0.3 kg |
| 3300XL-NSv | Proximity Transducer for small targets | 5 mm | 0.1 kg |
| 3500/42M-01-00 | Proximitor Seismic Monitor | – | 0.9 kg |
| 3500/22M | Transient Data Interface (TDI) | – | 0.7 kg |
| 3500/15 | Power Supply Module | – | 0.5 kg |
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