Product Overview
The Bently Nevada 21000-34-00-00-030-04-02 is a precision-engineered proximity probe housing assembly designed for reliable vibration monitoring in rotating machinery. This industrial automation module protects the probe and ensures accurate measurements in demanding environments.
With a 3.0-inch probe penetration and a 3/4-14 NPT mounting thread, this housing integrates seamlessly into existing monitoring systems. The aluminum body with a 304 stainless steel sleeve offers durability and corrosion resistance, making it suitable for harsh industrial settings.
Key Specifications
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Probe Option: 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals
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Probe Cable Length: 1.0 m (probe cable not required)
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Standoff Adapter: None
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Probe Penetration: 3.0 in
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Fitting Option: One 3/4-14 NPT plug
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Mounting Thread: 3/4-14 NPT
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Material: Aluminum body with 304 stainless steel sleeve
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Maximum (C) + (D) with visible probe (P/N and S/N): 17.0 in (43.18 cm)
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Maximum (C) + (D) Dimension: 32.9 in (83.5 cm)
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Weight: 1.1 kg (2.4 lb) typical, without fittings
Industry Applications
The 21000-34-00-00-030-04-02 excels in applications requiring continuous vibration monitoring, such as turbines, compressors, and pumps. Its CSA Type 4 enclosure rating and compliance with API 670 make it ideal for hazardous areas where explosion-proof performance is critical.
In petrochemical plants, this housing assembly provides reliable protection for proximity probes, ensuring accurate shaft vibration data even in extreme conditions. Its robust construction minimizes downtime, contributing to higher operational efficiency.
Installation & Setup Guidance
When installing the 21000-34-00-00-030-04-02, ensure the mounting thread (3/4-14 NPT) matches the machine's tapping. The probe penetration of 3.0 in must be verified against the target gap to achieve optimal measurement range. Tighten the dome cover securely to maintain the enclosure's integrity.
For hazardous area installations, confirm that the selected probe option includes the appropriate approvals. The optional standoff adapter is not used in this configuration, simplifying the setup.
Maintenance & Reliability
Regular inspection of the O-rings and thread seal is recommended to prevent moisture ingress. The aluminum body and stainless steel sleeve resist corrosion, but periodic cleaning of the conduit ports ensures unobstructed cable routing. With proper care, this housing assembly delivers long service life, reducing replacement costs.
Selection Guide & Purchasing Advice
Before ordering, verify the probe penetration and fitting options match your machine's specifications. The 3/4-14 NPT mounting thread is mandatory when no standoff adapter is used. Ensure your probe cable length (1.0 m) suits the distance to the monitoring system.
For guaranteed quality and authenticity, choose PLC Source PRO as your supplier. We offer new, factory-packed units with a 12-month warranty, ensuring reliable operation from day one.