Bently Nevada 21000-16-05-00-043-04-02 Proximity Probe Housing Assembly

Technical Overview

The Bently Nevada 21000 series represents a versatile line of aluminum proximity probe housings designed to protect sensors from harsh industrial environments. These assemblies allow for the external mounting of proximity probes, facilitating easy access for adjustment or replacement without dismantling the monitored machinery. The 21000-16-05-00-043-04-02 configuration specifically supports 1/4-28 or 3/8-24 threaded probes, common in radial vibration and axial thrust measurements for motors, pumps, and fans.

Product Specifications

• Manufacturer: Bently Nevada (Baker Hughes)
• Model Series: 21000 Aluminum Proximity Probe Housing
• Part Number: 21000-16-05-00-043-04-02
• Module Type: External Probe Housing Assembly
• Material: Aluminum (Corrosion-resistant coating)
• Weight: 1.08 kg
• Dimensions: 8.5 cm x 8.5 cm x 30.5 cm
• HS Code: 8537101190
• Manufacturing Origin: USA
• Condition: 100% Brand New

Configuration Breakdown

The alphanumeric suffix for model 21000-16-05-00-043-04-02 indicates the following hardware specifications:

• -16: Probe Threaded Length (Explosion-proof or standard mounting requirements)
• -05: Standoff Adapter Length (Determines the distance the housing sits from the machine casing)
• -00: Probe Penetration (Internal depth adjustment setting)
• -043: Total Housing Length (Specified in increments to accommodate specific probe lengths)
• -04: Fitting Option (Inlet/Outlet thread types for conduit and cable protection)
• -02: Mounting Thread Option (The thread used to bolt the assembly to the machine)

Functional Advantages

The 21000 series housing assembly acts as a protective conduit and mounting platform for Bently Nevada 3300 XL 8mm and 5mm proximity probes. By using an external housing, technicians can perform “gap” adjustments—setting the DC voltage of the probe relative to the shaft—while the machine is running, provided safety protocols allow.

The rugged aluminum construction provides an IP-rated barrier against oil, moisture, and mechanical impact. The integrated standoff adapter ensures the probe tip reaches the target shaft precisely through the machine’s outer shell, maintaining the high-density signal integrity required for Turbine Supervisory Instrumentation (TSI).

Industrial Applications

These housing assemblies are widely utilized across heavy industries for critical asset protection:

• Petrochemical: Protecting sensors on high-speed centrifugal compressors.
• Power Generation: Housing probes for steam and gas turbine bearing monitoring.
• Water Treatment: Securing vibration sensors on large vertical pumps.
• Manufacturing: Monitoring cooling tower fan motor bearings.