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Bently Nevada 21000-28-05-15-50-03-02 Proximity Probe Housing Assembly

Bently Nevada 21000-28-05-15-50-03-02 Proximity Probe Housing Assembly

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  • Fabricant : Bently Nevada

  • N° de produit : 21000-28-05-15-50-03-02

  • Pays d'origine :États-Unis

  • Type de produit : Proximity Probe Housing Assemblies

  • Code-barres : 8537101190

  • Paiement : Virement bancaire, Western Union

  • Poids : 1080g

  • Dimensions : 300 mm x 150 mm x 150 mm

  • Port d'expédition : Xiamen

  • Garantie : 12 mois

Quantité
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Description

Designed for severe-duty industrial rotating machinery, the Bently Nevada 21000-28-05-15-50-03-02 provides secure mechanical containment and environmental sealing for proximity transducers. This heavy-duty aluminum housing assembly facilitates precise probe positioning and adjustment while maintaining external structural integrity against harsh atmospheric contaminants, oil, and moisture. Engineered as part of critical machinery protection and turbine supervisory instrumentation (TSI) installations, it ensures optimal alignment of the probe relative to the target shaft without requiring the system to be fully depressurized during routine maintenance or adjustment cycles.

Features

  • Corrosion-Resistant Housing: Constructed from premium-grade cast aluminum to withstand volatile industrial environments and marine exposures.
  • Adjustable Sleeve Configuration: Allows seamless depth adjustment of the proximity probe, ensuring precise gap calibration for vibration and axial position measurements.
  • Multi-Agency Approvals: Rated for hazardous area classification, offering flameproof and explosion-proof protection profiles in high-risk zones.
  • Fluid Seal Integration: Incorporates advanced internal sealing rings to prevent process lubricating oils and gases from leaking into the external environment.
  • Industrial Conduit Interface: Standardized electrical connection ports permit seamless integration with rigid or flexible conduit systems.

Applications

  • Steam and gas turbine vibration monitoring and rotor position tracking.
  • Large-scale industrial centrifugal compressors and turbo-compressors.
  • Hydroelectric generator shaft vibration and axial displacement detection.
  • Heavy-duty cooling tower fan shafts and large industrial gearboxes.
  • Boiler feed pumps and high-pressure process pump monitoring networks.

Technical Specifications

Parameter Specification Value
Manufacturer Bently Nevada (Baker Hughes)
Model Number 21000-28-05-15-50-03-02
Housing Material Cast Aluminum
Probe Thread Option (-28) 3/8-24 UNF Thread
Conduit Thread Option (-05) 1/2-14 NPT (Single Conduit Entry)
Hazardous Area Approval (-15) ATEX / IECEx / North American Multi-Approvals
Sleeve Length Option (-50) 5.0 Inches (127 mm) Sleeve Length
Fluid Seal Option (-03) Fluid Seal Option Included (Coaxial Connection Protector)
Operating Temperature Range -40 degC to +100 degC
Ingress Protection Rating IP66 / NEMA 4X equivalent
Country of Origin United States (USA)
Shipping Weight (Calculated) 2.2 kg (4.8 lbs)
Package Dimensions (Calculated) 300 mm x 150 mm x 150 mm

Empirical Engineering Insights

Alternative Models & Compatibility

The Bently Nevada 21000 series aluminum housing is compatible with industry-standard 3300 XL 8mm and 5mm proximity probes. If your installation is located in a highly corrosive marine environment or exposed to continuous acidic washdowns, consider upgrading to the 31000 series housing, which substitutes the cast aluminum body with 316 stainless steel to eliminate galvanic oxidation risks.

Application Pitfalls & Engineering Notes

When deploying the 21000-28-05-15-50-03-02 on high-temperature steam turbine casings, mechanical engineers must account for thermal expansion of both the machine casing and the 5.0-inch housing sleeve. Operating temperatures above 85 degC can introduce measurable physical expansion in the housing, which directly alters the calibrated sensor gap. Perform dynamic verification tests once the machinery reaches thermal equilibrium.

Commissioning & Wiring Tips

Ensure that high-temperature thread-locking compound is applied only to the mounting flange adapters and not to the proximity probe's primary adjustment threads. When securing the 1/2-14 NPT conduit connection, use a certified industrial thread sealant (such as PTFE paste or high-grade anti-seize) to guarantee physical compliance with IP66 moisture intrusion ratings and safe explosive atmosphere containment.

Installation Guidelines

CRITICAL WARNING

Prior to starting any installation, calibration, or maintenance procedure on the housing assembly, verify that the machinery is completely de-energized, locked out, and tagged out (LOTO). Ensure that any localized process pressure within the machine casing has been fully bled and verified at zero atmospheric delta to prevent catastrophic ejection of the probe sleeve during adjustment.

1

Ensure the mounting surface on the machine casing is clean, completely flat, and free of burrs or remnants of old gaskets.

2

Thread the proximity probe into the internal 3/8-24 UNF threaded sleeve, making sure the probe cable does not twist or bind.

3

Calibrate the mechanical gap of the probe using a calibrated digital voltmeter linked to the proximity proximitor sensor output.

4

Securely tighten the housing sleeve locknut to prevent drift caused by ambient machine vibration, and attach the external conduit line.

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What does the -28 option in the housing part number represent?

The -28 option specifies a 3/8-24 UNF probe mounting thread, which is the industry standard for installing 3300 XL 8mm proximity probes.

Can this housing assembly be used in hazardous locations?

Yes. The -15 option specifies multi-agency ATEX, IECEx, and North American hazard approvals, making it suitable for Zone 1, Zone 2, and Division 1 or 2 classified environments.

What is the physical length of the housing sleeve for this model?

The -50 option indicates a nominal sleeve length of 5.0 inches (127 mm), which dictates the standoff clearance distance from the machine outer casing.

What size conduit connection does this assembly support?

The -05 option provides a single 1/2-14 NPT threaded entry port, allowing direct and secure connection to standard industrial rigid or liquid-tight flexible conduits.

Expédition express mondiale

  • Livraison standard : 4 à 6 jours ouvrables via DHL, FedEx et UPS.
  • Expédition express : Expédition le jour même pour les commandes en stock passées avant 14h00 (GMT+8).
  • Couverture mondiale : Service dans plus de 150 pays, avec livraison rapide en Arabie Saoudite et aux Émirats arabes unis.

Retours et garantie

  • Garantie de 30 jours : Retours acceptés pour les produits en stock dans leur emballage d'origine scellé en usine.
  • Garantie de 12 mois : Chaque composant industriel est couvert par notre garantie technique professionnelle.

Les commandes sont traitées et livrées du lundi au vendredi (hors jours fériés).


Pour connaître l'éligibilité complète, les frais de restockage et les détails des retours internationaux, veuillez consulter notre site officiel Politique de remboursement et de retour .

TECHNICAL SPECIFICATIONS

Country of origin
États-Unis

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