21022-28-05-010-00 | Bently Nevada Dual Axial Probe Housing Assembly

Introduction to the Bently Nevada 21022-28-05-010-00

When machinery uptime and predictive maintenance are critical, the 21022-28-05-010-00 from Bently Nevada provides a robust solution for axial thrust position measurement. This dual axial probe housing assembly integrates two proximity probes in a protective enclosure, enabling accurate monitoring of shaft end movement near the thrust bearing. Designed to meet API 670 standards, it offers reliable performance in demanding industrial environments.

Key Features and Technical Specifications

• Probe Option: 28 = 3300 XL 8 mm probe with multiple approvals
• Probe Cable Length: 05 = 0.5 meter (20 inches)
• Probe Penetration: 010 = 1.0 inch
• Fittings Option: 00 = Without fittings (supplied as a kit, 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: External mounting via four standard machine screws; probes mount through two 3/4-in NPT threaded holes

One distinctive feature is the external mounting design, which allows probe adjustments without opening the machine. This reduces downtime and simplifies maintenance, making it a practical choice for continuous operation.

Real-World Applications

In industries like oil and gas, power generation, and petrochemicals, the 21022-28-05-010-00 is used for axial thrust position monitoring in turbines, compressors, and pumps. Its compliance with API 670 ensures it meets industry standards for safety and reliability. For example, in a steam turbine application, the housing provides stable measurements even under high vibration conditions, helping prevent costly thrust bearing failures.

Installation and Setup Guide

Mount the enclosure on the machine case using four standard machine screws. Install the probes through the two 3/4-in NPT threaded holes using the sleeve/adapter assemblies. The removable cover provides easy access for setting probe gaps. Note that fittings are supplied as a separate kit and are not pre-installed, so plan for on-site assembly. Always follow Bently Nevada's installation manual for torque specifications and gap settings.

Maintenance and Reliability

Regular inspection of the housing and probe connections ensures long-term reliability. The aluminum alloy housing resists corrosion, while the stainless steel sleeves withstand harsh environments. Periodically check the probe gaps and cable integrity to maintain measurement accuracy. With proper care, the 21022-28-05-010-00 delivers consistent performance, reducing unplanned downtime and extending equipment life.

Compatibility and Integration

This housing assembly works with Bently Nevada 3300 XL 8 mm proximity probes and compatible extension cables. It integrates seamlessly with Bently Nevada monitoring systems for real-time data acquisition. For specific system compatibility, consult the official documentation or contact Petro Auto Tech.

Troubleshooting Common Issues

If probe readings are erratic, verify that the probe gaps are set correctly and that the cable connections are secure. Environmental factors like dust or liquid ingress can affect performance, so ensure the enclosure cover is properly sealed. For persistent issues, refer to the troubleshooting section of the Bently Nevada manual.

Frequently Asked Questions

Q: What is the probe cable length for the 21022-28-05-010-00?

A: The probe cable length is 0.5 meter (20 inches), as indicated by option 05.

Q: Does the housing come with fittings installed?

A: No, fittings are supplied as a separate kit and are not pre-installed when shipped.

Q: What is the weight of the 21022-28-05-010-00?

A: The housing weighs 3.6 kg (8 lb).

Q: Can this housing be used with 3300 XL 11 mm probes?

A: No, the 3300 XL 11 mm probe is not available with a 0.5 meter cable length, so use only 8 mm probes.

Q: How is the housing mounted?

A: It mounts externally using four standard machine screws, with probes installed through two 3/4-in NPT threaded holes.

Product Support and Availability

The Bently Nevada 21022-28-05-010-00 is available from Petro Auto Tech. Contact our team for current stock levels and lead times. We provide fast shipping and expert support to help you integrate this housing into your monitoring system.