BENTLY NEVADA 128275-01E – Expansion Faceplate | 3500 Series Machinery Protection Platform
Engineering Background
The Bently Nevada 3500 Series is the industry benchmark for continuous online machinery protection in rotating equipment applications — turbines, compressors, pumps, and motors across oil & gas, power generation, and petrochemical facilities. The 128275-01E Expansion Faceplate is a structural and functional accessory within the 3500 rack architecture, enabling modular slot expansion and maintaining system integrity in high-density monitoring configurations.
Product Positioning
Designed for procurement engineers and reliability teams who require genuine, traceable components to maintain rack completeness, satisfy FAT/SAT requirements, and ensure long-term system serviceability. The 128275-01E is a non-negotiable BOM item when expanding or replacing 3500 Series rack assemblies in critical machinery protection loops.
Complete Technical Specifications
| Part Number | 128275-01E |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Series / Platform | 3500 Machinery Protection System |
| Component Type | Expansion Faceplate |
| Form Factor | Single-slot rack faceplate, 3500 rack compatible |
| Material | Anodized aluminum alloy panel |
| Weight | Approx. 1,200 g (shipping weight) |
| Mounting | Front-panel rack mount, tool-secured |
| Compatibility | 3500/05, 3500/15, 3500/20, 3500/22, 3500/25, 3500/32, 3500/40, 3500/42, 3500/44, 3500/45, 3500/50, 3500/60, 3500/61, 3500/62, 3500/64, 3500/70, 3500/72, 3500/77, 3500/92, 3500/93 rack modules |
| Revision | Rev E (128275-01E) |
| Condition | New / Surplus New / Refurbished (specify at inquiry) |
| Lead Time | Subject to stock availability — contact for confirmation |
| Export Classification | EAR99 (verify with your trade compliance team) |
Proven Application Environments
- Oil & Gas: Upstream compressor trains, LNG liquefaction turbines, pipeline booster stations
- Power Generation: Steam turbine-generator sets, gas turbine protection racks, hydro unit monitoring
- Petrochemical & Refining: Reactor charge pump protection, cracked gas compressor monitoring
- Marine & Offshore: FPSO machinery protection systems, offshore platform critical rotating equipment
- Pulp & Paper / Mining: High-availability fan and pump protection in continuous-process environments
Engineering Advantages
- Rack Integrity: Maintains EMI shielding and structural rigidity of the 3500 rack chassis when a module slot is unoccupied
- Modular Scalability: Enables phased expansion of monitoring points without compromising existing channel configurations
- OEM Dimensional Compliance: Precision-machined to Bently Nevada rack tolerances — no field modification required
- Revision E Baseline: Latest hardware revision ensures compatibility with current 3500 firmware and rack backplane standards
- Reduced Downtime Risk: Stocking this faceplate eliminates rack-level delays during module swap or system expansion outages
System Architecture & Signal Flow
The 3500 Series rack operates on a modular backplane architecture. Each slot accepts a dedicated monitor module (vibration, temperature, speed, position, etc.) connected via the backplane to the 3500/20 rack interface module and 3500/15 power supply. The 128275-01E Expansion Faceplate occupies unused rack slots, preserving the sealed front-panel environment required for:
- Maintaining IP/NEMA enclosure ratings of the rack assembly
- Preventing ingress of particulates and moisture into the backplane connector area
- Sustaining EMI/RFI shielding continuity across the full rack width
- Satisfying SIL-rated installation requirements where rack completeness is audited
Sourcing & Quality Verification
- Traceability: All units sourced with available documentation (OEM packaging, date codes, or refurbishment records as applicable)
- Inspection: Visual and dimensional inspection performed prior to shipment
- Authenticity: Konmask sources exclusively from authorized distributors, certified surplus channels, and verified OEM stock — counterfeit-risk mitigation is a core procurement standard
- Documentation: Certificate of conformance, packing list, and commercial invoice provided with every shipment
- Returns: 30-day DOA policy; contact support@konmask.com within 72 hours of receipt for any discrepancy
Procurement Process
- Submit RFQ: Email support@konmask.com with your required quantity, condition preference (new/surplus/refurbished), and delivery timeline
- Receive Quote: Pricing and lead time confirmed within 1 business day for in-stock items
- Order Confirmation: Pro-forma invoice issued; payment via T/T, L/C, or approved credit terms
- Shipment: DHL / FedEx / sea freight with full tracking; export documentation included
- After-Sales: Technical support available post-delivery for installation verification queries
Technical FAQ
Q: Is the 128275-01E interchangeable with other 3500 Series faceplates?
A: The 128275-01E is a slot-specific expansion faceplate. Confirm your rack slot width and mounting pattern against the 3500 Series rack documentation (GEH-6721) before ordering.
Q: Does this faceplate carry any active electronics?
A: No. The 128275-01E is a passive mechanical component. It does not interface with the backplane electrically and requires no firmware or configuration.
Q: Can I use this in a SIL 2 certified installation?
A: The 3500 Series is SIL 2 capable per IEC 61511. The faceplate itself is a non-functional safety component; consult your functional safety engineer for SIL loop documentation requirements.
Q: What is the typical lead time for surplus stock?
A: In-stock surplus units typically ship within 3–5 business days. New OEM stock lead times vary; contact us for current availability.
Q: Do you provide ATEX/IECEx certified units?
A: Certification status depends on unit provenance. Specify your hazardous area classification at the time of RFQ and we will confirm documentation availability.
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