CA21000-34-05-00-022-03-02 Bently Nevada Proximity Probe Housing Assembly
This Bently Nevada proximity probe housing assembly is engineered to mount and protect eddy-current probes in hazardous, heavy-duty industrial machinery. The all-metal, explosion-proof external enclosure enables external mounting and adjustment of proximity probes on heavy-duty turbomachinery.
Engineered as an all-metal, explosion-proof external enclosure, the Bently Nevada CA21000-34-05-00-022-03-02 allows for external mounting and adjustment of proximity probes on heavy-duty turbomachinery. It resolves the common operational pain point of machine disassembly during maintenance, allowing engineers to swap or calibrate sensors from the outside without shutting down critical processes. This makes it the ideal choice for API 670-compliant vibration and radial position monitoring in hazardous Class I, Division 1 and 2 industrial zones.
Key Specifications & Operational Value
- CA21000 Aluminum Body: High-strength aluminum housing with a 304 stainless steel probe sleeve. (Value: Delivers rugged physical protection against heavy industrial impact while keeping the overall assembly lightweight at just 1.1 kg for easy mounting.)
- 3300 XL 8 mm Probe with Protector (-34): Includes a reverse-mount probe with connector protection and multiple hazardous area approvals. (Value: Guarantees ultra-stable eddy-current signal transmission and structural shielding for fragile connectors in high-vibration zones.)
- 022 Probe Penetration: Specifically configured with a 2.2-inch (56 mm) probe depth. (Value: Permits precise mechanical reaching through thick machine casings to capture accurate shaft data without compromising the integrity of the oil seals.)
- CSA Explosion-Proof Certification: Rated for Class I, Div 1 & 2 (Groups C, D) and CSA Type 4 environmental enclosure standards. (Value: Provides complete moisture, dust, and gas sealing, allowing deployment in chemical refineries and oil/gas fields without risk of ignition.)
Expert Insights & Field Reliability
Engineer's Note:
"The CA21000 housing features machined mounting threads that provide approximately 5 to 7 full threads instead of standard NPT thread sizes. This specific design is intentional; it significantly increases mechanical mounting strength and stiffness, effectively resisting the constant, high-frequency structural micro-vibrations generated by heavy machinery bearings."
Project Case:
"This specific 2.2-inch penetration model was integrated onto large industrial air compressors at a nitrogen production facility in 2025. By utilising the external housing, the site eliminated the 4-hour machine shutdown process previously required just to inspect or adjust sensor gaps, maintaining continuous plant uptime during routine validation cycles."
Custom Product FAQ
Q: What specific hardware comes included with the -03 fittings option?
A: The -03 option provides one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and one cable seal grip equipped with three distinct grommets. This allows you to securely fit and seal variable field wire cable dimensions ranging from 1/8 to 3/8 inches.
Q: Why does this part number start with "CA" instead of the standard "21000"?
A: The "CA" prefix designates that the complete assembly is officially certified by CSA as explosion-proof. While standard 21000 aluminum housings can use explosion-proof individual components, only the official CA-certified models carry the necessary compliance stamps required by safety inspectors for explosive gas areas.
Q: Can I adjust the sensor's physical gap depth while the machine is running?
A: Yes. The core purpose of the dome-covered housing is to grant direct access to the probe sleeve and internal extension cable locknuts. You can unscrew the dome cover, adjust the probe's mechanical gap voltage using a multimeter, and lock it back down safely from outside the machine casing.
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Global Distribution Network
Amikon supplies industrial automation parts to more than 150 countries, covering a wide mix of regions.
The Americas: Especially the USA and Canada, where many older facilities like refineries or chemical plants rely on replacement parts.
Europe: Including Germany, UK, France and Italy, with focus on maintaining existing systems rather than new installations.
Asia-Pacific: Covering China, Japan, South Korea, Singapore and Australia, serving industries ranging from semiconductors to shipbuilding and mining.
Middle East and Africa: Including UAE, Saudi Arabia, Qatar and South Africa, focused on energy-related operations in oil, gas and power sectors.
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