{"product_id":"bently-nevada-21000-28-05-15-50-03-02-proximity-probe-housing-assembly","title":"Bently Nevada 21000-28-05-15-50-03-02 Proximity Probe Housing Assembly","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for severe-duty industrial rotating machinery, the \u003cstrong\u003eBently Nevada 21000-28-05-15-50-03-02\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Housing:\u003c\/strong\u003e Constructed from premium-grade cast aluminum to withstand volatile industrial environments and marine exposures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Sleeve Configuration:\u003c\/strong\u003e Allows seamless depth adjustment of the proximity probe, ensuring precise gap calibration for vibration and axial position measurements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Agency Approvals:\u003c\/strong\u003e Rated for hazardous area classification, offering flameproof and explosion-proof protection profiles in high-risk zones.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFluid Seal Integration:\u003c\/strong\u003e Incorporates advanced internal sealing rings to prevent process lubricating oils and gases from leaking into the external environment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Conduit Interface:\u003c\/strong\u003e Standardized electrical connection ports permit seamless integration with rigid or flexible conduit systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eSteam and gas turbine vibration monitoring and rotor position tracking.\u003c\/li\u003e\n  \u003cli\u003eLarge-scale industrial centrifugal compressors and turbo-compressors.\u003c\/li\u003e\n  \u003cli\u003eHydroelectric generator shaft vibration and axial displacement detection.\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty cooling tower fan shafts and large industrial gearboxes.\u003c\/li\u003e\n  \u003cli\u003eBoiler feed pumps and high-pressure process pump monitoring networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border: 1px solid #e2e8f0; padding: 10px; text-align: left; font-weight: bold; color: #1a365d;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"border: 1px solid #e2e8f0; padding: 10px; text-align: left; font-weight: bold; color: #1a365d;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eBently Nevada (Baker Hughes)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e21000-28-05-15-50-03-02\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eHousing Material\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eCast Aluminum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eProbe Thread Option (-28)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e3\/8-24 UNF Thread\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eConduit Thread Option (-05)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e1\/2-14 NPT (Single Conduit Entry)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eHazardous Area Approval (-15)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eATEX \/ IECEx \/ North American Multi-Approvals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eSleeve Length Option (-50)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e5.0 Inches (127 mm) Sleeve Length\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eFluid Seal Option (-03)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eFluid Seal Option Included (Coaxial Connection Protector)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eOperating Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e-40 degC to +100 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eIngress Protection Rating\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eIP66 \/ NEMA 4X equivalent\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003eUnited States (USA)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e2.2 kg (4.8 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 10px;\"\u003e300 mm x 150 mm x 150 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe 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.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen 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.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEnsure 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.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0; font-size: 0.95rem;\"\u003ePrior 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eEnsure the mounting surface on the machine casing is clean, completely flat, and free of burrs or remnants of old gaskets.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eThread the proximity probe into the internal 3\/8-24 UNF threaded sleeve, making sure the probe cable does not twist or bind.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eCalibrate the mechanical gap of the probe using a calibrated digital voltmeter linked to the proximity proximitor sensor output.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/span\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eSecurely tighten the housing sleeve locknut to prevent drift caused by ambient machine vibration, and attach the external conduit line.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666759807339,"sku":"21000-28-05-15-50-03-02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-21000-28-05-15-50-03-02-proximity-probe-housingassemblies-g0bbwealeij_097fd752-a915-48ba-88de-02e7b720a60e.jpg?v=1765447108","url":"https:\/\/www.plcprotech.com\/fr\/products\/bently-nevada-21000-28-05-15-50-03-02-proximity-probe-housing-assembly","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}