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21000-28-05-00-031-01-02

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The Bently Nevada 21000-28-05-00-031-01-02 Proximity Probe Housing Assembly is designed for externally mounted 3300 XL 8 mm probes with hazardous area approval options. It provides a CSA Type 4 certified, explosion-proof housing solution for industrial monitoring applications.
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Technical specifications for 21000-28-05-00-031-01-02

  • Manufacturer:
    Bently Nevada
  • Part Number:
    21000-28-05-00-031-01-02
  • Product Family:
    21000, 24701, and 164818 Proximity Probe Housing A
  • Probe with Connector:
    3300 XL 8mm probe, selectable hazardous area approvals
  • Probe Cable Length:
    0.5 m (20 in)
  • Standoff Adapter (Option C Dimension):
    No standoff adapter
  • Probe Penetration (Option D Dimension):
    3.1 in
  • Fittings:
    One 3/4-14 NPT explosion-proof fitting; One 3/4-14 NPT plug.
  • Mounting Thread:
    3/4-14 NPT
  • Weight:
    1.05 kg
  • Estimated shipping dimensions:
    30.5x8.5x8.5cm
  • Tariff Code:
    3926909090
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Safety & Compliance Installation & Integration Application

Features:

  • CSA Type 4 certified explosion-proof housing designed for hazardous area proximity probe applications.
  • Direct mounting design with 3/4-14 NPT thread and no standoff adapter for simplified installation.
  • Explosion-proof and standard NPT fittings ensure secure sealing and safe industrial connectivity.
The Bently Nevada 21000-28-05-00-031-01-02 Proximity Probe Housing Assembly is designed for external mounting of 3300 XL 8 mm proximity probes in industrial monitoring systems. It provides a stable structure for accurate probe positioning under operational conditions. The Bently Nevada 21000-28-05-00-031-01-02 supports selectable hazardous area approvals for different application requirements. Its design ensures reliable integration in vibration and condition monitoring systems. It is suitable for industrial environments requiring certified protection.

The installation structure of the Bently Nevada 21000-28-05-00-031-01-02 includes a 0.5 m (20 in) probe cable length and a 3.1 in probe penetration depth. It is configured without a standoff adapter, resulting in a direct mounting arrangement. The Bently Nevada 21000-28-05-00-031-01-02 uses a 3/4-14 NPT mounting thread for mechanical connection. The fitting set includes one explosion-proof fitting and one plug for controlled sealing. This configuration supports standardized industrial installation practices.

The Bently Nevada 21000-28-05-00-031-01-02 belongs to a housing family that includes 21000, 24701, and 164818 series designs. Compared with the 164818 compact housing intended for space-limited applications, the Bently Nevada 21000-28-05-00-031-01-02 is optimized for standard installation conditions. It is certified as a CSA Type 4 enclosure and complies with API 670 standards. Additional considerations include sleeve length management and vibration control for extended installations. The Bently Nevada 21000-28-05-00-031-01-02 supports long-term industrial monitoring reliability.

