31000-00-00-15-051-01-02 Bently Nevada 31000 Series Proximity Probe Housing Assembly For Thick-walled Machine Casings Or Heavily Insulated Structures
The Bently Nevada 31000-00-00-15-051-01-02 housing assembly features an extended 5.1-inch penetration sleeve and an API 670-compliant, chemical-resistant PPS dome engineered specifically for thick-walled machine casings or heavily insulated structures. It eliminates the costly operational pain point of unexpected plant shutdowns by allowing maintenance technicians to safely adjust sensor gaps or hot-swap proximity probes externally while the machine is fully online. This deep-reaching configuration is the ideal choice for large industrial gas/steam turbines, high-capacity centrifugal compressors, and massive cooling tower fans where the sensor must breach thick structural framing to monitor the internal shaft.
Engineer's Note
"When dealing with heavy industrial steam turbines or massive process compressors that utilize thick external thermal blankets or double-shell casing construction, the 31000-00-00-15-051-01-02 is highly effective. Shorter standard sleeves like the 3.9-inch or 4.7-inch variants will often fail to penetrate deep enough to properly position the probe tip relative to the shaft. This 5.1-inch configuration provides the necessary reach while maintaining rigid structural stability against high internal machine pressures and vibrations."
Project Case Study
Deployment Site: Utility-Scale Power Generation Facility (Deployed: 2025)
Application: Radial shaft vibration tracking on a main high-pressure steam turbine.
Operational Environment: High radiating case temperatures, continuous 24/7 high-vibration exposure, and outdoor ambient climate shifts.
Performance Update (2026): Operates continuously with zero signal drift. The rugged PPS protective dome completely isolates the internal probe linkage from high ambient heat and moisture, preventing sensor degradation and eliminating moisture-related signal faults during seasonal temperature swings.
Custom Product FAQ
Q: Why choose the 051 sleeve length over the shorter 039 or 047 models?
A: The 051 suffix indicates an extended 5.1-inch penetration depth. You must select this model when your machinery has a thick casing wall, a double-wall shell design, or an integrated insulation layer that requires a longer sleeve to successfully reach the internal rotating shaft's target track.
Q: Can this housing be used in hazardous, explosion-proof environments?
A: No, the 31000 series designates a non-explosion-proof assembly. If your project site mandates explosive gas compliance (such as ATEX/IECEx Zone 1 or Class I Div 1), you must select the Bently Nevada 32000 series explosion-proof housing assemblies instead.
Q: Does this housing allow me to swap out a faulty probe while the machine is running?
A: Yes. The primary benefit of this assembly is online hot-swapping. Maintenance personnel can safely loosen the external seal and fine-tune the sensor's gap voltage--or completely replace a failed probe--while the machine remains fully operational, avoiding costly plant downtime.
Recommended Models
| 330106-05-30-20-02-CN |
330105-02-12-15-12-CN |
330104-00-13-10-02-05 |
| 330106-05-30-15-02-CN |
330105-02-12-10-02-CN |
330104-00-13-10-02-00 |
| 330106-05-30-15-02-00 |
330105-02-12-10-02-05 |
330104-00-13-10-01-CN |
| 330106-05-30-10-02-CN |
330105-02-12-10-02-00 |
330104-00-12-10-02-05 |
| 330106-05-30-10-02-05 |
330105-02-12-05-02-05 |
330104-00-12-10-02-00 |
| 330106-05-30-10-02-00 |
330105-00-05-10-02-00 |
330104-00-11-10-02-05 |
| 330106-05-30-05-02-CN |
330104-19-25-10-11-05 |
330104-00-11-05-02-00 |
| 330106-05-30-05-02-00 |
330104-15-23-50-02-00 |
330104-00-10-10-02-CN |
| 330106-00-04-10-02-00 |
330104-15-23-10-02-00 |
330104-00-10-10-02-05 |
| 330105-02-12-50-02-00 |
330104-13-20-50-02-00 |
330104-00-10-10-02-00 |
The Amikon Benefit: 100% Original | Factory Sealed | Lowest Lead Times
Get a Quote Now
Global Distribution Network
Amikon supplies industrial automation parts to more than 150 countries, covering a wide mix of regions.
The Americas, especially the USA and Canada, still rely quite a lot on replacement parts. Many sites there are older facilities like refineries or chemical plants.
Europe is similar, with countries such as Germany, UK, France and Italy. A lot of work there is about keeping existing systems running rather than new installations.
Asia-Pacific includes China, Japan, South Korea, Singapore and Australia. Industries there range from semiconductors to shipbuilding and mining, depending on the country.
Middle East and Africa, like UAE, Saudi Arabia, Qatar and South Africa, are more focused on energy-related operations, mainly oil, gas and power sectors.
Your message must be between 20-3,000 characters!
