21000-16-10-00-067-04-02 Bently Nevada Aluminum Proximity Probe Housing

Product Overview

The Bently Nevada 21000-16-10-00-067-04-02 belongs to the versatile 21000 series of proximity probe housings. Engineered for demanding industrial environments, this assembly enables maintenance personnel to install and adjust proximity probes externally. This capability is critical for monitoring large rotating machinery where internal access is restricted or hazardous. By utilizing a high-quality aluminum enclosure, the assembly balances lightweight handling with the structural integrity required to withstand industrial rigors.

Technical Specifications

The following parameters define the specific configuration of the 21000-16-10-00-067-04-02 assembly:

• Model Number: 21000-16-10-00-067-04-02
• Probe Cable Length (16): 1.6 meters (5.2 feet)
• Sleeve Length Option (10): 1.0 inch (minimum increment)
• Total Sleeve Length (067): 6.7 inches
• Housing Material: Aluminum
• Conduit Connection: 3/4-14 NPT
• Probe Thread Type: 3/8-24 UNF-2A
• Mounting Thread: 3/4-14 NPT
• Product Weight: 1.08 kg
• Origin: USA
• System Category: Turbine Supervisory Instrumentation (TSI)

Functional and Structural Characteristics

The 21000 series housing assembly integrates several design features that improve machinery protection system uptime. For instance, the assembly includes a protective cap that prevents moisture, dust, and contaminants from reaching the probe connector. Furthermore, the internal sleeve mechanism allows for precise gapping of the probe relative to the shaft surface.

By choosing the aluminum housing option, operators ensure corrosion resistance while maintaining a cost-effective solution for non-corrosive atmospheres. The 3/4-14 NPT conduit entries accommodate standard industrial wiring practices, ensuring seamless integration with existing cable tray or conduit systems. Additionally, the assembly supports various probe lengths, providing flexibility across different machine casing thicknesses.

Installation and Maintenance Benefits

Implementing the 21000-16-10-00-067-04-02 housing assembly simplifies the lifecycle management of proximity transducers. Because the probe remains accessible from the outside of the machine, technicians can perform gapping adjustments while the machine is running (provided safety protocols are met). Consequently, this reduces the need for costly downtime during sensor calibration or troubleshooting.

During installation, the sleeve is adjusted to achieve the correct DC voltage gap, typically -10 VDC for standard 3300 XL systems. The 6.7-inch sleeve length provides ample reach through insulation and machine housings, ensuring the probe tip maintains the optimal distance from the target. Finally, the inclusion of robust O-rings and seals within the assembly prevents process fluids from leaking out of the machine casing, preserving both environmental safety and system pressure.

FAQs

Can I use this housing with 8 mm proximity probes?Yes, the 21000 series housing is specifically designed to accommodate standard Bently Nevada 3300 and 3300 XL 8 mm proximity probes with 3/8-24 threads.

What is the benefit of the aluminum housing over stainless steel?Aluminum housings are significantly lighter and more cost-effective. They are ideal for most standard industrial applications where extreme chemical corrosion is not a primary concern.

Does this assembly include the proximity probe?Typically, the housing assembly (21000) and the proximity probe (e.g., 330101) are ordered as separate items to allow for specific length and cable configurations, though they function as a single unit once installed.