The 21000-28-05-00-031-01-02 Bently Nevada Proximity Probe Housing Assembly may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 21000-28-05-00-031-01-02 Proximity Probe Housing Assembly Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Bently Nevada 21000-28-05-00-031-01-02 Proximity Probe Housing Assembly Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 21000-28-05-00-031-01-02
  • Condition New Original ready stock
  • Product Family 21000-31-05-00-031-01-02,21000-16-05-00-031-01-02,21000-27-05-00-031-01-02
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Explosion-proof Standards: The component is designed to meet stringent industrial safety certifications and can act as a sensor protection barrier in high-risk flammable areas, ensuring the system meets explosion-proof safety compliance requirements.
  • Standard Adaptability: Structural parameters strictly adhere to international rotating machinery protection standards such as API 670, providing hardware support for enterprises to pass industry safety audits.
  • Physical Access Control: The robust housing not only protects the probe but also acts as a physical lock, preventing unauthorized personnel from touching or adjusting critical monitoring points.
  • Failure Risk Hedging: Extremely high mechanical reliability reduces the probability of false alarms or missed alarms in the protection system, significantly improving the functional safety level of the entire system.
  • Seamless System Integration: Standardized interface design ensures rapid integration of the probe housing into existing monitoring architectures without requiring large-scale structural modifications to the host device.
  • Flexible Position Compensation: During installation and upgrades, its adjustable structure allows technicians to precisely compensate for gaps in the field, simplifying integration in complex operating conditions.
  • Optimized Cabling Management: Pre-reserved cabling channels in the housing facilitate standardized cable routing, improving cleanliness and interference resistance during later system integration.
  • Low Downtime Deployment: The optimized mechanical structure supports rapid installation or upgrades within limited maintenance windows, shortening the system commissioning and operational cycle.
  • Thermal Power Generation: Used for monitoring axial displacement and radial vibration of steam turbine units to ensure continuous power output.
  • Petrochemical Industry: Installed on large centrifugal or reciprocating compressors to monitor bearing wear and rotor dynamics.
  • Natural Gas Transmission: Used in the power equipment of booster stations in long-distance pipelines for real-time health diagnosis of critical rotating components.
  • Heavy Metallurgy: Monitors the operating posture of large fans, pumps, and other high-load rotating equipment to prevent production line shutdowns caused by mechanical failures.
Description
The Bently Nevada 21000-28-05-00-031-01-02 Proximity Probe Housing Assembly is configured for external installation of 3300 XL 8 mm proximity probes with selectable hazardous area approvals. It is designed to support stable probe positioning in industrial monitoring environments. The Bently Nevada 21000-28-05-00-031-01-02 is suitable for intrinsically safe applications using CSA-certified housing structures.

Installation is defined by a 0.5 m (20 in) probe cable length and a probe penetration depth of 3.1 in. The design eliminates the standoff adapter, enabling a direct mounting arrangement. The Bently Nevada 21000-28-05-00-031-01-02 uses a standard 3/4-14 NPT mounting thread for mechanical integration.

The fitting configuration includes one 3/4-14 NPT explosion-proof fitting and one 3/4-14 NPT plug. These components support secure sealing and controlled conduit connection. The Bently Nevada 21000-28-05-00-031-01-02 is built for stable and safe electrical and mechanical interface management.

This housing belongs to a modular family that includes 21000 aluminum, 24701 stainless steel, and 164818 compact probe housing assemblies. Compared with the 164818 compact version designed for space-restricted installations, the Bently Nevada 21000-28-05-00-031-01-02 is intended for standard installation conditions. The system supports CSA Type 4 certification and full compliance with API 670 standards for externally mounted proximity probe housings.

Additional installation considerations include sleeve length matching the installation position, with probe lead length required to exceed sleeve length. For sleeves longer than 304 mm (12 inches), additional support is necessary to reduce vibration. Bently Nevada also provides probe support and oil seal solution part number 37948-01, along with custom support options.
Alternative Names
21000-28-05-00-031-01-01 21000-28-05-00-031-01-04 21000-28-05-00-031-00-02 21000-28-05-00-031-02-02 21000-28-05-00-031-03-02 21000-28-05-00-031-04-02
Technical notes
The Bently Nevada 21000-28-05-00-031-01-02 is configured for a 3300 XL 8 mm probe with a 0.5 m (20 in) cable length and a probe penetration of 3.1 in, without a standoff adapter. It uses a 3/4-14 NPT mounting thread and includes one 3/4-14 NPT explosion-proof fitting plus one 3/4-14 NPT plug. The Bently Nevada 21000-28-05-00-031-01-02 is part of CSA Type 4 certified housings for hazardous areas and complies with API 670 standards for externally mounted proximity probe housings.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why does the Bently Nevada 21000-28-05-00-031-01-02 include an explosion-proof fitting?
It is designed to support hazardous area applications. The fitting helps ensure safe conduit and enclosure sealing.
How is the Bently Nevada 21000-28-05-00-031-01-02 installed?
It uses a 3/4-14 NPT mounting thread for connection. This allows standard industrial installation compatibility.
What probe type is compatible with the Bently Nevada 21000-28-05-00-031-01-02?
It is compatible with 3300 XL 8 mm proximity probes. These probes support selectable hazardous area approvals.