Product Overview
The Bently Nevada 21000-34-00-15-018-03-02 is a Proximity Probe Housing Assembly designed for reliable vibration monitoring in critical rotating machinery. This new, original unit comes in factory packing and includes a 12-month warranty. The 21000 series housings protect reverse mount proximity probes in demanding industrial environments, ensuring accurate measurements and long service life.
Key Features & Specifications
The 21000-34-00-15-018-03-02 offers robust construction and flexible configuration options. Key specifications include:
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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: Not required (00)
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Standoff Adapter: 1.5 inches (15)
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Probe Penetration: 1.8 inches (018)
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Fitting Option: One 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and one cable seal grip with grommets for cable sizes 1/8 to 3/16, 1/4 to 5/16, and 5/16 to 3/8 inches
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Mounting Thread: 3/4-14 NPT (02)
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Material: Aluminum body with 304 stainless steel sleeve
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Weight: 1.1 kg (2.4 lb) typical without fittings
Applications
This housing assembly is ideal for use in refineries, power plants, and other facilities where continuous monitoring of shaft vibration and position is essential. The 21000-34-00-15-018-03-02 is designed to meet the American Petroleum Institute's API 670 standard, making it suitable for externally mounted proximity probes in turbo-machinery. Its explosion-proof rating and CSA Type 4 enclosure ensure safe operation in hazardous areas.
Installation & Setup
When installing the 21000-34-00-15-018-03-02, ensure the mounting thread (3/4-14 NPT) is properly sealed to maintain the enclosure rating. The standoff adapter (1.5 in) determines the probe gap; follow the manufacturer's guidelines for setting the initial air gap. The probe penetration of 1.8 inches allows for correct positioning within the housing. Always route cables through the provided cable seal grip and tighten grommets to match the cable diameter.
Maintenance & Reliability
Regular inspection of the housing for corrosion, gasket integrity, and cable condition is recommended. The aluminum body with stainless steel sleeve resists environmental degradation, reducing maintenance frequency and extending service life. Replacing worn O-rings during routine maintenance ensures a continued tight seal and prevents moisture ingress.
Compatibility & Integration
The 21000-34-00-15-018-03-02 is compatible with Bently Nevada 3300 XL 8 mm proximity probes (with connector protector). It can be integrated with Bently Nevada monitoring systems, such as 3500 series, for real-time vibration data acquisition. The housing provides a standard 3/4-14 NPT conduit connection, simplifying installation in existing conduit systems.
Selection Guide & Purchasing Advice
Before ordering, verify your probe cable length requirement and confirm the mounting thread matches your installation. If you need a different standoff adapter length, note that the -02 mounting thread must be ordered when the standoff adapter is not -00. This unit is new and original from the factory. For a dependable supply of genuine Bently Nevada parts, PLC Source PRO offers this model with full warranty and technical support.