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SKU: 330881-28-04-145-06-02

Bently Nevada 330881-28-04-145-06-02 PROXPAC XL Proximity Transducer

The Bently Nevada 330881-28-04-145-06-02 is a PROXPAC XL Proximity Transducer featuring a 145mm probe and 40mm standoff. This integrated vibration sensor provides reliable, non-contacting shaft measurements for critical rotating machinery in hazardous industrial environments.

Product Technical Description

The Bently Nevada 330881-28-04-145-06-02 is a specialized PROXPAC XL Proximity Transducer assembly that combines a 3300 XL Proximitor Sensor with a robust probe housing. This integrated solution simplifies the installation of proximity probes by providing a self-contained, environmental enclosure. It effectively measures non-contacting vibration and position by monitoring the gap between the probe tip and a rotating shaft, which is fundamental for ensuring the mechanical health of high-speed industrial assets.

Functional Features and Performance

Engineers utilize the PROXPAC XL system primarily because it streamlines the mounting process in complex machinery. This specific module features a 145mm probe length and a 40mm standoff, allowing for precise positioning even in deep-reach applications. The assembly incorporates a 3/4-14 NPT connection and a stainless steel reducer, ensuring a high-pressure seal and excellent corrosion resistance. By integrating the sensor electronics directly within the housing, the 330881-28-04-145-06-02 minimizes signal loss and protects sensitive components from moisture, oil, and debris.

Key Technical Specifications

  • Product Series: PROXPAC XL Proximity Transducer System
  • Standoff Length: 40 mm (1.6 inches)
  • Probe Length: 145 mm (approx. 5.7 inches)
  • Mounting Thread: 3/4-14 NPT with stainless steel reducer
  • Housing Material: Aluminum or Stainless Steel (configuration dependent)
  • Agency Approvals: Multiple hazardous area certifications (ATEX, CSA, IECEx)
  • Measurement Type: Radial vibration, axial position, and speed sensing

Primary Industrial Applications

The Bently Nevada 330881-28-04-145-06-02 plays a critical role in Turbomachinery Instrumentation (TSI) for the oil and gas, power generation, and chemical processing sectors. Maintenance teams typically install these transducers on steam turbines, large centrifugal pumps, and gas compressors. Because the unit provides real-time data for predictive maintenance, it allows operators to detect shaft misalignments or bearing wear before they lead to expensive downtime or equipment failure.