Bently Nevada 21022-00-00-017-00 – Dual Axial Probe Housing Assembly | 3300 Series Vibration Monitoring Platform
Engineering Background
The Bently Nevada 3300 Series represents the industry benchmark for continuous machinery protection and condition monitoring in rotating equipment applications. Deployed across power generation, oil & gas, petrochemical, and heavy industrial facilities worldwide, the 3300 platform delivers the measurement accuracy and system reliability that critical asset protection demands. The 21022-00-00-017-00 Dual Axial Probe Housing Assembly is a precision-engineered mechanical interface component designed to mount and align eddy-current proximity probes in dual-axial configurations, enabling simultaneous measurement of shaft vibration in two orthogonal planes.
Product Positioning
This housing assembly is the preferred solution for procurement engineers and reliability teams sourcing certified replacement or expansion hardware for existing Bently Nevada 3300 Series installations. It eliminates field-fabricated mounting solutions, ensures repeatable probe positioning geometry, and maintains full compatibility with the 3300 Series signal conditioning and monitoring electronics. Konmask.com supplies this component from verified inventory with full traceability documentation available upon request.
Complete Technical Specifications
- Part Number: 21022-00-00-017-00
- Description: Dual Axial Probe Housing Assembly
- Manufacturer: Bently Nevada (Baker Hughes)
- Compatible Platform: 3300 Series Machinery Monitoring System
- Configuration: Dual axial (X–Y plane, 90° offset)
- Probe Compatibility: 3300 Series eddy-current proximity probes (standard tip diameters)
- Housing Material: Stainless steel / corrosion-resistant alloy (OEM specification)
- Mounting Interface: Threaded probe entry with locknut retention
- Weight: 3,600 g (nominal, including hardware)
- Ingress Protection: Suitable for industrial environments per OEM design standard
- Certifications: OEM manufactured; CE / ATEX compatibility subject to installation configuration
- Country of Origin: USA (Bently Nevada OEM)
Proven Application Environments
- Steam and gas turbine shaft vibration monitoring (axial + radial)
- Centrifugal compressor rotor dynamic measurement
- Large electric motor bearing proximity sensing
- Pump and fan train vibration surveillance
- Gearbox input/output shaft monitoring
- API 670-compliant machinery protection systems
- Offshore platform and FPSO rotating equipment
- Refinery and petrochemical critical service trains
Engineering Advantages
- Dual-plane measurement: Simultaneous X–Y vibration capture in a single compact housing reduces installation complexity and probe cable routing.
- Precision alignment geometry: Factory-machined probe bores maintain the 90° orthogonal relationship required for accurate orbit plot generation and API 670 compliance.
- OEM dimensional compatibility: Direct drop-in replacement for existing 3300 Series installations — no field modification required.
- Robust construction: Corrosion-resistant materials withstand harsh process environments including high humidity, hydrocarbon atmospheres, and elevated temperatures.
- Reduced commissioning time: Pre-assembled housing eliminates on-site fabrication and alignment verification steps.
System Architecture & Signal Flow
In a complete Bently Nevada 3300 Series installation, the 21022-00-00-017-00 housing positions two eddy-current proximity probes at the bearing journal location. Each probe generates a voltage signal proportional to the gap between probe tip and rotating shaft surface. These signals are routed via armored extension cables to 3300 Series proximitor/oscillator modules, which condition the raw signals into industry-standard –24 VDC output. The monitor rack then processes these conditioned signals for vibration amplitude, phase, and orbit display, with configurable alarm and trip setpoints protecting the machine from damaging vibration levels.
Signal path: Probe tip → Extension cable → Proximitor module → 3300 Monitor rack → DCS/PLC integration
Sourcing & Quality Verification
- All units sourced from authorized distribution channels or verified surplus with full chain-of-custody documentation
- Pre-shipment inspection includes dimensional verification, thread integrity check, and visual examination per IPC-A-610 workmanship standards
- Serialization and date code records available upon request for critical service applications
- Konmask.com maintains a no-counterfeit policy — all Bently Nevada components are subject to authenticity verification before listing
- Certificate of Conformance (CoC) available for qualified orders
Procurement Process
- Confirm compatibility: Verify your existing 3300 Series probe model and housing mounting thread specification against the 21022-00-00-017-00 datasheet.
- Request a quote: Contact support@konmask.com with your required quantity, delivery timeline, and any documentation requirements (CoC, test reports).
- Order placement: Purchase orders accepted via the online store or by email. Net payment terms available for qualified accounts.
- Shipping: DHL / FedEx international express standard; freight forwarding and consolidated shipment options available for large orders.
- After-sales support: Technical assistance available for installation, commissioning, and system integration questions.
Technical FAQ
Q: Is the 21022-00-00-017-00 compatible with 3500 Series monitors?
A: This housing is designed and dimensioned for the 3300 Series platform. While probe thread dimensions may be similar, system compatibility with 3500 Series should be confirmed against Bently Nevada’s cross-reference documentation before procurement.
Q: Can this housing be used in ATEX Zone 1 classified areas?
A: The housing itself is a passive mechanical component. ATEX compliance of the complete measurement loop depends on the probe model, extension cable, and proximitor module selected. Consult Bently Nevada’s hazardous area product selection guide for your specific zone classification.
Q: What is the recommended probe gap for axial vibration measurement?
A: Standard Bently Nevada 3300 Series proximity probes are typically gapped to the midpoint of the linear range, commonly 1.0–1.5 mm (40–60 mil) depending on probe tip diameter and target material. Refer to the specific probe installation manual for exact gap specifications.
Q: Do you offer expedited shipping for shutdown/turnaround situations?
A: Yes. Contact support@konmask.com with your urgency requirements. We maintain stock for rapid dispatch and can coordinate next-flight-out courier arrangements for critical outage situations.
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