Product Overview
The Bently Nevada 21000-34-05-15-056-04-02 Proximity Probe Housing Assemblies are engineered to provide secure external mounting and reliable protection for proximity probe installations in demanding industrial environments. Designed for machinery condition monitoring systems, this housing assembly helps simplify probe installation, inspection, and maintenance while protecting critical sensing components from harsh operating conditions.
Manufactured with a durable aluminum housing and a corrosion-resistant stainless steel sleeve, this assembly is well suited for applications requiring dependable vibration and shaft position monitoring. Its rugged construction, flexible mounting configuration, and compatibility with 3300 XL 8 mm proximity probes make it a trusted solution for power generation, oil & gas, petrochemical, and heavy industrial facilities. The 21000 series is designed for hazardous-area applications and supports externally mounted proximity probe installations with explosion-proof configurations when properly specified.
Product Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 21000-34-05-15-056-04-02 |
| Product Type | Proximity Probe Housing Assemblies |
| Probe Type | 3300 XL 8 mm Reverse Mount Proximity Probe |
| Housing Material | Aluminum |
| Sleeve Material | 304 Stainless Steel |
| Probe Cable Length | 0.5 m (20 in) |
| Standoff Adapter Length | 1.5 in (38 mm) |
| Probe Penetration | 5.6 in |
| Fitting Option | One 3/4-14 NPT Plug |
| Mounting Thread | 3/4-14 NPT |
| Protection | Suitable for hazardous-area installations when properly configured |
| Dimensions | Approx. 677 × 83 × 83 mm |
| Weight | Approx. 1.1 kg |
Typical Industrial Applications
The 21000-34-05-15-056-04-02 housing assembly is widely used in rotating machinery monitoring systems where dependable probe protection and easy maintenance access are essential.
Typical applications include:
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Steam turbines
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Gas turbines
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Compressors
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Industrial pumps
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Electric motors
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Generators
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Petrochemical processing plants
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Oil and gas production facilities
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Power generation stations
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Mining and heavy manufacturing equipment
Common Technical Questions
1. What is the primary function of this housing assembly?
It securely mounts and protects proximity probes while allowing convenient external access for adjustment and maintenance.
2. Which probe is included in this configuration?
This configuration is designed for a 3300 XL 8 mm reverse mount proximity probe.
3. What material is used for the housing?
The housing is manufactured from aluminum with a 304 stainless steel probe sleeve for enhanced durability.
4. What is the probe cable length?
The supplied probe cable length is 0.5 meter (20 inches).
5. What is the probe penetration length?
This model provides a probe penetration depth of 5.6 inches.
6. What mounting thread does this assembly use?
It utilizes a 3/4-14 NPT mounting thread.
7. Can it be installed in hazardous environments?
Yes. The 21000 housing series is available in configurations intended for hazardous-area applications when installed according to applicable certifications and system requirements.
8. Does the assembly simplify maintenance?
Yes. External access allows technicians to inspect, adjust, or replace the probe without extensive machine disassembly.
9. Which industries commonly use this product?
It is frequently used in oil and gas, petrochemical, power generation, mining, and other heavy industrial applications.
10. Why is this model popular for machinery protection systems?
Its rugged construction, reliable performance, ease of maintenance, and compatibility with established Bently Nevada monitoring systems make it a dependable choice for critical rotating equipment.
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