Bently Nevada 21000-28-10-00-185-04-02 – 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 to meet API 670 standards, this platform is deployed globally in turbines, compressors, pumps, and generators where unplanned downtime carries catastrophic operational and financial consequences.
Product Positioning: The 21000-28-10-00-185-04-02 is a precision-machined proximity probe housing assembly engineered for the 3300 XL eddy-current measurement chain. It provides mechanical protection, accurate radial positioning, and environmental sealing for the probe tip, ensuring measurement integrity in harsh industrial environments. This part is a direct OEM-equivalent replacement suitable for new installations and field maintenance.
Complete Technical Specifications
- Part Number: 21000-28-10-00-185-04-02
- 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 (metric, stainless body)
- Material: Stainless steel housing with corrosion-resistant finish
- IP Rating: Suitable for IP65+ industrial enclosure environments
- Operating Temperature: –40 °C to +120 °C (probe-dependent)
- Weight: Approx. 1,080 g (assembly with hardware)
- Compliance: API 670 compatible; CE-marked system
- Country of Origin: United States
Proven Application Environments
- Steam and gas turbine shaft radial vibration monitoring
- Centrifugal and reciprocating compressor bearing journals
- Boiler feed pump and cooling water pump shafts
- Gearbox and motor shaft displacement measurement
- Petrochemical, LNG, power generation, and offshore platforms
- Any API 670-compliant machinery protection system
Engineering Advantages
- OEM Dimensional Accuracy: Machined to Bently Nevada factory tolerances — no field shimming or re-calibration required on direct replacement.
- Corrosion Resistance: Stainless steel construction withstands hydrocarbon atmospheres, steam, and wash-down environments.
- Secure Probe Retention: Locking mechanism prevents probe migration under vibration, maintaining gap stability and measurement linearity.
- Broad Compatibility: Integrates directly with 3300 XL extension cables, proximitors, and 3500 Series rack monitors without adapter hardware.
- Reduced MTTR: Drop-in replacement design minimizes maintenance window duration during planned outages.
System Architecture & Signal Flow
The 3300 XL measurement chain operates as follows:
Rotating Shaft → Probe Tip (housed in 21000-28-10-00-185-04-02 Assembly) → Extension Cable → Proximitor / Oscillator-Demodulator → 3500 Rack Monitor → DCS / Safety System
The housing assembly is the critical mechanical interface that fixes probe-to-shaft gap (typically 1.0–2.0 mm / 40–80 mil) and protects the probe from process fluid ingress. Incorrect housing geometry or probe migration directly degrades signal linearity and can trigger false trips or missed fault detection.
Sourcing & Quality Verification
- Source: Konmask.com sources from authorized distributors and verified OEM-surplus channels. Each unit undergoes incoming inspection.
- Documentation: Material traceability records and test certificates available on request.
- Condition: New / New-surplus (clearly stated per order confirmation).
- Lead Time: In-stock units ship within 1–3 business days; ETA confirmed at order.
- Warranty: 12-month operational warranty against manufacturing defects.
Procurement Process
- Submit your RFQ or place order directly on Konmask.com.
- Receive order confirmation with stock status and estimated ship date within 4 business hours.
- Export documentation (commercial invoice, packing list, COO) prepared for international shipments.
- DHL / FedEx / UPS express options available for AOG and critical-path maintenance.
- Contact [email protected] for volume pricing, blanket orders, or consignment arrangements.
Technical FAQ
Q: Is this housing compatible with the older 3300 (non-XL) probe series?
A: The 3300 XL housing is dimensionally optimized for XL-series probes. Cross-compatibility with legacy 3300 probes should be verified against OEM interchangeability tables before installation.
Q: What is the recommended probe gap for this housing?
A: Standard gap is 1.0–2.0 mm (40–80 mil) per Bently Nevada TN-13 application note. Final gap must be set per the specific shaft material and proximitor calibration curve.
Q: Can I order a complete transducer kit (probe + extension cable + proximitor)?
A: Yes. Contact [email protected] with your system configuration and we will quote a matched assembly.
Q: Do you provide ATEX / IECEx certified variants?
A: Hazardous-area certified variants are available. Please specify your zone classification and gas group when enquiring.
Q: What is the lead time for out-of-stock units?
A: Typical sourcing lead time is 2–6 weeks. Priority sourcing available for critical plant situations — contact us directly.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
