{"product_id":"21000-28-10-20-095-04-02-bently-nevada-proximity-probe-housing-assembly","title":"21000-28-10-20-095-04-02 Bently Nevada Proximity Probe Housing Assembly","description":"\u003ch3\u003e21000-28-10-20-095-04-02 Bently Nevada Proximity Probe Housing Assembly Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eBently Nevada 21000-28-10-20-095-04-02\u003c\/span\u003e\u003c\/strong\u003e is an API 670 compliant, explosion-proof proximity probe housing assembly engineered for heavy-duty machinery protection systems. Consisting of an anodized aluminum body paired with a 304 stainless steel probe sleeve, the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e21000-28-10-20-095-04-02\u003c\/span\u003e\u003c\/strong\u003e allows field engineers to install, adjust, or replace internal 3300 XL 8 mm proximity transducers externally without dismantling machine casing covers or interrupting process operations.\u003c\/p\u003e\n\u003ch3\u003ePart Number Configuration Breakdown\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"text-align: left;\"\u003eOption Code\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eConfiguration Field\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eSelected Parameter \/ Specification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e21000\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003eProximity Probe Housing Assembly (Aluminum Body, 304 SS Sleeve)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-28\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProbe Option (with Connector)\u003c\/td\u003e\n\u003ctd\u003e3300 XL 8 mm reverse mount probe, hazardous area approved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-10\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProbe Cable Length\u003c\/td\u003e\n\u003ctd\u003e1.0 meter (39 inches) integrated probe cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-20\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandoff Adapter Length\u003c\/td\u003e\n\u003ctd\u003e2.0 inches standoff adapter height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-095\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProbe Penetration Depth\u003c\/td\u003e\n\u003ctd\u003e9.5 inches sleeve penetration length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-04\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConduit Fitting Option\u003c\/td\u003e\n\u003ctd\u003eOne 3\/4-14 NPT explosion-proof plug included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-02\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMounting Thread Option\u003c\/td\u003e\n\u003ctd\u003e3\/4-14 NPT external process mounting thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer \u0026amp; Series:\u003c\/strong\u003e Bently Nevada \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e21000 Series\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Ordering Part Number:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e21000-28-10-20-095-04-02\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody \u0026amp; Sleeve Materials:\u003c\/strong\u003e Corrosion-resistant cast aluminum housing body with 304 stainless steel sleeve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Transducer:\u003c\/strong\u003e 3300 XL 8 mm reverse-mount proximity probe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Penetration Dimensions:\u003c\/strong\u003e Maximum (C) + (D) dimension up to 32.9 inches (83.5 cm); visible probe P\/N \u0026amp; S\/N inspection limit 17.0 inches (43.18 cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical Net Weight:\u003c\/strong\u003e 1.1 kg (2.4 lbs) baseline assembly without auxiliary conduit fittings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Protection Rating:\u003c\/strong\u003e CSA Certified Type 4 (NEMA 4 equivalent) moisture\/dust seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Area Rating:\u003c\/strong\u003e Class I Div 1 \u0026amp; 2 (Groups C, D); Class II Div 1 \u0026amp; 2 (Groups E, F, G); Class III; T5 (@ -50 °C to +40 °C), T4 (@ -50 °C to +80 °C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard Compliance:\u003c\/strong\u003e Fully compliant with API 670 standard for external proximity probe hardware; RoHS Directive 2011\/65\/EU compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTarget Equipment and Application Scenarios\u003c\/h3\u003e\n\u003cp\u003eMachinery health specialists install the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e21000-28-10-20-095-04-02\u003c\/span\u003e\u003c\/strong\u003e housing across critical rotating assets operating in harsh, hazardous environments, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrifugal Gas Compressors:\u003c\/strong\u003e Mounting radial vibration and axial thrust probes through machine casing walls without breaching pressurized seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteam \u0026amp; Gas Turbines:\u003c\/strong\u003e Protecting eddy current transducers against high ambient temperatures, steam washing, and airborne hydrocarbon vapor exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoiler Feed Pumps \u0026amp; Gearboxes:\u003c\/strong\u003e Providing robust mechanical enclosure protection for keyphasor and shaft position sensors against industrial washdowns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefinery \u0026amp; Petrochemical Skids:\u003c\/strong\u003e Implementing explosion-proof, API 670 compliant sensor installations in hazardous Class I Division 1 plant zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003cp\u003eInspect internal O-rings and thread seals on the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e21000-28-10-20-095-04-02\u003c\/span\u003e\u003c\/strong\u003e for proper seating prior to insertion. Thread the 3\/4-14 NPT standoff adapter onto the machine housing port using appropriate thread sealant. Insert the 304 stainless steel probe sleeve through the standoff to achieve the target 9.5-inch penetration depth, ensuring precise electrical gap calibration between the 3300 XL 8 mm probe tip and target shaft. Tighten the dome cover securely onto the aluminum body to maintain Type 4 environmental sealing and thread explosion-proof conduit into the secondary connection ports.\u003c\/p\u003e\n\u003ch3\u003eAdvanced Diagnostic Capabilities\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e21000-28-10-20-095-04-02\u003c\/span\u003e\u003c\/strong\u003e housing enables seamless online machine diagnostic routines without stopping critical processes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Gap Calibration:\u003c\/strong\u003e Allows technicians to unbolt the outer dome cover and adjust or measure probe DC bias voltage gaps directly while the machine remains operational.