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Bently Nevada 21000-00-00-00-041-04-02
Bently Nevada 21000-00-00-00-041-04-02
· Product image is representative; revision or series may vary. Contact us to request a specific version.

21000-00-00-00-041-04-02

Proximity Probe Housing Assemblies
In Stock
Ships by Friday, August 7
Fast Shipping Available

Product Information:

The 21000-00-00-00-041-04-02 is an external mounting protective housing assembly for the 21000 series eddy current probes manufactured by Bently Nevada. This assembly is a high-end mechanically integrated accessory fully compliant with API 670 standards, specifically designed for bearing housings in large steam turbines, centrifugal compressors, and centrifugal pumps.

Its core advantage lies in allowing field maintenance personnel to safely install or remove the probe from the casing directly from the outside of the machine, or fine-tune the linear clearance, without disassembling or opening the machine housing. This significantly improves the efficiency of daily inspections and spare parts replacement for critical measuring points on rotating machinery.

Because the assembly's original design fully supports international hazardous area explosion-proof standards such as ATEX, IECEx, and CSA, it is widely deployed in high-risk, high-explosive gas control areas such as petrochemical plants and large power plants, providing an indestructible physical and explosion-proof barrier for subsequent field engineering projects that require pre-installed eddy current probes.

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Technical specifications for 21000-00-00-00-041-04-02

  • Manufacturer:
    Bently Nevada
  • Product Category:
    TSI System
  • Spare Part Number:
    21000-00-00-00-41-04-02
  • Estimated shipping dimensions:
    67 x 1.5 x 10 cm
  • Weight:
    1.55 kg
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
  • Product Type:
    Proximity Probe Housing Assemblies
  • Category Series:
    21000, 24701, and 164818 Proximity Probe Housing Assemblies
  • Probe with Connector:
    Probe not required
  • Probe Cable Length:
    Probe cable not required
  • Standoff Adapter (Option C Dimension):
    No standoff adapter
  • Probe Penetration (Option D Dimension):
    4.1 in (104.14mm)
  • 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
  • Stock:
    100

Alternative Names

210000000000410402 21000 00 00 00 041 04 02 2I000-00-00-00-04I-04-02 21OOO-OO-OO-OO-O41-O4-O2 21000-00-00-00-041-0A-02 21000-00-00-00-041-04-01 21000-00-00-00-041-04-04 21OOO-OO-OO-OO-O41-O4-O1 21OOO-OO-OO-OO-O41-O4-O4 2I000-00-00-00-04I-04-01 2I000-00-00-00-04I-04-04 2I000-00-00-00-04I-04-CN 21OOO-OO-OO-OO-O41-O4-CN

Information

Overview Manuals Basic Info Instruction info Certification

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 21000-00-00-00-041-04-02 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 21000-00-00-00-041-04-02 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: 21000-00-00-00-041-04-02
  • 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
1. Compliant with industry-leading API 670 standards: This component is designed to fully comply with the American Petroleum Institute (API) Mechanical Protection Systems standards, particularly in terms of mechanical strength, leak-proof sealing, and maintenance-free design specifications for externally mounted probe housings.
2. Environmental rating: CSA Type 4/NEMA Type 4/IP66: This aluminum junction box is certified by the Canadian Standards Association (CSA) with a protection rating of Type 4/NEMA Type 4 (equivalent to IP66). It completely blocks strong winds, dust, high-pressure water jets, and large areas of oil mist, making it suitable for harsh outdoor environments or installation inside petrochemical plants.
3. Compliant with GE safety and environmental standards,CE marking certification: Compliant with EU electrical safety and electromagnetic compatibility (EMC) standards. Compliant with RoHS 2 environmental directive: Compliant with EU RoHS 2011/65/EU regulation, which restricts the use of hazardous substances in the equipment.

Technical notes

The Bentley Nevada 21000-00-00-00-041-04-02 is an API 670 compliant aluminum explosion-proof eddy current probe housing with a 3/4-14 NPT connector. Its 4.1-inch sleeve immersion depth is designed for external adjustment and protection of displacement sensors within rotating machinery.
  • Product Lifecycle Stage

    Active/Available from OEM

    As a trusted industrial supplier, Moore Automated provides high-quality Bently Nevada replacement modules and spare parts to support your automation systems. Our efficient solutions are designed to minimize unexpected downtime for our customers and ensure the smooth operation of your mission-critical businesses.

Ask our team:

  • What are the main engineering functions of the 21000-00-00-00-041-04-02 in an advanced rotating machinery protection architecture?
    The 21000-00-00-00-041-04-02 is an eddy current proximity probe assembly designed for high-precision, non-contact monitoring of shaft vibration, radial displacement, axial position, and mechanical runout. As a key sensing element in calibrating proximity sensor systems, it provides reliable dynamic shaft position data for machinery protection and predictive maintenance applications.
  • How does the 21000-00-00-00-041-04-02 utilize the principle of electromagnetic eddy currents to achieve superior displacement measurement accuracy?
    The 21000-00-00-00-041-04-02 operates through an advanced eddy current sensing mechanism that generates a high-frequency electromagnetic field at the probe tip. Variations in the probe-target gap alter the induced eddy currents on the conductive shaft surface, resulting in a proportional electrical output with excellent linearity, repeatability, and dynamic response characteristics.
  • What are the mechanical structure and installation characteristics of the 21000-00-00-00-041-04-02?
    The 21000-00-00-00-041-04-02 employs a precision-designed proximity probe structure, with an order configuration of 00-00-00-041-04-02. This structure is compatible with industrial installation methods while maintaining probe positioning accuracy, mechanical integrity, and stable sensing performance in high-vibration environments.
  • What cable and electrical interface characteristics are integrated into the 21000-00-00-00-041-04-02?
    The 21000-00-00-00-041-04-02 is equipped with a factory-predefined precision cable assembly designed to maintain controllable impedance, low signal attenuation, and stable electrical characteristics. This cable construction allows the probe to operate as part of a matched proximity sensor system, compatible with extension cables and signal conditioning electronics.
  • How does the 21000-00-00-00-041-04-02 maintain high signal integrity under harsh electromagnetic environment operating conditions?
    The 21000-00-00-00-041-04-02 employs shielded coaxial signal transmission technology optimized for electromagnetic compatibility (EMC). Its cable construction reduces the effects of electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring accurate transmission of high-frequency displacement signals in industrial environments.
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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.