Bently Nevada 330162-02-80-80-XX-XX-94-01-02 3300 Series Dual Triaxial HP Feedthrough

Description

To facilitate secure, high-integrity signal transmission through pressurized machinery casings, the Bently Nevada 330162-02-80-80-XX-XX-94-01-02 functions as a specialized dual triaxial high-pressure (HP) feedthrough designed for 3300 Series vibration monitoring systems. It isolates delicate sensor pathways while maintaining mechanical and chemical seals in harsh industrial environments. Engineered with robust physical armoring at the low-pressure end, this assembly mitigates external mechanical stress, ensuring stable, noise-free proximity probe signal transmission from inside high-pressure enclosures to external monitors.

Features

• Dual Triaxial Pathway: Enables dual-channel, noise-shielded proximity probe signal transmission through a single casing penetration.
• Low-Pressure Armor Protection: Features heavy-duty physical armor protection at the low-pressure exit side to resist abrasion and mechanical shear.
• Fluorocarbon Sealing (Option 94): Outfitted with high-grade fluorocarbon O-rings rated for long-term exposure to butane, fuel oil, natural gas, petroleum, and turbine oil.
• Shielded Coaxial Connectors: Built with a female miniature coaxial connector on the high-pressure side and a male miniature coaxial connector on the low-pressure side to eliminate signal attenuation.
• Extended Reach: Generous 8.0-meter cabling runs on both primary dimensions to support flexible signal routing through structural enclosures.

Applications

• High-pressure centrifugal compressors and expanders.
• Steam turbine and gas turbine casing signal penetrations.
• Hydrocarbon processing facilities and petrochemical refining units.
• Subsea pumping systems and hermetically sealed rotating machinery.

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility: This specific feedthrough variant is directly optimized for legacy 3300 and newer 3300 XL proximity sensor architectures requiring dual signal penetrations. Ensure that you match the miniature coaxial connectors precisely; adapting these to non-standard or alternative coaxial standards can degrade calibration curves and cause incorrect system alerts in the machinery protection monitors.

Application Pitfalls & Engineering Notes: The Option 94 fluorocarbon seals are designed to avoid elastomer degradation in hydrocarbon environments. However, in applications containing highly sour gas (high H2S concentration), verify material limits to prevent explosive decompression. Do not subject the armored or unarmored segments to twisting stresses during installation, as this can breach the internal signal shielding.

Commissioning & Wiring Tips: Keep the internal high-pressure female miniature connectors clean and free of moisture or lubricating grease before mating. Any contamination within the connection barrel can significantly impact probe impedance, leading to sensor bias voltage faults on your 3300 monitoring rack.

Installation Guidelines