Bently Nevada 21000-16-10-15-072-03-02 – Proximity Probe Housing Assembly | 3300 XL Series Platform
Engineering Background: The Bently Nevada 3300 XL Series represents the industry benchmark for continuous shaft vibration monitoring in rotating machinery. Designed for critical turbomachinery applications — including steam turbines, gas compressors, and centrifugal pumps — the 3300 XL platform delivers API 670-compliant measurement with exceptional signal integrity. The housing assembly (P/N 21000-16-10-15-072-03-02) is the precision mechanical interface that positions and protects the eddy-current probe tip at the exact gap distance required for accurate displacement measurement.
Product Positioning: This housing assembly is a direct OEM-equivalent replacement component sourced for maintenance, repair, and overhaul (MRO) programs at refineries, petrochemical plants, power generation facilities, and offshore platforms. Konmask.com supplies this part to procurement engineers who require traceable, quality-verified components with short lead times.
Complete Technical Specifications
- Part Number: 21000-16-10-15-072-03-02
- Manufacturer: Bently Nevada (Baker Hughes)
- Series / Platform: 3300 XL Proximity Transducer System
- Component Type: Proximity Probe Housing Assembly
- Probe Compatibility: 3300 XL 8 mm Proximity Probes (standard eddy-current)
- Thread / Mounting: Per OEM specification (consult datasheet for exact thread size and engagement depth)
- Material: Stainless steel body with corrosion-resistant finish
- Operating Temperature: –35 °C to +120 °C (ambient)
- IP Rating: Suitable for industrial enclosure environments
- Weight: Approx. 1,080 g (assembled)
- Country of Origin: United States
- Compliance: API 670 compatible; CE-marked platform
Proven Application Environments
- Steam turbine shaft radial vibration monitoring
- Gas turbine and compressor train displacement measurement
- Centrifugal pump and motor bearing proximity sensing
- Petrochemical and refinery rotating equipment protection systems
- Power generation (combined-cycle, nuclear auxiliary systems)
- Offshore platform critical machinery surveillance
- Pulp & paper and mining rotating equipment
Engineering Advantages
- OEM-Equivalent Fit: Drop-in replacement — no field modification required; maintains original gap calibration geometry.
- Signal Integrity: Precision-machined probe tip recess ensures consistent eddy-current gap (typically 1.0–2.5 mm) for linear output.
- Robust Construction: Stainless steel housing resists process fluid ingress, vibration fatigue, and thermal cycling.
- API 670 Alignment: Supports compliance with API 670 5th Edition requirements for radial vibration and axial position monitoring.
- Reduced Downtime: Pre-assembled housing minimizes installation time during planned turnarounds.
System Architecture & Signal Flow
The 3300 XL proximity transducer system operates on the eddy-current principle:
- Probe Tip (housed in this assembly) generates a high-frequency electromagnetic field directed at the rotating shaft.
- Eddy Currents induced in the shaft surface attenuate the field proportionally to the air gap distance.
- Extension Cable (3300 XL series, field-configurable length) transmits the modulated signal to the driver/oscillator.
- 3300 XL Driver converts the impedance change to a DC voltage output (typically –24 VDC bias, –200 mV/mil sensitivity).
- 3500 Rack / Monitor processes the voltage signal for alarm, trip, and data historian functions.
Note: The housing assembly must be paired with a compatible 3300 XL probe and extension cable of matching system length to maintain calibration accuracy.
Sourcing & Quality Verification
- All units are inspected upon receipt against OEM dimensional and functional specifications.
- Traceability documentation (manufacturer certificates, test records) available upon request for critical-service applications.
- Parts are stored in ESD-safe, climate-controlled conditions to prevent corrosion and mechanical damage prior to shipment.
- Konmask.com maintains a curated inventory of Bently Nevada MRO components to support unplanned outage scenarios.
Procurement Process
- Confirm Part Number: Verify 21000-16-10-15-072-03-02 against your BOM or existing installation tag.
- Request Quote: Contact support@konmask.com with quantity, required delivery date, and destination port.
- Documentation: Specify if CoC, material certificates, or third-party inspection is required at time of order.
- Shipping: DHL / FedEx Express international; EXW Xiamen or CIF available. Lead time: 3–7 business days for in-stock units.
- Payment: T/T, PayPal, credit card accepted. Net-30 terms available for approved accounts.
Technical FAQ
Q: Is this housing compatible with the 3300 NSv or 3300 RAM probe systems?
A: No. This housing is specifically designed for the 3300 XL 8 mm probe series. Cross-compatibility with NSv or RAM variants requires verification against OEM dimensional drawings.
Q: Can I use a third-party probe in this housing?
A: Not recommended. The 3300 XL system is a calibrated system — mixing OEM housings with non-OEM probes will invalidate the system calibration and may violate API 670 compliance requirements.
Q: What is the typical gap setting for this housing?
A: The standard installation gap for 3300 XL 8 mm probes is 1.0–2.5 mm (40–100 mils). Refer to Bently Nevada installation manual for your specific shaft material and diameter.
Q: Do you provide installation support?
A: Konmask.com provides pre-sales technical consultation and can connect customers with certified Bently Nevada service partners for on-site commissioning.
Q: What is the lead time for out-of-stock units?
A: Typical factory lead time is 8–14 weeks. Contact us for expedite options or alternative sourcing from our partner network.
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