Product Name: 3300 XL 25 mm proximity probe
Brand Name: Bently Nevada
Model Number: 330851-05-000-040-50-01-05
Place of Origin: United States
Warranty: 12 Months
Whatsapp：+86 18020776782
Email：[email protected]
overview
| Product Name | 3300 XL 25 mm proximity probe |
| Brand Name | Bently Nevada |
| Model Number | 330851-05-000-040-50-01-05 |
| Place of Origin | USA |
| Warranty | 12 months |
| Payment Methods | T/T |
| Shipment | DHL/UPS/EMS/Fedex... |
The Bently Nevada 330851-05-000-040-50-01-05 3300 XL 25 mm Proximity Transducer System is a high-precision vibration and displacement monitoring solution designed for medium to large steam turbine applications. It belongs to the 3300 XL series and includes a 25 mm proximity probe, extension cable, and a Proximitor sensor. The system is specifically engineered to measure differential expansion between rotor and stator components caused by thermal effects, ensuring safe and stable turbine operation. Built with industrial-grade materials such as PEEK probe tip and AISI 304 stainless steel housing, it provides long-term durability and stable performance in harsh operating environments.
Measures shaft vibration and radial displacement in steam turbines
Detects rotor-to-stator (casing) differential expansion due to thermal effects
Provides accurate input for machinery protection and monitoring systems
Supports condition monitoring and predictive maintenance programs
Enables real-time evaluation of turbine mechanical behavior under load
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Jim Pei |
| Product Name | Bently Nevada 330851-05-000-040-50-01-05 3300 XL 25 mm proximity probe |
| Manufacturer | Bently Nevada |
| Product Type | 3300 XL 25 mm proximity probe |
| Part Number | 330851-05-000-040-50-01-05 |
| Dimensions | 22.5x21x6cm |
| Weight | 1.5kg |
| Place of shipment | Xiamen, China |
| Country of origin | USA |
| Condition | New & Original in Factory Packing |
| Probe dc Resistance | 7.5 ± 0.8 Ω |
| Probe Tip Material | Polyetheretherketone (PEEK) |
| Probe Case Material | AISI 304 stainless steel (SST） |
| Probe adapter vertical adjustment | 25.4 mm (1.00 in) total travel |
| Probe and Extension Cable Armor (optional) | Flexible AISI 302 SST with PFA outer jacket |
| Operating and Storage Temperature | -35°C to +200°C (-31°F to +392°F) |
| Short Term Operating and Storage Temperature | +250 °C (482 °F) max for less than 24 hours |
| Probe Case Type Option | 1 ½ - 12 thread |
| Unthreaded Length Option | 00 mm |
| Overall Case Length Option | 40 mm |
| Total Length Option | 5.0 metres (16.4 feet) |
| Armor Option | with SST Armo |
| 05 | Multiple Approvals |
The Bently Nevada 330851-05-000-040-50-01-05 3300 XL 25 mm Proximity System includes a probe, extension cable, and Proximitor sensor as a complete monitoring system. It provides an output sensitivity of 0.787 V/mm (20 mV/mil) with a linear measurement range of 12.7 mm (500 mils) for accurate displacement monitoring. The probe has a DC resistance of 7.5 ± 0.8 Ω and uses a PEEK (Polyetheretherketone) tip for high wear resistance, combined with an AISI 304 stainless steel housing for durability. It features a 1.5-12 mounting thread, 25.4 mm (1.00 in) vertical adjustment, and a 5.0-meter (16.4 feet) cable length. Optional armor is available using flexible AISI 302 stainless steel with a PFA jacket for enhanced protection. The system has a 40 mm housing length, operates from -35°C to +200°C, and can withstand short-term temperatures up to 250°C (<24 hours). It weighs 1.5 kg, supports multiple certifications, and is manufactured in the USA and shipped from Xiamen, China.
The Bently Nevada 330851-05-000-040-50-01-05 3300 XL system delivers highly accurate and stable vibration measurement with a linear sensitivity of 0.787 V/mm, ensuring precise detection of turbine shaft movement and thermal expansion effects. Its wide measurement range of 12.7 mm allows effective monitoring of large mechanical displacement in steam turbines.
The system maintains reliable performance under extreme conditions, operating from -35°C to +200°C, with short-term tolerance up to 250°C, making it suitable for high-temperature turbine environments. The use of PEEK probe tips and stainless steel construction ensures excellent resistance to wear, corrosion, and mechanical stress. With optional armored cabling and a low-noise signal design, it provides stable long-distance signal transmission and high measurement accuracy for continuous industrial operation.
Q1: What is the main application of the Bently Nevada 330851-05-000-040-50-01-05 3300 XL 25 mm Proximity System?
The 330851-05-000-040-50-01-05 Proximity System is primarily used for measuring rotor vibration and thermal differential expansion in medium and large steam turbines.
Q2: How does the 330851-05-000-040-50-01-05 3300 XL system measure turbine expansion?
The 330851-05-000-040-50-01-05 3300 XL system detects relative displacement between rotor and stator components, allowing precise monitoring of thermal expansion effects in turbines.
Q3: What makes the Bently Nevada 330851-05-000-040-50-01-05 suitable for harsh environments?
The 330851-05-000-040-50-01-05 uses PEEK probe tips, stainless steel housing, and optional armored cables, ensuring durability under high temperature and mechanical stress conditions.
Q4: What is the measurement range of the 330851-05-000-040-50-01-05 3300 XL system?
The 330851-05-000-040-50-01-05 has a linear measurement range of 12.7 mm (500 mils), suitable for large displacement monitoring in turbine systems.
Q5: Can the Bently Nevada 330851-05-000-040-50-01-05 operate in high-temperature conditions?
Yes, the 330851-05-000-040-50-01-05 operates reliably from -35°C to +200°C and can tolerate short-term exposure up to 250°C.
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