Excellent PLC
Product Overview
The Bently Nevada 21000-28-05-20-035-04-02 is a robust proximity probe housing assembly constructed from aluminum, designed for external mounting of reverse-mount proximity probes. It provides environmental protection and secure probe installation for use in hazardous and industrial environments.
Applications
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Turbine and compressor monitoring
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Gearbox vibration measurements
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Pump and motor shaft alignment
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Hazardous environment condition monitoring
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Externally mounted API 670 compliant installations
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Oil & gas, petrochemical, and power industries
Advantages
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CSA-rated explosion-proof enclosure
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Complies with API 670 standards
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Durable aluminum housing with stainless steel sleeve
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Supports various Bently Nevada probes (8mm, 11mm, NSv)
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Customizable sleeve lengths and probe penetration options
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Flexible conduit fittings and mounting threads
Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | 21000-28-05-20-035-04-02 |
| Housing Material | Aluminum (body), 304 Stainless Steel (sleeve) |
| Probe Compatibility | 3300 XL 8mm probe (with hazardous area approvals) |
| Probe Cable Length | 0.5 m (20 in) |
| Standoff Adapter Length | 2.0 in (51 mm) |
| Probe Penetration Length | 3.5 in (89 mm) |
| Fitting Configuration | One 3/4-14 NPT plug, one reducer (3/4-14 to 1/2-14 NPT) |
| Mounting Thread | 1/2-14 BSP |
| Housing Body Diameter | 83.3 mm (3.28 in) |
| Weight | 1.1 kg (2.4 lb) |
| Temperature Range | -51°C to +177°C (-60°F to +351°F) |
| Enclosure Rating | CSA Type 4, Explosion Proof (Class I/II/III, Div 1 & 2) |
| Compliance | RoHS, CSA |
Frequently Asked Questions (FAQ)
Q1: What probe types are compatible with the 21000 housing?
A1: It supports 3300 XL 8mm, 3300 XL 11mm, and NSv reverse-mount proximity probes.
Q2: Is the housing explosion-proof?
A2: Yes, it is certified by CSA for explosion-proof applications in Class I, II, III hazardous areas.
Q3: Can the sleeve length be customized?
A3: Yes, custom sleeve lengths are available based on installation depth and vibration considerations.
Q4: What materials are used in the construction?
A4: The body is aluminum, and the probe sleeve is made from 304 stainless steel.
Q5: What is the temperature rating?
A5: It can operate and be stored in temperatures from -51°C to +177°C.
Q6: Does it meet API standards?
A6: Yes, the 21000 housing complies with API 670 for proximity probe installations.
Q7: Are conduit fittings included?
A7: Yes, depending on the order option, fittings such as NPT plugs and reducers are included.
Q8: Can I use it in nuclear applications?
A8: Nuclear-rated probe options are available but must be specified during ordering.
Q9: Is the probe included with the housing?
A9: It can be ordered with or without a probe, depending on the application needs.
Q10: What precautions are needed for long sleeves?
A10: Sleeves over 304 mm (12 in) require support to prevent resonance or vibration issues.
Related Models (Same Series or Function)
| Model Number | Description | Housing Material | Probe Type | Weight |
|---|---|---|---|---|
| 21000-16-10-15-035-03-02 | Proximity Housing with 8mm Probe | Aluminum | 3300 XL 8mm | 1.1 kg |
| 21000-28-10-20-037-04-02 | Proximity Housing with Hazardous Cert | Aluminum | 3300 XL 8mm Approved | 1.1 kg |
| 21000-30-05-15-045-01-02 | Proximity Housing for 11mm Probe | Aluminum | 3300 XL 11mm | 1.1 kg |
| 24701-26-10-15-045-03-02 | Stainless Housing with NSv Probe | Stainless Steel | 3300 XL NSv | 1.8 kg |
| CA21000-34-10-20-037-02-02 | Explosion-Proof Housing with 8mm CP | Aluminum (CA) | 3300 XL 8mm + CP | 1.1 kg |
| 164818-02-20-030-01-01-05 | Compact Probe Housing with 8mm Probe | Aluminum | 3300 XL 8mm | ~0.9 kg |
Popular Bently Nevada Models
| Model Number | Description | Application Type | Weight |
|---|---|---|---|
| 3500/42M-01-00 | Proximitor Seismic Monitor | Vibration Monitoring | 0.6 kg |
| 330104-00-06-10-11-00 | 3300 XL 8mm Proximity Probe | Shaft Vibration Sensing | 0.2 kg |
| 330180-91-CN | 3300 XL Proximitor Sensor | Machine Monitoring | 0.3 kg |
| 3500/22M-01-01-00 | Transient Data Interface Module | Data Acquisition | 0.5 kg |
| 330130-045-00-00 | Extension Cable | Probe Connection | 0.2 kg |
| 3500/20-01-01-00 | Rack Interface Module | System Configuration | 0.7 kg |
