Bently Nevada 21000-28-05-15-028-04-02 Proximity Probe Housing Assembly – 3300 XL Series
When a proximity probe housing fails in a critical rotating machinery application — a gas turbine, compressor, or steam turbine — the consequences are immediate and severe. Without a properly sealed and aligned housing assembly, the eddy-current probe loses its calibrated gap, vibration readings drift out of specification, and the entire condition monitoring system becomes unreliable. Unplanned shutdowns, catastrophic bearing failures, and costly production losses follow. The Bently Nevada 21000-28-05-15-028-04-02 Proximity Probe Housing Assembly is the precision-engineered solution that keeps your machinery protection system operating with zero compromise.
The 21000-28-05-15-028-04-02 is a purpose-built housing assembly within Bently Nevada’s globally trusted 3300 XL Series proximity transducer system — the industry standard for shaft vibration, position, and speed measurement in turbomachinery. Deployed across power generation, oil & gas, petrochemical, and heavy industrial facilities worldwide, this assembly provides the mechanical foundation that ensures probe-to-shaft gap integrity, environmental sealing, and long-term signal stability in the harshest plant environments.
Technical Specifications
- Part Number / SKU: 21000-28-05-15-028-04-02
- Manufacturer: Bently Nevada (Baker Hughes)
- Series: 3300 XL Proximity Transducer System
- Product Type: Proximity Probe Housing Assembly
- Compatible Probe Diameter: 8 mm (standard 3300 XL)
- Thread Configuration: As per OEM specification encoded in part number
- Extension Cable Compatibility: 3300 XL Series extension cables
- Driver/Monitor Compatibility: 3300 Series monitors (3300/16, 3300/20, 3500 Series)
- Environmental Rating: Suitable for industrial plant environments
- Weight: 1,400 g (approx.)
- Country of Origin: USA
Note: All specifications are based on OEM documentation. Do not rely on third-party sources for safety-critical parameters. Contact Konmask.com for datasheet verification.
Key Features & Benefits
- Precision Gap Retention: Machined housing geometry maintains the critical probe-to-shaft gap required for accurate eddy-current measurement, eliminating drift-induced false alarms.
- Robust Environmental Sealing: Protects the probe tip and cable connection from oil mist, process gases, moisture, and vibration-induced fatigue — extending MTBF in demanding turbomachinery environments.
- OEM-Matched Thread & Dimensions: Direct drop-in replacement for existing 3300 XL installations; no field modification required, minimizing maintenance downtime.
- Material Integrity: Constructed from corrosion-resistant materials compatible with hydrocarbon and steam environments.
- System Signal Integrity: Preserves the calibrated sensitivity (V/mm) of the complete transducer system by ensuring correct mechanical alignment between probe, extension cable, and driver.
- Reduced Maintenance Risk: Standardized assembly simplifies field replacement, reducing technician error during scheduled outages.
Industry & Equipment Applications
- Power Generation: Gas turbines, steam turbines, hydro generators — shaft radial vibration and axial position monitoring
- Oil & Gas: Centrifugal compressors, expanders, pumps — API 670 compliant machinery protection
- Petrochemical & Refining: Critical rotating equipment requiring continuous online monitoring
- Marine Propulsion: Shaft monitoring on large marine diesel and gas turbine drives
- Steel & Metals: Rolling mill drives, ID/FD fans, large motor-driven equipment
- Pulp & Paper: High-speed rolls and dryer section drives
System Integration & Compatible Parts
The 21000-28-05-15-028-04-02 housing assembly is designed to integrate seamlessly within the complete Bently Nevada 3300 XL Proximity Transducer System. Compatible components include:
- Probes: Bently Nevada 3300 XL 8 mm proximity probes (e.g., 330103, 330104 series)
- Extension Cables: 3300 XL armored and standard extension cables
- Drivers: 3300 XL proximitor sensors / drivers
- Monitors: Bently Nevada 3300/16, 3300/20, 3500/40M, 3500/42M vibration monitors
- DCS Integration: 4–20 mA and voltage outputs compatible with DeltaV, Ovation, ABB 800xA, Honeywell Experion
Our Quality Assurance Process
At Konmask.com, every Bently Nevada component undergoes a structured verification process before shipment:
- ✅ Visual & Dimensional Inspection: Housing threads, sealing surfaces, and connector interfaces checked against OEM drawings
- ✅ Part Number Verification: Label and marking cross-referenced against Bently Nevada part number database
- ✅ Packaging Integrity Check: Original or equivalent protective packaging confirmed prior to dispatch
- ✅ Traceability Documentation: Certificate of conformance and test records available upon request
- ✅ Secure Export Packaging: Anti-static, moisture-barrier packaging for international air and sea freight
How to Order
- Submit an Inquiry: Use the contact form on this page or email support@konmask.com with your part number and required quantity.
- Receive a Quote: Our technical sales team will respond within 1 business day with pricing, lead time, and availability.
- Order Confirmation: Confirm your purchase order; we accept T/T bank transfer, PayPal, and other B2B payment methods.
- Shipment & Tracking: Parts are dispatched via DHL, FedEx, or UPS Express with full tracking provided.
- After-Sales Support: Our engineering team is available for installation guidance and system compatibility questions.
Why Choose Konmask.com?
- 🌐 Global B2B Supplier — Serving industrial clients in 50+ countries across Asia, Europe, the Americas, and the Middle East
- 🔧 Technical Expertise — Our team includes experienced control system engineers who understand your application requirements
- 📦 In-Stock Availability — Extensive inventory of Bently Nevada, Emerson, ABB, Siemens, and Rockwell Automation parts
- ⚡ Fast Turnaround — Same-day quotation; express shipping available for urgent plant maintenance needs
- 📋 Full Documentation — Datasheets, certificates of conformance, and customs documentation provided
- 🤝 Long-Term Partnership — Preferred supplier for MRO procurement teams and EPC contractors worldwide
Frequently Asked Questions
Q: Is the 21000-28-05-15-028-04-02 a direct OEM replacement?
A: Yes. This is an original Bently Nevada part number. It is a direct replacement for existing 3300 XL installations without any field modification.
Q: What is the lead time for this part?
A: Lead time depends on current stock levels. Please contact us for real-time availability. Express delivery (2–5 business days internationally) is available for in-stock items.
Q: Can Konmask.com supply the complete 3300 XL transducer system?
A: Yes. We supply complete probe, extension cable, driver, and monitor assemblies. Contact us with your full BOM for a consolidated quotation.
Q: Do you provide a warranty on this part?
A: We offer a standard 12-month warranty against manufacturing defects. Please refer to our warranty policy for full terms.
Q: What documentation is available?
A: We can provide the Bently Nevada product datasheet, certificate of conformance, and packing list. Contact us to request documentation prior to purchase.
Q: Is this part suitable for API 670 compliant installations?
A: The Bently Nevada 3300 XL system is widely used in API 670 compliant machinery protection systems. Please verify your specific installation requirements with your machinery OEM or rotating equipment engineer.
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