Product Overview

The 21022-00-00-017-00 belongs to the 3300 XL Series. Its product type is a Dual Axial Probe Housing Assembly. The product classification is Sensor, Transducer & Probe. The current price for this item is ¥4,200 RMB, and the product gross weight is 3.60 kg.

Bently Nevada manufactures this housing assembly in the U.S.A. for axial thrust position monitoring. The probe option is 00, indicating that the probe is not included. Similarly, the probe cable length option is 00, meaning the probe cable is not required. The probe penetration option is 017, which equals 1.7 inches. Meanwhile, the fittings option is 00, indicating the housing ships without fittings. Therefore, this Dual Axial Probe Housing Assembly provides a robust enclosure for two proximity probes measuring shaft axial thrust position.

Technical Specifications

Purpose and Application

This housing assembly consists of two proximity probes installed in an externally mounted protective enclosure. It mounts on the end of a machine nearest the thrust bearing. Both probes observe the end of the shaft for axial thrust position movement. Consequently, this assembly enables redundant measurement of critical thrust position. The design meets the American Petroleum Institute (API) 670 Standard for axial thrust position transducer housings.

Mounting Configuration

The enclosure mounts on the machine case using four standard machine screws. The probes are mounted in sleeve and adapter assemblies. These assemblies install directly onto the machine case through two 3/4-inch NPT threaded holes. Thus, installation requires only standard tools and existing threaded ports.

Probe Penetration

The probe penetration option is 017, providing 1.7 inches of probe insertion depth. This depth places the probe tips at the optimal distance from the shaft target surface. For reference, the recommended gap setting for 3300 XL 11 mm probes is 2.5 mm (100 mils) from the target.

Housing Material

The housing consists of aluminum alloy (sand cast, 0.3% copper free). The sleeves are fabricated from 304 stainless steel. This material combination provides excellent corrosion resistance and mechanical strength. The copper-free aluminum alloy prevents galvanic corrosion in humid environments.

External Mounting Benefits

The external mounting allows probe adjustments from outside the machine. Therefore, maintenance personnel can set probe gaps without opening the machine case. The housing protects the proximity probes, probe leads, and extension cables. Protection includes dust, splashing liquid, and other environmental factors. A removable cover on the enclosure provides access for setting the probe gaps.

Fittings Information

The fittings option is 00, meaning the housing ships without fittings. Fittings are supplied as a separate kit. They are not installed when the housing is shipped. Therefore, you must order fittings separately if required for your installation.

Probe Compatibility

This housing accepts 3300 XL 11 mm Proximity Probes. Note that the 3300 XL 11 mm probe is not available with a 0.5 meter probe cable length. Order probes with appropriate cable lengths for your system configuration.

Installation Guide

Follow these steps to install your 21022-00-00-017-00 correctly.

1. Prepare the Machine Case: Verify the two 3/4-inch NPT threaded holes are clean and undamaged. Ensure the mounting surface is flat and clean.

2. Install the Sleeve Assemblies: Thread the sleeve and adapter assemblies into the 3/4-inch NPT holes. Tighten to the recommended torque specification.

3. Mount the Housing: Position the 21022-00-00-017-00 over the sleeve assemblies. Secure the housing using four standard machine screws.

4. Install the Probes: Insert two 3300 XL 11 mm proximity probes through the housing into the sleeves. The probe penetration is 1.7 inches.

5. Connect Extension Cables: Attach extension cables to the probe connectors. Use ClickLoc connectors for secure, vibration-resistant connections.

6. Set Probe Gaps: Remove the removable cover from the housing. Adjust each probe to the recommended 2.5 mm (100 mils) gap. Verify the DC voltage reads approximately -10 Vdc.

7. Replace the Cover: Secure the removable cover back onto the housing. Ensure the cover seals properly against environmental contaminants.

8. Connect to Proximitor Sensors: Route the extension cables to your Proximitor Sensors. Complete the wiring to your monitoring system.

Package List

• 1 x 21022-00-00-017-00 Dual Axial Probe Housing Assembly

• 1 x Aluminum alloy housing with removable cover

• 2 x 304 stainless steel sleeve and adapter assemblies

• 4 x Mounting screws for housing attachment

• 1 x Installation instruction manual

Note: Proximity probes, extension cables, Proximitor Sensors, and fittings are sold separately.

Frequently Asked Questions (FAQ)

1. What is the purpose of the 21022-00-00-017-00 housing assembly?
This housing holds two proximity probes for measuring axial thrust position on rotating machinery. It mounts externally near the thrust bearing, allowing both probes to observe the shaft end.

2. Does this housing meet any industry standards?
Yes, the 21022-00-00-017-00 meets the American Petroleum Institute (API) 670 Standard for axial thrust position transducer housings.

3. Why are the fittings not included with the housing?
The fittings option 00 means the housing ships without fittings. Fittings are supplied as a separate kit and are not installed at the factory. Order fittings separately based on your specific installation requirements.

4. What probes work with this housing assembly?
This housing accepts 3300 XL 11 mm Proximity Probes. However, the 11 mm probe is not available with a 0.5 meter cable length. Choose appropriate cable lengths from the standard options (1, 5, or 9 meters).

5. How do I adjust the probe gaps after installation?
Remove the removable cover on the housing exterior. This provides direct access for setting probe gaps. The external mounting design allows adjustments without opening the machine case.