21000-28-05-15-050-03-02 Bently Nevada Proximity Probe Housing Assembly

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Proximity Probe Housing Assembly

21000-28-05-15-050-03-02:

This is a 21000 Proximity Probe Housing Assembly manufactured by Bently Nevada (Baker Hughes). 21000-28-05-15-050-03-02 assembly features a 1.5-inch Standoff Adapter for thermal isolation or clearance, paired with a 5.0-inch probe penetration length. The housing provides a robust, weather-tight (Type 4) enclosure suitable for hazardous area installations. The assembly includes a 3/4-14 NPT mounting thread and a comprehensive conduit fitting kit (Option 03) for field wiring termination.

Parameters - 21000-28-05-15-050-03-02

Probe Type:3300 XL 8 mm (Reverse Mount)
Probe Cable Length:0.5 meter
Mounting Thread:3/4-14 NPT (Machined for 5-7 full threads for increased stiffness)
Housing Material:Aluminum (Body), 304 Stainless Steel (Sleeve)

Application Areas - 21000-28-05-15-050-03-02

Radial Vibration Monitoring: Steam turbines, gas turbines, centrifugal compressors, pumps, and generators.
Keyphasor (Phase Reference/Speed) Measurement
Industry Compliance & Environment: Machinery Protection Systems in the Oil & Gas, Petrochemical, and Power Generation industries.

Important Cautions - 21000-28-05-15-050-03-02

1. Low-Temperature Pressure Seal Risk:Exposing the 3300 XL probe to temperatures below -34°C (-30°F) may cause premature failure of its internal pressure seals.
2. Vibration Resonance (Sleeve Support): The total probe penetration (Option D) is 5.0 inches (127 mm) . This is well within the 12-inch (300 mm) safe unsupported length limit specified. No additional sleeve support (like Part 37948-01) is required for this assembly.
3. Conduit Fitting Compatibility: The selected Option 03 includes a cable seal grip with grommets sized for cable ODs of 1/8" to 3/8".