Product Overview
The Bently Nevada 21000-34-00-15-018-04-02 is a precision-engineered Proximity Probe Housing Assembly designed for reliable vibration monitoring in rotating machinery. This industrial automation module provides a robust, explosion-proof enclosure for 3300 XL 8 mm proximity probes, ensuring accurate measurements in demanding environments.
Built with an aluminum body and a 304 stainless steel sleeve, the 21000-34-00-15-018-04-02 offers excellent corrosion resistance and mechanical strength. It is CSA Type 4 certified and fully compliant with the American Petroleum Institute's API 670 Standard, making it a trusted choice for externally mounted proximity probe housings in the oil, gas, and power generation industries.
Technical 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
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Standoff Adapter: 1.5 in
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Probe Penetration: 1.8 in
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Fitting Option: One 3/4-14 NPT plug only
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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 21000-34-00-15-018-04-02 is ideal for monitoring shaft vibration and axial position in critical rotating equipment such as turbines, compressors, and pumps. Its explosion-proof design makes it suitable for hazardous areas where flammable gases or vapors may be present.
In the oil and gas sector, this housing assembly ensures reliable operation of vibration monitoring systems on large rotating machinery. In power plants, it helps maintain the health of generators and steam turbines, reducing unplanned downtime and maintenance costs.
Installation & Setup Guidance
Proper installation is crucial for accurate readings. Mount the housing using the 3/4-14 NPT thread, ensuring a secure and leak-tight fit. The standoff adapter length of 1.5 in and probe penetration of 1.8 in must be matched to the machine's internal clearance. Verify the probe cable length (1.0 m) is sufficient for the routing path. Use the provided NPT plug to seal unused ports. Always follow the manufacturer's guidelines for hazardous area installations.
Maintenance & Reliability
Routine inspection of the housing and probe is recommended. Check for any signs of physical damage, corrosion, or loosening of fittings. The aluminum body and stainless steel sleeve resist most industrial environments, but periodic cleaning of the probe tip and connector is advised to maintain measurement accuracy. The robust construction minimizes the need for frequent replacements, offering long-term cost savings.
Buying Guide
When ordering the 21000-34-00-15-018-04-02, verify the suffix codes match your requirements: probe option (34), cable length (00), standoff adapter (15), probe penetration (018), fitting option (04), and mounting thread (-02). This configuration includes a 3300 XL 8 mm probe with connector protector, no probe cable, 1.5 in standoff, 1.8 in penetration, and a single 3/4-14 NPT plug. PLC Source PRO offers this product new and in original factory packing with a 12-month warranty. Ensure the model number matches your system's specifications before purchasing.