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Technical specifications for 21000-32-05-00-038-03-02
Technical specifications for 21000-32-05-00-038-03-02
Manufacturer:
Bently Nevada
Product Category:
Machinery Monitoring System
Spare Part Number:
21000-32-05-00-038-03-02
Estimated shipping dimensions:
31x8.5x8.5cm
Weight:
1.4 kg
Tariff Code:
8537101190
Counliy of origin:
USA
Probe with Connector:
3300 XL NSv probe with connector protector, selectable hazardous area approvals
Probe Cable Length:
0.5 m (20 in)
Standoff Adapter:
No standoff adapter
Probe Penetration:
3.8 in (97 mm)
Fittings:
One 3/4-14 NPT plug One 3/4-14 to 1/2-14 NPT reducer One cable seal grip with grommets for the following cable sizes: • 1/8 to 3/16 inches • 1/4 to 5/16 inches • 5/16 to 3/8 inches
The 21000-32-05-00-038-03-02 is an Aluminum Proximity Probe Housing Assembly with Canadian Standards Association (CSA) approvals. It carries an explosion-proof rating for hazardous areas and applies to intrinsically safe installations. The housing functions as a certified CSA Type 4 enclosure and maintains full compliance with the American Petroleum Institute's (API) 670 Standard for externally mounted proximity probe housings.
Threaded ports for conduit connections
Optional conduit fittings
A dome cover that screws into the body of the housing
This specific configuration incorporates a 3300 XL 11 mm proximity probe with multiple hazardous area approvals, featuring a 0.5-meter (20-inch) probe cable length. The assembly features a no-standoff adapter configuration (0.0 inches) and provides a precise probe penetration depth of 3.8 inches. For mechanical installation, it utilizes a 3/4-14 NPT mechanical mounting thread and includes a fittings configuration of one 3/4-14 NPT elbow.
Built for heavy-duty industrial rotating machinery, this assembly excels in high-reliability environments where precise tracking of larger target movements or increased measuring ranges is required. The integrated 3300 XL 11 mm proximity probe provides a wider linear range compared to standard 8 mm sensors, making it applicable for monitoring larger shaft displacements, differential expansion, or axial thrust position in massive turbomachinery. The robust aluminum casing provides reliable protection for the sensor elements against heavy industrial dust, moisture ingress, and ambient temperature fluctuations, ensuring continuous operational uptime and preventing unpredicted machinery trips in critical process industries.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Oil & Gas Upstream & Midstream
Used on the bearing pedestals of natural gas pipeline compressors along long-distance pipelines, utilizing the 3.8-inch external sleeve to span the bearing housing and precisely measure radial shaft vibration.
Petrochemical & Refining Industry
Installed on high-pressure hydro-treatment feed pumps in hazardous areas of refineries to monitor axial shaft displacement (position changes), achieving automatic interlocking trip protection when exceeding safety thresholds.
Thermal Power Generation
Used on the turbine-side bearing pedestals of large steam turbine-generator sets to precisely monitor start-up shaft eccentricity and operational vibration through the machine casing.
Nuclear Power Plants
Used on reactor main feedwater pumps in nuclear power plants to ensure the internal probe stably monitors shaft status under harsh, high-temperature, high-pressure, and micro-radiation edge environments via the external housing.
Hydroelectric Power Generation
Installed on the upper and lower guide bearing housings of vertical hydro-generator units to measure turbine shaft runout (radial wobble), preventing mechanical rubbing caused by hydraulic imbalance.
Iron and Steel Metallurgy
Applied on the bearing supports of blast furnace blowers and Top Gas Recovery Turbine (TRT) plants, utilizing the dust-tight housing to protect the probe for measuring shaft speed and vibration in extremely dusty environments.
The sleeve length of this assembly depends directly on the location in which the probe and housing are installed, ensuring the probe lead remains longer than the sleeve. Since the configured penetration depth is 3.8 inches, it operates within vibration limits without auxiliary bracing.
For applications where alternative configurations require unsupported sleeve lengths exceeding 304 mm (12 inches), additional sleeve support is mandatory to mitigate vibration. For installations routing through an inner bearing housing, a Bently Nevada probe support and oil seal (Part Number 37948-01) or custom sleeve supports can be utilized.
The Bently Nevada 21000-32-05-00-038-03-02 is an API 670-compliant, industrial-grade aluminum explosion-proof probe housing assembly. Featuring a short 3.8-inch sleeve design, it provides rugged physical protection and enables online, non-shutdown probe maintenance in hazardous industrial environments.
What is the Bently Nevada 21000-32-05-00-038-03-02?
It is an aluminum proximity probe housing assembly manufactured by Bently Nevada with CSA explosion-proof approvals. It is designed to protect vibration sensors mounted externally on rotating machinery.
How to properly use a product like the 21000-32-05-00-038-03-02?
Thread or bolt it onto the machine's bearing housing, insert a matching proximity probe (e.g., 3300 XL 8mm) inside, and adjust the sleeve depth to precisely monitor shaft vibration, position, or speed.
Does the 21000-32-05-00-038-03-02 comply with industrial industry standards?
Yes. It fully complies with the API 670 standard for externally mounted proximity probe housings.
What is the ingress protection rating of the 21000-32-05-00-038-03-02?
It is certified as a CSA Type 4 enclosure, meaning it provides excellent protection against rain, dust, splashing water, and external ice formation, making it ideal for harsh outdoor environments.
What equipment does the 21000-32-05-00-038-03-02 typically protect?
It is typically used to protect proximity probes mounted on the bearing housings of critical rotating machinery like steam turbines, centrifugal compressors, industrial fans, high-pressure pumps, and gearboxes.
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