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical Probe Inspection:\u003c\/strong\u003e Features a sleeve design allowing partial retraction (up to 17.0 inches combined C+D length) to visually verify probe part numbers and serial numbers without complete dismounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Isolation:\u003c\/strong\u003e Dual internal O-rings isolate field wiring and proximity sensor connectors from process gas leaks, atmospheric moisture, and mechanical vibration degradation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility Matrix\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e21000-28-10-20-095-04-02\u003c\/span\u003e\u003c\/strong\u003e connects directly into standard machinery monitoring frameworks:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitoring Systems:\u003c\/strong\u003e Bently Nevada 3500 and 3300 Machinery Protection Systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtension Cable Interconnects:\u003c\/strong\u003e 3300 XL 7200\/3300 series 1.0 m extension cables and standard 3300 XL Proximitor Sensors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcess Fittings:\u003c\/strong\u003e 3\/4-14 NPT standard process taps (option 02) with 2-inch standoff spacing (option 20)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCertifications and Industrial Standards\u003c\/h3\u003e\n\u003cp\u003eThis Bently Nevada housing complies with rigorous global standard frameworks: CSA certified explosion-proof for Class I, Div 1\/2 hazardous locations; compliant with non-incendive wiring specs per drawing 140979; tested for Type 4 weatherproof enclosures; built in strict accordance with American Petroleum Institute API 670 machinery protection requirements.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents, Warranty, and Express Logistics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the Box:\u003c\/strong\u003e 1 x New \u0026amp; Original \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eBently Nevada 21000-28-10-20-095-04-02\u003c\/span\u003e\u003c\/strong\u003e Probe Housing Assembly in factory packaging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Terms:\u003c\/strong\u003e Covered by a 12-Month factory replacement warranty from dispatch date\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpress Shipping Options:\u003c\/strong\u003e Worldwide priority handling via premium couriers including FedEx, UPS, and DHL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eA common error we observe in offshore turbomachinery maintenance is incorrect calculation of total probe insertion length when retrofitting custom standoff adapters. When ordering the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003e21000-28-10-20-095-04-02\u003c\/span\u003e\u003c\/strong\u003e, remember that option code \u003cstrong\u003e-20\u003c\/strong\u003e specifies a 2.0-inch standoff adapter, while option code \u003cstrong\u003e-095\u003c\/strong\u003e defines a 9.5-inch sleeve penetration depth. If field technicians fail to account for the standoff height during initial probe gap positioning, the 3300 XL probe tip may bottom out against the rotating shaft or sit too far back in the sleeve, causing DC voltage saturation on the 3500 monitor. Always measure overall sleeve clearance from the top of the standoff flange to the target shaft surface prior to final locking screw torque application.\u003c\/p\u003e\n\u003ch3\u003eSelection Guide and Technical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSelection Tip:\u003c\/strong\u003e Specify the aluminum 21000 series housing for standard industrial installations requiring high strength-to-weight ratios and API 670 compliance. If your facility requires extreme resistance to highly corrosive marine or acidic atmospheres, consider the 24701 stainless steel housing series.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: How is the probe penetration depth calculated on the 21000-28-10-20-095-04-02 housing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: Option code 095 indicates a 9.5-inch penetration depth. This measurement represents the overall effective length of the stainless steel sleeve extending from the process connection thread into the machine casing to position the probe tip accurately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: Can I adjust the internal proximity probe gap without removing the housing from the turbine casing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: Yes, unthreading the top dome cover exposes the reverse-mount probe sleeve assembly, allowing field technicians to set gap voltages using a multimeter without unthreading the main 3\/4-14 NPT process fitting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: What cable length is integrated with the probe inside this assembly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: Option code 10 specifies a 1.0-meter (39-inch) probe cable length attached to the 3300 XL 8 mm transducer, which routes through internal conduit ports to reach external junction boxes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: Is the 21000 housing certified for outdoor wet installations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: Yes, the housing features dual high-temperature O-rings and precision thread seals, earning a CSA Type 4 rating that prevents water ingress, rain penetration, and heavy industrial washdown damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestion: Why is mounting thread option 02 required when selecting a standoff adapter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAnswer: Option 02 provides the 3\/4-14 NPT process interface thread necessary to securely anchor the 2.0-inch standoff adapter (option 20) onto the outer machine casing wall.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/21000_CA21000_Proximity_Probe_Housing_Assembly_007eb544-fd00-4b41-a22e-c953629fa721.png?v=1784785784\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":45014025240758,"sku":"21000-28-10-20-095-04-02","price":281.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/21000-28-10-20-050-04-02_4e718d2b-8a30-48a8-b462-868246ef933f.jpg?v=1787649625","url":"https:\/\/www.plcsparehub.com\/products\/21000-28-10-20-095-04-02-bently-nevada-proximity-probe-housing-assembly","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}