21022-28-05-017-03 | Bently Nevada Dual Axial Probe Housing Assembly

Introduction to the 21022-28-05-017-03

When you need reliable axial thrust position monitoring, the 21022-28-05-017-03 from Bently Nevada offers a robust solution. This dual axial probe housing assembly mounts externally on the machine case, allowing both probes to observe the shaft end for axial thrust position movement. It meets the American Petroleum Institute's API 670 Standard for axial thrust position transducer housings, ensuring compliance with industry requirements.

Key Features & Technical Specs

• Probe Option: 28 = 3300 XL 8 mm probe with multiple approvals
• Probe Cable Length: 05 = 0.5 meter (20 inches)
• Probe Penetration: 017 = 1.7 inches
• Fittings Option: 03 = Two cable seal grips with grommets for cable sizes 1/8-in to 3/16-in, 1/4-in to 5/16-in, 5/16-in to 3/8-in; two 3/4-14 to 1/2-14 NPT reducers
• Housing Material: Aluminum alloy (sand cast, 0.3% copper free) with sleeves fabricated from 304 stainless steel
• Weight: 3.6 kg (8 lb)
• Mounting: Four standard machine screws on the machine case
• Threaded Holes: Two 3/4-in NPT threaded holes for probe installation

The 21022-28-05-017-03 uses a 3300 XL 8 mm probe with a 0.5 meter cable and 1.7 inch penetration. Its aluminum alloy housing and stainless steel sleeves provide durability in industrial environments. The fittings kit includes cable seal grips and NPT reducers, supplied separately for field installation.

Applications & Use Cases

This assembly is ideal for monitoring axial thrust position in rotating machinery such as turbines, compressors, and pumps. By mounting on the end nearest the thrust bearing, it captures precise shaft position data. The external mounting allows probe adjustments from outside the machine, reducing downtime during setup. It also protects probes and cables from dust, splashing liquid, and other environmental factors, making it suitable for harsh industrial settings.

Installation Guide

Mount the housing on the machine case using four standard machine screws. Insert the probes through the two 3/4-in NPT threaded holes into the sleeve/adapter assemblies. Adjust probe gaps via the removable cover on the enclosure. The fittings kit (cable seal grips and reducers) is supplied uninstalled; install them as needed for cable routing. Ensure proper alignment with the thrust bearing for accurate measurement.

Maintenance & Reliability

Regularly inspect the housing for signs of wear or environmental damage. Check cable seal grips and grommets for integrity to maintain protection against dust and moisture. The aluminum alloy and stainless steel construction resist corrosion, extending service life. Follow Bently Nevada's guidelines for periodic gap verification to ensure consistent performance.

Compatibility & Integration

The 21022-28-05-017-03 works with Bently Nevada 3300 XL 8 mm proximity probes and compatible monitoring systems. It integrates with standard vibration monitoring setups for axial thrust position measurement. Use the provided fittings to connect extension cables and probe leads. For detailed integration, refer to the official Bently Nevada documentation.

Troubleshooting & Common Issues

If readings are inconsistent, verify probe gap settings and cable connections. Check for physical damage to the housing or probes. Ensure the fittings are properly installed to prevent environmental contamination. For persistent issues, consult Bently Nevada's technical support or contact Petro Auto Tech for assistance.

FAQs about the 21022-28-05-017-03

What is the probe type used in the 21022-28-05-017-03?

The 21022-28-05-017-03 uses a 3300 XL 8 mm probe with multiple approvals.

What is the cable length for this assembly?

The probe cable length is 0.5 meter (20 inches).

Does the housing meet any industry standards?

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

What materials are used in the housing?

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

How is the assembly mounted?

It mounts on the machine case using four standard machine screws through two 3/4-in NPT threaded holes.

Product Support & Availability

The 21022-28-05-017-03 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and availability. We provide fast delivery and expert support for your industrial automation needs.