Features:
- Threaded housing mounts through casing port; allows probe gap adjustment and replacement without opening the machine; reduces maintenance downtime.
- Meets American Petroleum Institute Standard 670; housing made of polyphenylene sulfide (PPS) with stainless steel components; excellent corrosion resistance.
- Includes 3300 XL 8mm probe with multiple hazardous area approvals, 0.5m cable, two 3/4‑14 NPT fittings, and 3/4‑14 NPT mounting thread.
The 31000-28-05-00-059-02-02 is designed for turbomachinery where access to the shaft for vibration monitoring is through the machine casing. Traditionally, if a proximity probe failed or required gap adjustment, the machine casing would need to be partially disassembled – a costly and time‑consuming process that can take days. This housing solves that problem. It mounts directly into a threaded port (3/4‑14 NPT) in the casing and provides external access to the probe and its extension cable. A technician can remove the probe, inspect it, adjust the gap by turning the housing, or replace a failed probe entirely without ever opening the machine. For critical turbomachinery such as steam turbines, centrifugal compressors, and gas turbines, this feature reduces maintenance downtime from days to hours.
The American Petroleum Institute’s API 670 Standard is the industry benchmark for machinery protection systems in oil, gas, and petrochemical facilities. It specifies rigorous requirements for proximity probe housings, including materials, installation, and performance. The 31000-28-05-00-059-02-02 is fully compliant with API 670 for externally mounted proximity probe housings. This compliance gives engineers confidence that the housing will perform reliably in demanding refinery and offshore applications. For plant operators subject to API compliance audits, using certified components simplifies the approval process.
The 31000-28-05-00-059-02-02 is delivered as a complete, ready‑to‑install assembly. It includes the 31000 PPS housing, a 3300 XL 8mm probe with multiple hazardous area approvals (option 28), a 0.5 meter probe cable (option 05), two 3/4‑14 NPT fittings with one plug (option 02), and a 3/4‑14 NPT mounting thread (option F = 02). The “28” probe option includes a 3300 XL 8mm probe with multiple approvals (e.g., ATEX, CSA, IECEx) for hazardous area installations. The housing is designed for radial vibration and Keyphasor measurements.
The 31000-28-05-00-059-02-02 Bently Nevada Proximity Probe Housing Assemblie may still be available for purchase and support from Apter Power beyond
End-Of-Life (EOL)by the manufacturer (OEM).
Bently Nevada 31000-28-05-00-059-02-02 Proximity Probe Housing Assemblie Manuals,
Datasheets,Drivers,Link
Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not
included with this equipment unless listed in the above stock item description.All prices are
shown in USD.
Bently Nevada 31000-28-05-00-059-02-02 Proximity Probe Housing Assemblie Specs
General
- Manufacturer GE /Bently Nevada
- Model 31000-28-05-00-059-02-02
- Condition New Original ready stock
- Product Family
125768-01,128229-01,133323-01
Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not
included with this equipment unless listed in the above stock item description.All prices are
shown in USD.
- Turbomachinery Diagnostics: Installed on high-speed critical assets, such as large steam turbines, gas turbines, axial air compressors, and high-pressure boiler feed pumps.
- Online Sensor Maintenance: Primarily used where shutdown costs are extreme. It enables mechanics to adjust probe gaps or swap out damaged sensors through the housing exterior without stopping the machine or breaching the oiled bearing casing.
- High-Debris & Corrosive Environments: Protects the delicate internal sensor cable from aggressive chemicals, high-velocity oil splashes, and external mechanical damage common in petrochemical plants, marine propulsion, and heavy utilities.
- No Native Software: The housing and probe unit require no firmware updates, software patches, or digital operating code.
- Downstream Updates: Firmware lifecycle tracking must instead be directed to the electronic hardware interpreting the analog voltage signal.
- Linear Positioning: Technicians adjust the physical gap by rotating the internal sleeve inside the housing body. This moves the 11 mm probe closer to or further from the target shaft.
- Voltage Mapping: A digital multimeter (DMM) is attached to the Proximitor sensor's buffered output. The sleeve is turned until the electrical gap registers the target bias voltage (typically -9.0 V DC to center the reading within the 11 mm probe’s linear range).
- Locking the Depth: The sleeve is secured using the dual external locking nuts on the housing body to prevent positional drift caused by structural machinery vibrations.