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      Bently Nevada 21000-34-05-00-040-03-02
      Bently Nevada 21000-34-05-00-040-03-02
      · Product image is representative; revision or series may vary. Contact us to request a specific version.
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      21000-34-05-00-040-03-02

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

      Product Information:

      The 21000-34-05-00-040-03-02 is an external mounting protective cover assembly for the 21000 series metal eddy current probes manufactured by Bently Nevada. This assembly is a complete mechanically integrated hardware package, fully compliant with API 670 standards, and specifically designed for the bearing housing surfaces of large steam turbines, centrifugal compressors, and various high-pressure industrial pumps.

      Its core design philosophy is to enable field maintenance personnel to safely perform clearance calibration, disassembly, cleaning, or complete replacement of internal probes directly from outside the machine without stopping machine operation or disassembling the machine housing, thus greatly simplifying the operation and maintenance process for daily dynamic monitoring of rotating machinery.

      In actual industrial operation, this external protective cover assembly plays a crucial role in providing reliable mechanical and electrical protection. Its housing features an IP66 hermetic seal design, effectively preventing high concentrations of industrial dust, splashes, salt spray, and highly corrosive gases from penetrating and corroding the fragile internal coaxial joints. Simultaneously, its robust integral structure perfectly withstands the high pressures of internal machining, effectively preventing lubricant leakage from the bearing housing.

      Warranty Policy
      We provide 1-year warranty for all remaining parts.
      The warranty period is 1-year warranty from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      Return Notice
      The warranty period is 1-year warranty from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
      In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
      Shipping Methods
      Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
      Parts Availability
      Moore Automated offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
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      Technical specifications for 21000-34-05-00-040-03-02

      • Manufacturer:
        Bently Nevada
      • Product Category:
        TSI System
      • Estimated shipping dimensions:
        100 x 1.5 x 10 cm
      • Weight:
        1.88 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:
        3300 XL 8mm probe with connector protector, 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):
        4.0 in (101.6 mm)
      • Fittings:
        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
      • 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
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      Alternative Names

      210003405000400302 21000 34 05 00 040 03 02 2I000-34-05-00-040-03-02 21000-3A-05-00-0A0-03-02 21OOO-34-O5-OO-O4O-O3-O2 21000-34-05-00-040-03-01 21000-34-05-00-040-03-04 21000-34-05-00-040-03-CN 21000-34-05-00-040-03-BR 21OOO-34-O5-OO-O4O-O3-O1 21OOO-34-O5-OO-O4O-O3-O4

      Information

      Overview Manuals Basic Info Instruction Typical 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 21000-34-05-00-040-03-02 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 21000-34-05-00-040-03-02 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: 21000-34-05-00-040-03-02
      • 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.Global Oil & Gas and Petrochemical Hazardous Projects: Due to its built-in 3300 XL 8mm probe's multiple national explosion-proof certifications (ATEX, IECEx, CSA, etc.), many large international engineering contractors (EPCs) typically choose it as a standard component for direct deployment in Zone 1/0 and Zone 1 hazardous areas worldwide, such as chemical plants, oil refineries, or offshore drilling platforms, eliminating the need to replace hardware due to different explosion-proof regulations in target countries/regions.
      2.Shaft Vibration and Displacement Monitoring for Standard Thickness Bearing Housings: The 4.0-inch sleeve depth is a classic gold standard in the rotating machinery field. It can penetrate medium-thickness machine housings or bearing housings, allowing the probe tip to be precisely aligned with the rotating shaft through internal baffles or structural components.
      3.Critical Rotating Machinery Condition Monitoring System (TSI):
      Permanently installed on the following high-risk, high-asset equipment:
      Centrifugal/Axial Flow Compressors: Monitor radial vibration during high-speed operation to prevent bearing wear.
      Industrial steam turbines/flue gas turbines: Monitor rotor axial position/thrust displacement to prevent severe dynamic and static friction caused by thrust bearing damage.
      Large high-pressure feedwater pumps/blowers: Continuously track rotor dynamic characteristics.

      Manuals

      Technical notes

      The Bentley Nevada 21000-34-05-00-040-03-02 is an aluminum explosion-proof eddy current probe external protective housing assembly that meets API 670 standards and CSA Type 4 protection rating. It features a built-in 3300 XL 8 mm reverse-mount probe, a 0.5-meter cable, a direct-mount design, and a 4.0-inch sleeve immersion depth. It is designed to protect sensors in harsh industrial environments and provide convenient external online gap adjustment.

      • 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, ensuring the smooth operation of your critical business.

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      FAQ

      View All Faqs
      • What are the main engineering functions of the 21000-34-05-00-040-03-02 probe in a critical rotating machinery condition monitoring system?
        The 21000-34-05-00-040-03-02 is an eddy current proximity probe assembly designed for high-precision non-contact measurement of shaft vibration, radial displacement, axial position, and rotor dynamic characteristics. It is designed as a sensing element in calibrating proximity sensor systems, providing reliable real-time data for machinery protection and predictive maintenance applications.
      • How does the 21000-34-05-00-040-03-02 utilize advanced eddy current measurement technology to achieve superior displacement accuracy?
        The 21000-34-05-00-040-03-02 employs an advanced electromagnetic eddy current sensing principle. A high-frequency electromagnetic field is generated at the probe tip; changes in the gap between the probe and the target alter the induced eddy currents on the conductive shaft surface. This results in a proportional electrical output with excellent linearity, repeatability, sensitivity, and dynamic response performance.
      • What are the mechanical probe configuration specifications for the 21000-34-05-00-040-03-02 proximity sensor assembly?
        The 21000-34-05-00-040-03-02 uses a 34 mm probe body configuration; the
      • What are the integrated cable length specifications included in the design of the 21000-34-05-00-040-03-02?
        The 21000-34-05-00-040-03-02 model is equipped with a 5-meter (16.4-foot) integrated precision coaxial cable, cable number 05. The cable assembly is optimized to maintain controlled electrical characteristics and ensure accurate signal transmission between the probe, extension cable, and signal conditioning electronics.
      • How does the 21000-34-05-00-040-03-02 model maintain high signal fidelity in harsh industrial environments?
        The 21000-34-05-00-040-03-02 model employs a shielded impedance-controlled coaxial cable construction, minimizing signal degradation caused by electromagnetic interference (EMI), radio frequency interference (RFI), electrical noise, and impedance variations. This design ensures stable and accurate displacement measurement signals.
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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.
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