Turbine & Rotating Machinery Vibration Monitoring Solution — Bently Nevada 21000-34-05-15-029-04-02 | 3300 XL Series
Where This Product Is Used
The Bently Nevada 21000-34-05-15-029-04-02 Proximity Probe Housing Assembly is engineered for continuous, non-contact vibration and position measurement in the most demanding rotating machinery environments. Typical deployment sites include:
- Steam & Gas Turbines — shaft radial vibration monitoring at bearing journals
- Centrifugal & Axial Compressors — rotor dynamic displacement measurement in petrochemical and LNG plants
- Pumps & Fans — early-warning vibration detection in power generation and water treatment facilities
- Gearboxes — gear mesh frequency and shaft orbit analysis
- Marine Propulsion Systems — shaft monitoring in offshore and naval applications
- Paper & Steel Mills — roll and spindle runout measurement in continuous process lines
Wherever API 670 machinery protection is mandated, this housing assembly provides the mechanical interface that keeps the probe precisely positioned and environmentally sealed.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 21000-34-05-15-029-04-02 |
| Series | Bently Nevada 3300 XL / 21000 Series |
| Type | Proximity Probe Housing Assembly |
| Probe Thread | M10 × 1 (metric, standard) |
| Housing Material | 316 Stainless Steel |
| Cable Length Compatibility | Designed for standard 3300 XL extension cable configurations |
| Temperature Range | –40 °C to +177 °C (–40 °F to +350 °F) |
| IP Rating | IP67 (dust-tight, immersion-resistant) |
| Mounting | Threaded boss / bracket mount |
| Weight | Approx. 1,100 g (assembly) |
| Compliance | API 670, CE |
| Country of Origin | USA |
Why Engineers Specify This Model
- Exact OEM Geometry — maintains the precise gap (typically 1.0–2.5 mm) required for linear eddy-current response without field re-calibration
- 316 SS Construction — resists H₂S, chlorides, and process fluids common in refinery and offshore environments
- Drop-in Replacement — fully interchangeable with existing 3300 XL probe installations; no wiring or conditioner changes required
- Sealed Cable Entry — integral compression fitting prevents moisture ingress and maintains signal integrity in wash-down zones
- Vibration-Resistant Locking — jam-nut design prevents probe back-out under high-cycle fatigue conditions
- Long Service Life — non-contact sensing principle eliminates mechanical wear; housing rated for 10+ years continuous service
Complete System Bill of Materials
For a fully functional Bently Nevada eddy-current proximity system, the following components are typically required:
- Proximity Probe — e.g., 330103-00-06-10-02-00 (8 mm, 5 m cable)
- Housing Assembly — 21000-34-05-15-029-04-02 (this item)
- Extension Cable — e.g., 330130-080-00-00 (8 m)
- Proximitor® Sensor / Driver — e.g., 3300 XL 8 mm Proximitor (330180-X1-05)
- 3500 Rack Monitor — 3500/42M Proximitor / Seismic Monitor module
- I/O Module & Termination Board — per rack configuration
Contact support@konmask.com for complete BOM quotations and system integration support.
Compliance & Industry Standards
- API 670 — Machinery Protection Systems (5th Edition)
- IEC 61511 — Functional Safety for SIS applications
- ATEX / IECEx — consult factory for zone-rated configurations
- CE Marking — EMC Directive 2014/30/EU
- RoHS Compliant — Directive 2011/65/EU
Quality Assurance & Sourcing
Every unit offered by Konmask.com undergoes a structured incoming inspection protocol:
- Visual and dimensional inspection against OEM drawings
- Thread gauge verification (M10 × 1 go/no-go)
- Material certification review (316 SS mill cert on file)
- Functional continuity check of cable entry seal
- Serialization and traceability documentation provided with shipment
We source exclusively from authorized distributors and verified surplus channels. All parts are shipped with a Certificate of Conformance (CoC) and 12-month warranty against manufacturing defects.
How to Source This Part
Ready to order or need a formal quotation?
- Add to Cart — for immediate purchase with secure checkout
- Request a Quote — email support@konmask.com with your PO number, required quantity, and delivery timeline
- Bulk / Project Orders — volume pricing available for 5+ units; contact us for a project BOM review
- Expedited Shipping — DHL Express, FedEx International Priority, and UPS Worldwide available; typical lead time 3–7 business days
- Export Documentation — commercial invoice, packing list, and ECCN classification provided for all international shipments
Application-Specific FAQ
Q: Is this housing compatible with 5 mm and 8 mm Bently Nevada probes?
A: This housing is configured for the 8 mm probe family within the 3300 XL series. Please confirm your probe diameter before ordering; we stock housings for both 5 mm and 8 mm variants.
Q: Can this assembly be used in ATEX Zone 1 hazardous areas?
A: The standard housing is not ATEX-certified. For Zone 1 / Zone 2 installations, please contact us for the appropriate Ex-rated variant and associated Zener barrier or galvanic isolator.
Q: What is the recommended probe gap for this housing?
A: Per Bently Nevada calibration data, the linear range is typically 0.25–2.54 mm (10–100 mil). The housing geometry is designed to facilitate initial gap setting at 1.27 mm (50 mil) — the midpoint of the linear range.
Q: Do you provide installation and commissioning support?
A: Yes. Our engineering team can provide remote commissioning guidance, gap-setting procedures, and Proximitor output verification checklists. Contact support@konmask.com.
Q: What is your return policy for this part?
A: Unused parts in original condition may be returned within 30 days. Custom-configured or serialized assemblies are non-returnable. See our full returns policy at konmask.com.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
