Bently Nevada 21000-00-00-15-050-00-02 Proximity Probe Housing Assembly

Technical Specifications Breakdown

Key parameters for the 21000-00-00-15-050-00-02 are listed below for quick reference:

Application in Rotating Machinery Protection

Maintenance engineers rely on this housing to mount proximity probes on compressors, turbines, and pumps. The 5-inch probe penetration (050) allows the sensor to reach the target shaft without interference. The standoff adapter with minimum 1.5-inch length (15) provides flexibility for different machine geometries. By ensuring a rigid, sealed mounting point, the assembly reduces false readings caused by vibration or environmental contamination.

Installation and Setup Guidance

When installing the 21000-00-00-15-050-00-02, verify that the mounting thread (3/4-14 NPT) matches the machine port. Use appropriate thread sealant to maintain the explosion-proof integrity. The dome cover screws into the body; ensure O-rings are seated properly to preserve the Type 4 seal. Conduit connections should be made to the threaded ports using approved fittings. Always follow the wiring diagram referenced in the CSA certification (drawing 140979) for non-incendive circuits.

Designed for Hazardous Area Reliability

This housing assembly is engineered for continuous duty in classified locations. It holds CSA certification for explosion-proof applications in Class I Divisions 1 and 2 Groups C and D, Class II Divisions 1 and 2 Groups E, F, and G, and Class III. The enclosure is rated Type 4, providing protection against splashing water and dust ingress. Temperature ratings are T5 @ Ta = -50°C to +40°C and T4 @ Ta = -50°C to +80°C. This makes the 21000-00-00-15-050-00-02 suitable for refineries, chemical plants, and gas processing facilities where flammable atmospheres exist.

Maintenance and Long-Term Reliability

Periodically inspect the housing for signs of corrosion or mechanical damage, especially in corrosive atmospheres. Check that the dome cover and conduit fittings remain tight. The aluminum body with 304 stainless steel sleeve offers good resistance to many industrial chemicals. If the assembly is exposed to extreme temperatures, verify the T-rating matches the area classification. Replace any damaged O-rings during routine maintenance to keep the enclosure seal intact.

Robust Protection for Critical Vibration Monitoring

For maintenance engineers overseeing rotating machinery, reliable vibration data is non-negotiable. The Bently Nevada 21000-00-00-15-050-00-02 Proximity Probe Housing Assembly provides a secure, explosion-proof enclosure for proximity probes in harsh industrial environments. This assembly is designed to meet the demanding requirements of API 670, ensuring consistent performance in applications where safety and uptime are paramount.

Compatibility and Standards Compliance

This housing is fully compliant with API 670, the American Petroleum Institute standard for externally mounted proximity probe housings. It is also RoHS compliant per Directive 2011/65/EU. For intrinsically safe applications, order hazardous area approved proximity probes separately. Note that CA21000 housings are for North American end users only; standard 21000 housings serve other regions.

Selection and Purchasing Advice

When ordering the 21000-00-00-15-050-00-02, confirm that the probe and cable are not required (suffix codes 00) as per your setup. The mounting thread option 02 (3/4-14 NPT) is mandatory when the standoff adapter length is not 00. AutoDCSTech stocks this assembly as new and original in factory packing, backed by a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.