Rotating Machinery Vibration Monitoring Solution – Bently Nevada 21000-16-10-15-070-03-02 | 3300 XL Series
The Bently Nevada 21000-16-10-15-070-03-02 is a precision-engineered Proximity Probe Housing Assembly designed for continuous, non-contact vibration and position measurement on rotating machinery. As a core mechanical interface component within the Bently Nevada 3300 XL eddy-current sensing system, this housing assembly ensures accurate probe positioning, environmental sealing, and structural rigidity in the most demanding industrial environments.
Konmask.com supplies this part to maintenance engineers, reliability teams, and OEM integrators worldwide — with full traceability and quality verification on every unit.
Where This Product Is Used
The 21000-16-10-15-070-03-02 housing assembly is specified wherever Bently Nevada 3300 XL proximity probes are deployed for shaft vibration, axial position, or differential expansion measurement. Typical installation environments include:
- Steam & Gas Turbines — Shaft radial vibration monitoring on HP/LP turbine stages; critical for API 670 compliance
- Centrifugal Compressors — Rotor dynamic monitoring in gas processing, LNG, and petrochemical trains
- Boiler Feed Pumps & Large Pumps — Continuous bearing journal orbit monitoring in power generation
- Gearboxes & Expanders — High-speed shaft position sensing in refinery and chemical plant machinery
- Hydro Turbines — Axial thrust and radial vibration measurement on vertical shaft machines
- Marine Propulsion Systems — Shaft monitoring in offshore and naval applications
Wherever a 3300 XL probe tip must be precisely located relative to a rotating shaft — and held there reliably under thermal cycling, vibration, and process fluid exposure — this housing assembly is the specified solution.
Technical Specifications
| Part Number | 21000-16-10-15-070-03-02 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Series / Platform | 3300 XL Proximity Transducer System |
| Component Type | Proximity Probe Housing Assembly |
| Probe Compatibility | Bently Nevada 3300 XL 8mm / 11mm Proximity Probes |
| Sensing Technology | Eddy-Current (Non-Contact) |
| Housing Thread | M16 × 1.0 (metric fine thread, per part number encoding) |
| Probe Tip Standoff Range | 0.25 mm – 2.54 mm (10 – 100 mil) linear range |
| Target Material Compatibility | Steel, Stainless Steel, Inconel, Chrome-plated shafts |
| Operating Temperature | –35°C to +177°C (–31°F to +350°F) |
| Ingress Protection | IP67 (sealed assembly) |
| Housing Material | 316 Stainless Steel |
| Cable Length (Extension) | Per system configuration (070 = 7.0 m extension) |
| Weight | 1,380 g (assembled) |
| Compliance | API 670, CE, RoHS |
Why Engineers Specify This Model
- Exact OEM Geometry — Housing dimensions match Bently Nevada factory specifications; no field shimming or adapter plates required
- Thermal Stability — 316 SS construction maintains probe gap calibration across wide temperature excursions common in turbine bearing housings
- Vibration Immunity — Rigid housing eliminates probe resonance artifacts that corrupt vibration waveform data
- Sealed Design — IP67 rating prevents lube oil, steam condensate, and process gas ingress that degrades probe sensitivity
- API 670 Ready — Meets the mechanical interface requirements of the industry standard for machinery protection systems
- Drop-in Replacement — Direct form/fit/function replacement for existing 21000-series installations; no re-calibration of the monitoring system required
Complete System Bill of Materials
The 21000-16-10-15-070-03-02 housing assembly is one element of a complete Bently Nevada 3300 XL proximity measurement chain. A fully specified system typically includes:
- Proximity Probe (e.g., 330103-00-06-10-02-00 or 330104-00-06-10-02-00)
- Probe Housing Assembly — 21000-16-10-15-070-03-02 (this item)
- Extension Cable (e.g., 330130-080-00-00 — 8.0 m)
- Proximitor® Sensor / Signal Conditioner (e.g., 3300 XL 8mm Proximitor, 330180-X1-CN)
- 3500 Series Rack Monitor (e.g., 3500/42M Proximitor® / Velomitor® Monitor)
- Barrier / Zener Barrier (for hazardous area installations)
Contact Konmask.com for complete system sourcing — we can supply the full measurement chain from a single order.
Compliance & Industry Standards
- API 670 — Machinery Protection Systems (5th Edition): mechanical interface and installation requirements
- IEC 60079 — Explosive atmospheres (ATEX/IECEx variants available on request)
- ISO 10816 / ISO 20816 — Mechanical vibration evaluation of machines
- CE Marking — European conformity for machinery directive
- RoHS Compliant — Restriction of hazardous substances
Quality Assurance & Sourcing
Every 21000-16-10-15-070-03-02 unit supplied by Konmask.com undergoes the following verification process before shipment:
- ✅ Visual & Dimensional Inspection — Thread form, housing geometry, and connector condition verified against OEM drawings
- ✅ Label & Serialization Check — Part number, date code, and manufacturer markings authenticated
- ✅ Functional Pre-check — Electrical continuity and insulation resistance verified where applicable
- ✅ Traceability Documentation — Certificate of conformance and test records available on request
- ✅ Anti-Counterfeit Screening — All units sourced through verified industrial distribution channels; no gray-market or refurbished stock without explicit disclosure
How to Source This Part
- Submit an RFQ — Email [email protected] with your part number, required quantity, and delivery timeline
- Receive Quote — We respond within 24 business hours with pricing, lead time, and availability confirmation
- Order Confirmation — Purchase order accepted via email; proforma invoice issued for new accounts
- Quality Inspection & Packing — Unit inspected, photographed, and packed in anti-static, moisture-barrier packaging
- Shipment & Tracking — DHL / FedEx Express worldwide; export documentation (commercial invoice, packing list, COO) included
- After-Sales Support — Technical support available for installation, commissioning, and system integration questions
Application-Specific FAQ
Q: Can this housing assembly be used with 3300 XL 11mm probes as well as 8mm probes?
A: The 21000-series housing is designed for the 3300 XL probe family. Compatibility depends on the probe tip diameter and thread specification encoded in the part number. Contact us to confirm compatibility with your specific probe model before ordering.
Q: Is this part suitable for hazardous area (Zone 1 / Division 1) installations?
A: The standard 21000-16-10-15-070-03-02 is used in conjunction with Bently Nevada’s intrinsically safe Proximitor sensors and approved barriers for hazardous area compliance. The housing itself does not carry an ATEX/IECEx rating independently — the system-level approval applies. Consult your safety engineer and the Bently Nevada system documentation.
Q: What is the correct probe gap (air gap) for this housing configuration?
A: The nominal gap for 3300 XL 8mm probes on steel targets is typically 1.0 mm (40 mil), corresponding to the –10 VDC midpoint of the Proximitor output range. Always verify against the specific Proximitor calibration curve for your target material.
Q: Can Konmask supply the complete 3300 XL measurement chain?
A: Yes. We stock or can source probes, extension cables, Proximitor sensors, and 3500 rack monitors. Submit a full BOM to [email protected] for a consolidated quote.
Q: What is the lead time for this part?
A: In-stock units ship within 3–5 business days. For out-of-stock items, typical lead time is 2–4 weeks depending on sourcing channel. Expedited sourcing is available for critical plant shutdowns.
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