Bently Nevada 21000-00-00-40-040-02-02 Proximity Probe Housing Assemblies

Product information

The Bently Nevada 21000-00-00-40-040-02-02 is an external explosion-proof protective cover assembly for eddy current probes. This model is equipped with an extension sleeve adapter, making it particularly suitable for measuring points on rotating machinery with external insulation or thick mechanical housings.

Our Service For You
12 months warranty for all products
Original and new packing
3-5 working days shipping
High efficiency application
Good quality with long life span

Frequently Asked Questions (FAQ)

Q: Why does the original instruction manual advise against cutting the 4.0-inch sleeve after purchasing the probe?
A: Due to explosion-proof threading and sealing tests on the stainless steel extension tube, unauthorized cutting may compromise CSA/ATEX electrical safety clearance.

Q: When installing an eddy current probe using 21000-00-00-40-040-02-02, how should the field instrument engineer adjust the initial installation clearance of the probe?
A: By rotating the reverse-mount probe sleeve inside the fixed 4-inch extension and 4-inch intrusion housing, clearance adjustment is achieved, by securing with a locknut.

Q: If the two "-02"s in the model code 21000-00-00-40-040-02-02 are changed to "-01-01", what fundamental functional changes will occur?
A: Its explosion-proof certification and mounting threads will be completely changed. The first "-01" means no metal plug, and the second "-01" means that its mechanical mounting base thread will change from 3/4-14 NPT to 1/2-14 NPT thread.

Q: Does the valve body have a set screw of model 21000-00-00-40-040-02-02? What is its function?
A: Yes, the main valve body of this protective cover has a set screw. After the protective cover is screwed into place on the unit surface, it must be tightened to prevent long-term mechanical vibration from causing the entire protective cover to loosen and fall off.

Q: If we want to upgrade the 21000-00-00-40-040-02-02 internally to install an 11mm or NSv probe in the future, is its internal physical channel diameter wide enough?
A: Compatible with 3300 XL 8mm, 11mm, and NSv reverse-mount probes, its internal channel is designed for Bentley standard sleeves.

Application

Power Plants: Monitors shaft vibration and displacement of large steam turbine generators, feedwater pumps, and fans.

Oil Refineries: Monitors catalytic cracking units, wet gas compressors, and centrifugal compressor systems.

LNG Plants: Provides continuous monitoring for key refrigeration compressors and high-pressure pumps.

Large Steel Plants: Monitors bearing operation of blast furnace blowers and TRT systems.

Air Separation Plants: Monitors centrifugal air compressors supplying high-pressure gas for steel and chemical industries.

Discover other products

Disclaimer

Moore specializes in the supply of both new and surplus industrial components, backed by an ever-growing global sourcing network. Please note that any manufacturer names, trademarks, or brand logos featured on this site are the property of their respective owners and are used for identification purposes only. Their appearance does not indicate an official partnership, endorsement, or authorized distributorship. We operate as an independent provider of high-quality automation solutions.