21022-26-05-017-03 | Bently Nevada Dual Axial Probe Housing Assembly

Introduction to the Bently Nevada 21022-26-05-017-03

When axial thrust position monitoring demands robust protection, the 21022-26-05-017-03 from Bently Nevada delivers a durable dual probe housing solution. This assembly encloses two proximity probes in an externally mounted protective enclosure, designed for end-of-machine installation near the thrust bearing. It allows both probes to observe the shaft end for axial thrust position movement, helping prevent costly machine damage from thrust misalignment.

Built with an aluminum alloy housing (sand cast, 0.3% copper free) and 304 stainless steel sleeves, the 21022-26-05-017-03 resists corrosion and environmental wear. This extends service life and reduces replacement frequency, offering long-term cost savings for industrial operations.

Key Features and Technical Specs of the 21022-26-05-017-03

• Probe option: 3300 XL NSv probe (26)
• Probe cable length: 0.5 meter (20 inches) (05)
• Probe penetration: 1.7 inches (017)
• Fittings option: 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 (03)
• Weight: 3.6 kg (8 lb)
• Enclosure mounts using four standard machine screws
• Probes mount through two 3/4-in NPT threaded holes

The 21022-26-05-017-03 meets the American Petroleum Institute’s (API) 670 Standard for axial thrust position transducer housings. This compliance reduces the risk of non-conformance penalties and retrofit costs, making it a cost-effective choice for API-regulated facilities.

Applications and Use Cases for the 21022-26-05-017-03

This dual axial probe housing assembly is ideal for monitoring axial thrust position in turbines, compressors, and large pumps. For example, in a steam turbine application, the 21022-26-05-017-03 enables continuous shaft position tracking, preventing catastrophic thrust bearing failure. Its external mounting allows probe adjustments from outside the machine, minimizing downtime during maintenance. Additionally, the protective enclosure shields probes and cables from dust, splashing liquid, and other environmental factors, reducing unscheduled maintenance costs.

Installation and Setup of the 21022-26-05-017-03

Mount the enclosure on the machine case using four standard machine screws. Install the probes in sleeve/adapter assemblies directly onto the machine case through two 3/4-in NPT threaded holes. The fittings option includes two cable seal grips with grommets for various cable sizes and two 3/4-14 to 1/2-14 NPT reducers. Note that fittings are supplied as a kit and are not installed when the housing is shipped. A removable cover provides access for setting probe gaps, simplifying initial setup and future adjustments.

Maintenance and Reliability of the 21022-26-05-017-03

Regularly inspect the enclosure and cable seals for signs of wear or environmental damage. The aluminum alloy housing and stainless steel sleeves resist corrosion, reducing the need for frequent replacements. By maintaining the 21022-26-05-017-03, you extend its service life and avoid unexpected downtime costs. Always follow the manufacturer’s manual for inspection intervals and procedures.

Frequently Asked Questions about the 21022-26-05-017-03

Q: What is the weight of the 21022-26-05-017-03?

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

Q: What probe cable length is included?

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

Q: Does the housing meet API standards?

A: Yes, it meets the API 670 Standard for axial thrust position transducer housings.

Q: What materials are used in the housing?

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

Q: How is the enclosure mounted?

A: It mounts using four standard machine screws on the machine case.

Product Support and Availability

The 21022-26-05-017-03 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and delivery options. We are your trusted source for industrial automation parts.