Bently Nevada 330851-01-000-030-10-00-05 3300 XL 25 mm Proximity Probe
A 25 mm differential-expansion probe with 1 1/4-12 case thread, zero unthreaded length, a 3.0-inch case and a 1.0-metre unarmored lead.
Product Overview
330851-01-000-030-10-00-05 is a threaded 3300 XL 25 mm probe for turbine supervisory differential-expansion measurement.
The complete code selects the 1 1/4-12 case type, zero unthreaded length, a 3.0-inch overall case and a 1.0-metre probe length without armor.
The 05 ending identifies the multiple-approvals execution. The probe must be paired with the correct 25 mm Proximitor Sensor and system-length configuration.
Performance
Measure large axial movement
The 25 mm system provides the extended range required for differential expansion on turbine generators.
Operate in harsh turbine service
The probe family is designed for demanding differential-expansion environments.
Maintain system-length pairing
The 1.0-metre probe must remain associated with the approved sensor and cable arrangement.
Technical Details
| Manufacturer | Bently Nevada | Exact model | 330851-01-000-030-10-00-05 |
|---|---|---|---|
| Probe family | 3300 XL 25 mm | Case type | 1 1/4-12 thread |
| Unthreaded length | 0.0 in | Overall case length | 3.0 in |
| Probe length | 1.0 m (3.3 ft) | Armor option | No armor |
| Agency approval option | Multiple approvals | Measurement context | Turbine differential expansion |
About IndustryParts
https://www.industryparts.com/Differential-expansion spares stay tied to turbine geometry
IndustryParts retains the complete 25 mm probe code, target record and system-length evidence for selection review.
- •Exact submitted model retained
- •Installed-system evidence reviewed
- •Requested quantity linked to the enquiry
System Integration
Record the DE geometry
Capture probe mounting, target ramp or collar, cold gap and expected movement direction.
Verify the matched sensor
Confirm the Proximitor Sensor total-length option and monitor scaling.
Protect the full travel
Check mechanical clearance across the planned differential-expansion range.
Prove polarity and range
Commission with approved movement or simulation checks and verify channel direction.
Applications
Turbine differential expansion
Measuring relative axial growth between rotor and stator structures.
Extended linear-range service
Applying the 25 mm system where a standard proximity range is insufficient.
TSI replacement control
Maintaining probe case, target geometry, sensor pairing and channel scaling together.
FAQ
What turbine records should accompany a 330851-01-000-030-10-00-05 enquiry?
Send the complete probe and Proximitor labels, target geometry, cold gap, expected travel and monitor scaling.
Can a 5-metre 330851 probe replace 330851-01-000-030-10-00-05?
No. Probe length must match the approved Proximitor Sensor system length, and 5-metre probes are dedicated to the 5-metre sensor.
Why is the 3.0-inch case important for 330851-01-000-030-10-00-05?
It controls threaded reach and installed tip position relative to the differential-expansion target.
What should be checked over the full 330851-01-000-030-10-00-05 travel?
Verify target coverage, mechanical clearance, signal polarity and usable range across the expected rotor movement.
What closes a 330851-01-000-030-10-00-05 commissioning record?
Matched system labels, correct cold gap, verified direction, stable scaling and a passed channel test provide closure.
Request a model-specific quotation
Send the complete 330851-01-000-030-10-00-05 label, requested quantity, delivery destination and installed-system context.
