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SKU:21000-28-10-20-028-04-02
21000-28-10-20-028-04-02 Bently Nevada 3300 XL Probe Assembly
Manufacturer: Bently Nevada
Product No.: 21000-28-10-20-028-04-02
Product Type: Housing Assembly
Product Origin: USA
Payment:T/T, Western Union
Weight: 1100g
Shipping port: Xiamen
Warranty: 12 months
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Description
Bently Nevada 21000-28-10-20-028-04-02 Proximity Probe Housing Assembly
The Bently Nevada 21000-28-10-20-028-04-02 is a heavy-duty proximity probe housing assembly engineered for critical machinery vibration and position monitoring in hazardous industrial environments. Compliant with the API 670 standard, this assembly combines a 3300 XL 8 mm proximity probe with hazardous area approvals housed inside a corrosion-resistant aluminum body and 304 stainless steel sleeve.
Technical Specifications
| Brand / Manufacturer | Bently Nevada / Baker Hughes |
| Complete Part Number | 21000-28-10-20-028-04-02 |
| Product Family / Series | 21000 Series Proximity Probe Housing Assembly |
| Probe Type & Diameter | 3300 XL 8 mm Proximity Transducer Probe |
| Probe Penetration Length | 2.8 inches (71.12 mm) [Option -28] |
| Standoff Adapter Length | 2.0 inches (50.8 mm) [Option -10] |
| Probe Cable Length | 1.0 meter / 39 inches [Option -20] |
| Housing Material Construction | Aluminum Body with 304 Stainless Steel Sleeve |
| Mounting Thread & Conduit Fittings | 3/4-14 NPT Mounting Thread | Includes 1 × 3/4-14 NPT Plug [Option -04] |
| Hazardous Area Approval | CSA Explosion-Proof Class I, Div 1 / Class II / Class III [Option -02] |
| Temperature Ratings | Operating: -50°C to +80°C | Safety: T5 (-50°C to +40°C), T4 (-50°C to +80°C) |
| Dimensions & Net Weight | Net Weight: 1.10 kg (2.40 lbs) |
| Industry Compliance | API 670 Standard Compliant |
Quick Installation Guide
- Verify target machine casing dimensions to confirm the 2.8-inch penetration and 2.0-inch standoff lengths fit the installation port.
- Thread the 3/4-14 NPT housing sleeve into the machine port using approved hazardous-area thread sealant.
- Adjust probe gap distance to target shaft surface according to system calibration specifications prior to final lock-down.
- Route probe extension cable through explosion-proof conduit system and seal unused ports with the provided 3/4-14 NPT plug.
Technical FAQs
Q1: What hazardous area certifications does the option -02 approval rating carry?
A1: It carries CSA explosion-proof approvals for Class I, Division 1 and 2, Groups B, C, D; Class II, Groups E, F, G; and Class III environments.
Q2: Why is the standoff adapter length important for housing selection?
A2: The standoff adapter allows fine adjustment of the overall probe length outside the machine casing to ensure correct penetration into target areas.
Q3: Can the housing withstand harsh outdoor industrial environments?
A3: Yes, the combination of an aluminum body and 304 stainless steel sleeve delivers exceptional corrosion resistance and mechanical durability.
Additional Specifications
Scalar (V/f)
Vector
AC-powered
Buying Guide
- Confirm the exact model, part number, and specifications before ordering.
- Ensure compatibility with your current machinery or control systems.
- Reach out via sale@etowonauto.com or +8617859788089 for technical assistance.
- Review delivery options, lead times, and shipping requirements.
- Follow manufacturer instructions and best practices during installation.
Shipping And Return
In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.
Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.
For more details, please review our Shipping & Return Policy.

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