21000-34-05-15-056-04-02 Proximity Probe Housing Assemblies

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	21000-34-05-15-056-04-02
Minimum Order Quantity:	1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 21000-34-05-15-056-04-02 is a specialized, ruggedized Proximity Probe Housing Assembly designed by Bently Nevada to provide superior mechanical protection and adjustable mounting for vibration sensors in heavy industrial environments. This specific assembly is engineered to house a 3300 XL 8mm probe, serving as a critical protective conduit that shields the sensitive eddy current sensor from external mechanical impact, high-pressure splashes, and environmental contaminants. As part of the Proximity Probe Housing Assemblies series, the 21000-34-05-15-056-04-02 allows for external probe adjustment, enabling maintenance teams to set the proper gap between the probe tip and the target shaft without disassembling the machine casing.

This model is configured with highly specific dimensions and options to meet rigorous engineering standards. The 21000-34-05-15-056-04-02 features a probe penetration depth of 5.6 inches (Option D) and a standoff adapter length of 1.5 inches (Option C), providing the necessary clearance for thick bearing housings. By utilizing Proximity Probe Housing Assemblies, operators can ensure that the internal 3300 XL 8mm probe remains perfectly aligned with the conductive target. The inclusion of a 3/4-14 NPT mounting thread and a 0.5-meter (20 in) probe cable length ensures that the assembly is ready for immediate integration into standard machinery protection systems.

Applications

The 21000-34-05-15-056-04-02 is primarily used in large rotating machinery such as steam turbines, centrifugal compressors, and large industrial motors where the probe must penetrate through thick outer casings or bearing housings. Its 5.6-inch penetration depth allows the 3300 XL 8mm probe to reach the internal shaft surface while the housing remains securely anchored to the external frame. This setup is essential for measuring radial vibration and axial position in equipment where the measurement point is not easily accessible from the machine’s exterior.

In the petrochemical and power generation industries, these Proximity Probe Housing Assemblies are deployed to facilitate probe replacement and gapping while the machine is offline, but without needing to open the primary seal of the bearing housing. By using the 21000-34-05-15-056-04-02, technicians can fine-tune the sensor gap externally using the standoff adapter and threaded adjustments. This significantly reduces maintenance time and enhances safety by minimizing exposure to internal machine components and potential lubricant leaks.

The assembly is also critical for monitoring assets located in hazardous zones where explosion-proof or intrinsically safe certifications are mandatory. Because the 21000-34-05-15-056-04-02 is designed to accommodate probes with various agency approvals, it serves as a robust interface in "Zone 1" or "Division 1" environments. It protects the electrical connections and the 3300 XL 8mm probe cable from mechanical wear and chemical attack, ensuring long-term signal stability for Keyphasor speed detection and machinery protection logic.

Specifications

Competitive Advantage

Enhanced Field Adjustability and Maintainability: The 21000-34-05-15-056-04-02 allows for precise external gapping of the 3300 XL 8mm probe. This means the probe can be moved closer to or further from the target shaft without disturbing the machine's internal environment. This "external-access" feature is a major competitive advantage, as it drastically lowers the risk of damaging the probe tip during installation and simplifies the calibration process.

Ruggedized Protection for Harsh Environments: These Proximity Probe Housing Assemblies act as a heavy-duty armor for the sensor. The stainless steel construction and NPT fittings provide an airtight and fluid-tight seal, protecting the internal cable and connector from oil, steam, and corrosive agents. This robust design extends the life of the probe and ensures that the 2 mm linear range and signal sensitivity remain unaffected by external environmental stress.

Customizable Configuration for Diverse Machinery: With specific options for penetration depth (5.6 in) and standoff length (1.5 in), the 21000-34-05-15-056-04-02 can be tailored to fit almost any bearing housing geometry. This flexibility allows engineering firms to standardize on Bently Nevada housing assemblies across an entire plant, ensuring a consistent and high-quality mounting solution for all critical vibration monitoring points.