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Bently Nevada 21000-28-05-00-133-04-02
Bently Nevada 21000-28-05-00-133-04-02
· Product image is representative; revision or series may vary. Contact us to request a specific version.

21000-28-05-00-133-04-02

Proximity Probe Housing Assemblies
In Stock
Ships by Saturday, July 25
Fast Shipping Available

Product Information:

The Bently Nevada 21000-28-05-00-133-04-02 is an all-metal industrial-grade proximity probe housing assembly featuring an aluminum housing and a 304 stainless steel sleeve.

This external housing kit allows maintenance teams to access, calibrate, or completely replace the internal proximity sensor from the outside without closing or removing the mechanical housing. It fully complies with the American Petroleum Institute (API) 670 Mechanical Protection Systems standard.

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Technical specifications for 21000-28-05-00-133-04-02

  • Manufacturer:
    Bently Nevada
  • Product Category:
    TSI System
  • Estimated shipping dimensions:
    84 x 1.5 x 12 cm
  • Weight:
    0.15 kg
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
  • 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):
    13.3 in (337.82 mm)
  • Fittings:
    One 3/4-14 NPT plug only
  • Mounting Thread:
    3/4-14 NPT
  • Operating and storage:
    -51°C to +177°C (-60°F to +351°F)
  • Material:
    Aluminum body with 304 stainless steel sleeve
  • Product Type:
    Proximity Probe Housing Assemblies
  • Category Series:
    21000, 24701, and 164818 Proximity Probe Housing Assemblies
  • Stock:
    100

Alternative Names

21000 28 05 00 133 04 02 21000-28-05-00-133-04-01 21000-28-05-00-133-04-04 2I000-28-05-00-I33-04-02 21OOO-28-O5-OO-133-O4-O2 21000-28-05-00-133-04-02 21000-28-05-00-133-01-02 21000-28-05-00-133-02-02 21000-28-05-00-133-03-02 21000-28-05-00-133-00-02 21000-28-05-00-133-02-01 21000-28-05-00-133-03-04 21000-28-05-00-133-04-CN 21000-28-05-00-133-04-RU

Information

Overview Manuals General Info Purchase Instructions Primary Industrial Applications

Features:

  • Proximity Probe Housing Assemblies
  • Aluminum body with 304 stainless steel sleeve
  • 21000, 24701, and 164818 Proximity Probe Housing Assemblies
The 21000 and 24701 Proximity Probe Housing Assemblies are available with Canadian Standards Association (CSA) approvals. They are rated explosion proof for hazardous areas. Bently Nevada offers a probe support and oil seal (part number 37948-01) for long sleeves that must go through an inner bearing housing.

To externally mount proximity probes, use one of these allmetal Proximity Probe Housing Assemblies: 21000 aluminum probe housing assembly; 24701 stainless steel probe housing assembly The 21000 and 24701 Proximity Probe Housing Assemblies consist of the following parts:A dome cover that screws into the body of the housing; Threaded ports for conduit connections; A probe sleeve of optional length; 0-rings; A reverse mount proximity probe; A thread seal; Optional conduit fittings; An optional standoff adapter.

The 21000-28-05-00-133-04-02 Bently Nevada Proximity Probe Housing Assemblies may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 21000-28-05-00-133-04-02 Proximity Probe Housing Assemblies 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.
  • Model: 21000-28-05-00-133-04-02
  • Warranty: One-year warranty
  • Condition: Brand new, original, in stock
  • Product Family: 21000, 24701, and 164818 Proximity Probe Housing Assemblies
Proximity Probe Housing Assemblies
21000-Axx-Bxx-Cxx-Dxxx-Exx-Fxx

A: Probe with Connector
00: Probe not required
14: 420 nuclear
16: 3300 XL 8mm probe
26: 3300 XL NSv probe
27: 3300 XL NSv probe, selectable hazardous area approvals
28: 3300 XL 8mm probe, selectable hazardous area approvals
29: 3300 XL 11mm probe
30: 3300 XL 11mm probe, selectable hazardous area approvals
31: 3300 XL NSv probe with connector protector
32: 3300 XL NSv probe with connector protector, selectable hazardous area approvals
33: 3300 XL 8mm probe with connector protector
34: 3300 XL 8mm probe with connector protector, selectable hazardous area approvals
35: 3300 XL 11mm probe with connector protector
36: 3300 XL 11mm probe with connector protector, selectable hazardous area approvals
37: 3300 XL 8mm probe, ETR, selectable hazardous area approvals (available for 21000 only)
 
