Bently Nevada 21000-28-05-00-130-04-02 Proximity Probe Housing Assembly

Description

The Bently Nevada 21000-28-05-00-130-04-02 is a 21000 Proximity Probe Housing Assembly designed for externally mounting proximity probes on critical rotating machinery. The assembly provides mechanical protection for the probe installation while allowing access for probe adjustment and replacement without removing major machine components. It uses a reverse-mounted proximity probe design and is developed for machinery protection applications requiring reliable shaft monitoring in accordance with API 670 requirements for externally mounted proximity probe housings. The 21000 housing assembly consists of an aluminum housing body, threaded conduit connection ports, probe sleeve, O-rings, thread seal, and related mounting components to provide a complete external probe installation solution. The integrated 3300 XL 8 mm proximity probe provides non-contact measurement capability when connected with compatible Bently Nevada extension cables and Proximitor® Sensors. The selectable hazardous-area approval option allows the probe to be applied in approved industrial environments where additional installation certification is required.

Parameter

Model: 21000-28-05-00-130-04-02 Proximity Probe Housing Assembly 
Probe with Connector: 28-3300 XL 8mm probe, selectable hazardous area approvals
Probe Cable Length: 05-0.5 m (20 in)
Standoff Adapter (Option C Dimension): 00-00 mm
Probe Penetration (Option D Dimension): 130-13.0 in
Fittings: 04-One 3/4-14 NPT plug only
Mounting Thread: 02-3/4-14 NPT

Frequently asked questions

Q:Can the 21000-28-05-00-130-04-02 be used in hazardous-area applications?
A:Yes. The installed 3300 XL 8 mm probe with selectable hazardous area approvals supports use in approved hazardous-area applications when installed according to the applicable system requirements and certification conditions.

Q:What advantages does the reverse-mounted design provide?
A:The reverse-mounted probe arrangement allows technicians to access the probe from outside the machine for adjustment or replacement. This reduces maintenance effort and avoids unnecessary machine disassembly during service operations.

Q:Why is the 13.0-inch probe penetration option used?
A:The 130 probe penetration option is selected for installations where the proximity probe needs to extend through a deeper machine casing or mounting structure to reach the measurement target. The correct penetration length helps maintain proper probe positioning and measurement performance.

Application areas

• Petrochemical Process Equipment – Used on critical rotating equipment such as process compressors, large pumps, and motor-driven machinery in petrochemical plants. The housing assembly provides a protected probe installation point while maintaining reliable signal measurement in continuous-duty applications.
• Power Generation Facilities – Applied to turbine generators, auxiliary turbines, and other large rotating machines where continuous condition monitoring is required. The assembly supports installation of proximity monitoring systems used for detecting shaft movement, vibration changes, and mechanical condition variations.
• Pipeline Compressor Stations – Used on natural gas compressor trains where rotating equipment operates continuously for gas transportation. The external housing design simplifies maintenance access while supporting reliable shaft monitoring through compatible Bently Nevada proximity transducer systems.

Picture/ Video Request

It's like having the store come to you!  

Request for Video/Picture