Description
Designed for robust mechanical protection of proximity transducers in demanding turbomachinery environments, the Bently Nevada 24701-16-05-15-120-03-02 facilitates precise probe positioning and environmental isolation. This system functions as an external housing interface, allowing online adjustment and replacement of proximity probes without breaching the machine casing or exposing internal components to hostile operating conditions. Constructed with high-grade industrial fittings, it ensures compliance with API 670 standards for vibration and position monitoring systems.
Features
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Engineered Protection: Safeguards delicate proximity probes and extension cable connectors from physical impacts, moisture, and chemical exposure.
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External Adjustability: Enables external installation, depth setting, and servicing of internal transducers while machinery remains operational.
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Integrated Probe Support: Factory-configured to house standard 3300 XL 8 mm proximity probes.
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Versatile Cabling Port: Provided with a complete selection of grommets and reducers to accommodate diverse field wiring configurations.
Applications
- Steam turbine shaft radial and axial displacement monitoring.
- Centrifugal gas compressor casing and rotor dynamics analysis.
- Industrial pump, blower, and heavy fan bearing housings.
- Hydroelectric generator shaft vibration and alignment systems.
Technical Specifications
| Manufacturer |
Bently Nevada |
| Model Series |
24701 Proximity Probe Housing Assemblies |
| Full Part Number |
24701-16-05-15-120-03-02 |
| Probe Option |
3300 XL 8 mm probe (with connector) |
| Probe Cable Length |
0.5 meter (20 inches) |
| Standoff Adapter |
1.5 inches (38 mm) |
| Probe Penetration |
12.0 inches |
| Fittings Option |
One 3/4-14 NPT plug; one 3/4-14 to 1/2-14 NPT reducer; one cable seal grip with grommets (sizes: 1/8 to 3/16, 1/4 to 5/16, and 5/16 to 3/8-inch) |
| Mounting Thread |
3/4-14 NPT |
| Country of Origin |
United States (USA) |
| Shipping Weight (Calculated) |
3.0 kg (6.6 lbs) |
Installation Guidelines
CRITICAL WARNING
Ensure that the machine is completely shut down, isolated, and depressurized before starting installation. Do not attempt to adjust or insert probe housings while pressurized machinery is active, as blowout hazards could lead to severe physical injury or equipment destruction.
1
Apply high-temperature thread sealant to the 3/4-14 NPT mounting threads before engaging the port.
2
Thread the housing assembly into the machine port manually to ensure no cross-threading occurs, then torque to standard engineering specifications.
3
Set the probe penetration depth to 12.0 inches, taking account of the 1.5-inch standoff adapter offset. Use the calibrated gap voltage method via an external multimeter to verify target distance.
4
Select the appropriate grommet size from the provided fittings package (Option 03) matching your extension cable diameter to establish a robust environmental and tension seal.