21022-29-10-120-02 | Bently Nevada Dual Axial Probe Housing Assembly

Introduction to the 21022-29-10-120-02

When axial thrust position monitoring demands precision and reliability, the 21022-29-10-120-02 from Bently Nevada delivers a robust solution. This dual axial probe housing assembly integrates two proximity probes in a protective enclosure, meeting the American Petroleum Institute's API 670 Standard for axial thrust position transducer housings. Engineered for mounting on machine ends near thrust bearings, it enables accurate observation of shaft axial movement.

Key Features and Technical Specifications

The 21022-29-10-120-02 offers several distinctive features derived from its design:

• Probe option: 3300 XL 11 mm probe with connector (option 29).
• Probe cable length: 1.0 meter (39 inches), option 10.
• Probe penetration: 12 inches (option 120).
• Fittings: Two 3/4-14 NPT fittings and two 3/4-14 NPT plugs (option 02), supplied as a kit and not pre-installed.
• Housing material: Aluminum alloy (sand cast, 0.3% copper free) with 304 stainless steel sleeves.
• Weight: 3.6 kg (8 lb).
• Mounting: Uses four standard machine screws on the machine case.

A unique insight: the external mounting allows probe adjustments from outside the machine, while the removable cover provides access for setting probe gaps, simplifying maintenance.

Applications and Use Cases

In industrial rotating machinery such as turbines, compressors, and pumps, the 21022-29-10-120-02 is ideal for monitoring axial thrust position. It protects probes and cables from dust, splashing liquids, and other environmental factors, making it suitable for harsh environments. By meeting API 670 standards, it ensures compatibility with industry requirements for safety and performance.

Installation and Setup

Installing the 21022-29-10-120-02 involves mounting the enclosure on the machine case using four standard machine screws. The probes are installed into sleeve/adapter assemblies that fit into two 3/4-inch NPT threaded holes on the machine case. Fittings and plugs are supplied as a kit and must be installed by the user. The removable cover allows easy access for setting probe gaps after installation.

Maintenance and Reliability

Routine inspection of the housing and probe connections ensures long-term reliability. The aluminum alloy housing and stainless steel sleeves resist corrosion, while the sealed design minimizes contamination. Regular checks of the probe gaps and cable integrity help prevent measurement drift.

Compatibility and Integration

The 21022-29-10-120-02 is designed for use with Bently Nevada 3300 XL 11 mm proximity probes. It integrates seamlessly with Bently Nevada monitoring systems for axial thrust position measurement. The dual probe configuration provides redundancy for critical applications.

Frequently Asked Questions

What is the probe cable length for the 21022-29-10-120-02?

The probe cable length is 1.0 meter (39 inches), as specified by option 10.

Does the 21022-29-10-120-02 meet API 670 standards?

Yes, the dual axial position housing meets the American Petroleum Institute's API 670 Standard for axial thrust position transducer housings.

What material is the housing made of?

The housing is made of aluminum alloy (sand cast, 0.3% copper free) with sleeves fabricated from 304 stainless steel.

Are the fittings pre-installed on the housing?

No, the fittings (two 3/4-14 NPT fittings and two 3/4-14 NPT plugs) are supplied as a kit and are not installed when the housing is shipped.

What is the weight of the 21022-29-10-120-02?

The weight is 3.6 kg (8 lb).

Product Support and Availability

The 21022-29-10-120-02 is available from Petro Auto Tech. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.