The Bently Nevada 21000-16-10-00-103-04-02 is a specialized proximity probe housing assembly designed to provide robust mechanical and environmental protection for 3300 XL 8mm proximity probes. This assembly ensures the integrity of safety-critical vibration and position measurements in demanding industrial environments by shielding the sensor from process fluids, moisture, and mechanical damage.

Features

• Designed for 3300 XL 8mm proximity probes.
• Constructed with a 3/4-14 NPT mounting thread for secure installation.
• Includes a 1.0 m (39 in) probe cable configuration.
• Features a 10.3 in (261.62 mm) probe penetration depth.
• Equipped with one 3/4-14 NPT plug for conduit port sealing.
• CSA Type 4 enclosure rating for environmental protection.
• Explosion-proof design suitable for hazardous area applications (Class I, Div 1 & 2, Groups C and D).
• Compliant with API 670 standards for machinery protection systems.

Applications

• Oil and Gas: Monitoring of centrifugal and reciprocating compressors in refineries and liquefaction facilities.
• Electric Power: Protection of steam turbines and critical feedwater pumps in thermal and nuclear power plants.
• Petrochemicals: Integration with ethylene cracking and ammonia compressor systems.
• Industrial Manufacturing: Vibration monitoring for large blowers and pump sets in steel mills and water treatment facilities.

Technical Specifications

Installation Guidelines

• Ensure the probe lead is longer than the sleeve length during installation.
• For sleeve lengths exceeding 304 mm (12 inches), additional mechanical support is required to mitigate vibration-induced fatigue.
• Verify that all O-rings and thread seals are properly seated to maintain the environmental seal against moisture and contaminants.
• Always power down the associated monitoring system before installing or removing probe assemblies to prevent electrical faults.
• Ensure the conduit connection is properly sealed to maintain the explosion-proof integrity of the housing.

FAQ

What is the primary function of the 21000 series housing?

The 21000 housing provides essential mechanical and environmental protection for proximity probes, ensuring accurate data collection for radial vibration and axial position monitoring in rotating machinery.

Is this housing suitable for hazardous locations?

Yes, the 21000 aluminum housing is certified as explosion-proof for hazardous areas (Class I, Div 1 & 2, Groups C and D) and meets CSA Type 4 enclosure requirements.

What is required for probe penetrations less than 1.0 inch?

For applications requiring a probe penetration of less than 25 mm (1.0 in), a separate 21003-020 individual standoff adapter is typically required.