B: Probe Cable Length
00: Probe cable not required
05: 0.5 m (20 in)
10: 1.0 m (39 in)
12: 12.0 in
18: 18.0 in
24: 24.0 in
30: 30.0 in
36: 36.0 in
 
C: Standoff Adapter (Option C Dimension)
15: Minimum length 1.5 in (38 mm)
75: Maximum length 7.5 in (191 mm)
Examples
1.5 in (38 mm) = 15
No standoff adapter = 00
 
D: Probe Penetration (Option D Dimension)
10: Minimum length 1.0 in (25.4 mm)
Examples
3.7 in (94 mm) = 037
22.4 in (569 mm) = 224
 
E: Fittings
00: Without fittings
01: One 3/4-14 NPT explosion-proof fitting; One 3/4-14 NPT plug
02: Two 3/4-14 NPT explosion-proof fittings
03:One 3/4-14 NPT plug; One 3/4-14 to 1/2-14 NPT reducer; One cable seal grip with grommets for; the following cable sizes:
• 1/8 to 3/16 inches
• 1/4 to 5/16 inches
• 5/16 to 3/8 inches
04: One 3/4-14 NPT plug only
 
F: Mounting Thread
01: As cast without threads
02: 3/4-14 NPT
04: 1/2-14 BSP
These long-arm external housing assemblies are typically mounted directly onto the housings of large-diameter hydrodynamic bearings in critical plant equipment, including: large steam and gas turbine housings (where thick insulation blankets require longer probe penetration depths); high-output centrifugal turbo compressors and process exhaust fans; heavy-duty utility boiler feed pumps and reduction gearboxes.

Technical notes

Bently Nevada's 21000-28-05-00-133-04-02 is an API 670 compliant 21000 Series aluminum alloy eddy current probe explosion-proof housing assembly designed for external mounting on industrial rotating machinery. According to its selection code in its technical specifications, this assembly features integrated hardware and the following core technical specifications: 28 indicates a 3300 XL 8mm reverse-mount probe (with connector protection and multiple explosion-proof certifications); 05 indicates a probe cable length of 0.5 meters (approximately 20 inches); 00 indicates a bracketless adapter without traditional threaded extensions; 133 indicates a probe penetration depth of 13.3 inches with a 304 stainless steel protective sleeve; and 04 indicates a 3/4-14 NPT plug at the cable management interface for sealing unused conduit openings. 02 indicates 3/4-14 NPT... The standard housing body uses a threaded connection; its aluminum alloy dome housing has a high protection rating of CSA 4 (IP66), which protects the internal non-contact displacement probe from damage by harsh external environments, prevents explosions and interference, and allows for convenient external position fine-tuning without stopping the machine.
  • Product Lifecycle Stage

    Active/Available from OEM

    Moore Automated provides high-quality Bently Nevada replacement modules and spare parts for industrial automation systems. Our reliable solutions help reduce unplanned downtime, improve maintenance efficiency, and ensure stable and continuous equipment operation.

Ask our team:

  • How can the 21000-28-05-00-133-04-02 achieve deterministic measurement of shaft displacement in rotating machinery using its precision eddy current sensor architecture and high-resolution electromagnetic sensing technology?
    The 21000-28-05-00-133-04-02 is a high-precision non-contact measurement system employing eddy current technology, providing stable and repeatable shaft displacement and vibration data for monitoring critical rotating equipment.
  • Why is the 21000-28-05-00-133-04-02 considered a mission-critical proximity sensor system for turbine, compressor, pump, and generator shaft monitoring applications?
    The 21000-28-05-00-133-04-02 provides high-resolution shaft vibration and displacement measurements, crucial for rotor dynamics analysis and mechanical protection in critical industrial environments.
  • How does the 21000-28-05-00-133-04-02 maintain excellent electromagnetic immunity and signal integrity under noisy industrial operating conditions?
    The 21000-28-05-00-133-04-02 employs precision shielding, impedance-controlled signal paths, and optimized probe geometry to minimize electromagnetic interference and ensure high-fidelity measurement output.
  • Which engineering parameters of the 21000-28-05-00-133-04-02, including probe diameter, linear range, sensitivity coefficient, calibration coefficient, and system configuration code, should be evaluated?
    Referring to the 21000-28-05-00-133-04-02 datasheet ensures proper installation, accurate calibration, and full compatibility with Proximitor® systems.
  • Why do engineers need to verify the compatibility of the 21000-28-05-00-133-04-02 with related Proximitor® sensors, extension cables, and monitoring modules before system commissioning?
    Proper system matching ensures that the 21000-28-05-00-133-04-02 maintains its factory-calibrated sensitivity, linearity, and specified measurement accuracy.
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Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.