Bently Nevada 21000-16-05-00-066-04-02 – Proximity Probe Housing Assembly | 3300 XL Series Platform
Engineering Background
The Bently Nevada 3300 XL Series represents the industry benchmark for eddy-current proximity sensing in rotating machinery protection systems. Developed by Baker Hughes (Bently Nevada), this platform is deployed globally in turbines, compressors, pumps, and generators where continuous shaft vibration and position monitoring is mission-critical. The housing assembly (P/N 21000-16-05-00-066-04-02) is the precision-machined mechanical interface that positions and protects the probe tip at the exact gap distance required for accurate eddy-current measurement.
Product Positioning
This housing assembly is engineered for OEM replacement and system expansion in API 670-compliant machinery protection installations. It is the correct mechanical complement to Bently Nevada 3300 XL proximity probes and extension cables, ensuring dimensional accuracy, environmental sealing, and signal integrity in harsh industrial environments including petrochemical, power generation, and heavy manufacturing.
Complete Technical Specifications
- Part Number: 21000-16-05-00-066-04-02
- Manufacturer: Bently Nevada (Baker Hughes)
- Series / Platform: 3300 XL Proximity Transducer System
- Component Type: Proximity Probe Housing Assembly
- Sensing Technology: Eddy-Current (Non-contact)
- Probe Thread: Per 3300 XL series standard (consult datasheet for exact thread spec)
- Housing Material: Stainless steel / corrosion-resistant alloy
- Environmental Rating: Suitable for industrial process environments
- Compliance: API 670 compatible machinery protection systems
- Weight: Approx. 1,400 g (shipping weight)
- Country of Origin: United States
- Condition: New / Surplus New / Refurbished (specify at inquiry)
Proven Application Environments
- Steam and gas turbine shaft vibration monitoring
- Centrifugal and reciprocating compressor radial/axial position sensing
- Boiler feed pump and cooling water pump protection systems
- Generator rotor eccentricity and differential expansion measurement
- Petrochemical plant rotating equipment covered under API 670 / ISO 10816
- Power generation facilities with continuous online machinery protection
- Marine propulsion and offshore platform rotating machinery
Engineering Advantages
- Dimensional Precision: Machined to exact OEM tolerances ensuring correct probe-to-target gap and repeatable calibration
- Signal Integrity: Rigid housing eliminates probe movement artifacts that corrupt vibration waveforms
- Environmental Sealing: Designed to resist process fluid ingress, vibration fatigue, and thermal cycling
- OEM Interchangeability: Direct drop-in replacement for existing 3300 XL installations — no field modification required
- Long Service Life: Corrosion-resistant materials rated for continuous duty in aggressive process atmospheres
- Reduced Downtime: Stocked for immediate dispatch, minimizing unplanned outage duration
System Architecture & Signal Flow
The 3300 XL proximity transducer system operates as a three-component chain: Probe → Extension Cable → Proximitor® Sensor. The housing assembly mechanically anchors the probe at the bearing housing or machine casing, maintaining the calibrated gap (typically 1.0–2.5 mm) between the probe tip and the rotating shaft target area. The eddy-current field generated by the probe oscillator is modulated by shaft position changes; the Proximitor converts this into a DC voltage signal (typically –24 VDC nominal, –200 mV/mil sensitivity) fed to the 3500 Series rack or equivalent monitoring system.
Correct housing selection is critical: probe thread engagement, housing depth, and locknut configuration must match the machine casing bore and probe model. Verify against the Bently Nevada 3300 XL System Installation Manual (document 141536-01) before installation.
Sourcing & Quality Verification
- All units sourced through authorized industrial surplus channels or direct OEM supply
- Pre-shipment inspection: visual, dimensional, and continuity checks performed
- Serialization and lot traceability documented on request
- Certificate of Conformance (CoC) available for critical installations
- Packaging: anti-static, moisture-barrier, foam-cushioned for international transit
- Konmask.com maintains a curated inventory of Bently Nevada 3300 XL system components for rapid fulfillment
Procurement Process
- Confirm Part Number: Verify 21000-16-05-00-066-04-02 against your BOM or existing installation tag
- Request Quote: Contact [email protected] with quantity, required condition, and delivery timeline
- Lead Time: In-stock units ship within 1–3 business days; EXW Xiamen or DDP options available
- Payment: T/T, PayPal, credit card accepted; LC available for large orders
- Documentation: Commercial invoice, packing list, CoC, and customs HS code 9026.80 provided
- After-Sales: 12-month warranty on new units; technical support via email or WhatsApp
Technical FAQ
Q: Is this housing compatible with all 3300 XL probes?
A: This housing is designed for the 3300 XL series. Confirm probe thread size and housing depth against your specific probe model (e.g., 330103, 330104, 330105) before ordering.
Q: Can this be used with the Bently Nevada 3500 monitoring rack?
A: Yes. The 3300 XL transducer system is the standard input transducer for 3500 Series machinery protection racks. The housing itself is a passive mechanical component compatible with any 3300 XL-based installation.
Q: What is the recommended probe gap for this housing?
A: Standard calibrated gap is 1.0–2.5 mm (40–100 mil) depending on probe model and target material. Refer to Bently Nevada calibration curves for your specific probe/target combination.
Q: Do you provide installation support?
A: Konmask.com provides technical documentation and remote guidance. On-site commissioning can be arranged through our partner network — contact us for details.
Q: What is the HS code for customs clearance?
A: HS 9026.80 (instruments for measuring or checking flow, level, pressure — other). Verify with your local customs authority.
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