Bently Nevada 24701-28-05-05-064-03-02 303 stainless steel probe housing assembly with 6.4 in penetration and hazardous area approvals.

Features and benefits

• Stainless steel construction ensures durability and corrosion resistance

• CSA-certified and explosion-proof for safe use in hazardous environments

• Fully compliant with API 670 standards for externally mounted proximity probes

• Includes dome cover, threaded ports, O-rings, and optional standoff adapter

• Supports adjustable sleeve lengths with optional probe supports for long installations

• Compatible with intrinsically safe proximity probes for flexible industrial applications

Specific Application

• External proximity probe mounting and high-accuracy vibration monitoring on heavy-duty industrial rotating machinery (e.g., steam turbines, multi-stage boiler feed pumps, and large compressors).
• Severe industrial mounting setups requiring heavy-duty 303 stainless steel structural housing protection against corrosive elements, saltwater mist, or active process washes.
• Deep bearing casing installations requiring a 6.4-inch stainless steel penetration sleeve to safely route the probe tip straight to internal shaft target surfaces.

System Compatibility, Alternative Models, and Differences

• System Compatibility:
  Fully compatible with standard Bently Nevada 3300 XL 8mm proximity transducer loops and Proximitor sensors via its pre-installed 3300 XL 8mm probe. The assembly interfaces directly with industrial plant networks using standard 3/4-14 NPT conduit lines.
• Alternative Model (Aluminum Enclosure Variant):
  21000-28-05-05-064-03-02 (Aluminum Proximity Probe Housing Assembly)
• Key Differences between 24701 (Stainless Steel) and 21000 (Aluminum):

Main Body Material: The 24701 features a heavy-duty, cast 303 stainless steel body, whereas the 21000 configuration is built from lightweight aluminum.

Mechanical Hardware Weight: The 24701 has a typical baseline mass of 1.8 kg (4.1 lb), making it significantly heavier than the 21000 aluminum housing which weighs around 1.1 kg (2.4 lb).

Environmental Resilience: The 303 stainless steel 24701 enclosure provides superior corrosion and chemical protection in coastal, offshore, or aggressively humid petrochemical plant environments compared to the aluminum version.

Ordering Information

• FAQ
• Q1: What type of material is used for the 24701-28-05-05-064-03-02 housing?
  A1: It is made of stainless steel for strength and corrosion resistance.
•  
• Q2: Is the 24701-28-05-05-064-03-02 suitable for hazardous areas?
  A2: Yes, it is explosion-proof and CSA-certified for hazardous environments.
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• Q3: Does this housing comply with industry standards?
  A3: Yes, it meets API 670 standards for externally mounted proximity probe housings.
•  
• Q4: Can it accommodate long probe sleeves?
  A4: Yes, optional sleeve supports are available for sleeves longer than 304 mm (12 inches).
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• Q5: Is it compatible with intrinsically safe probes?
  A5: Yes, it can be used with hazardous-area approved, intrinsically safe proximity probes.

• Accessories

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• Individual Probe Sleeve for 21000/24701 Proximity Probe Housings
• 44382-AAA

• The individual probe sleeve length does not include the distance from the end of the sleeve to the probe tip or the gap from the probe tip to the target material. If only the part number of the original housing is known, and the sleeve cannot be measured, use the following table to determine the sleeve length: