Bently Nevada 21128-12-02 Velocity Transducer Housing, NEMA 4X, IP65

Technical Specifications Breakdown

Key parameters for the 21128-12-02 are listed below for quick reference:

Industry Applications

The 21128-12-02 withstands hose-directed water and corrosive atmospheres, making it suitable for washdown areas and coastal installations. Its robust design reduces sensor replacement costs and unplanned downtime.

Installation & Setup Guidance

Mount the housing securely using the 3/4-in 14 NPT thread. Ensure the cable exit fitting (1/2-in NPT) is properly sealed to maintain NEMA 4X/IP65 integrity. When installing a Velomitor CT sensor, the tall cap is required. For 9200 or 74712 Seismoprobe sensors with isolated base, the tall cap is also necessary. Use cable part number 89477-AA to connect the sensor to a monitor.

Maintenance & Reliability

Inspect the neoprene O-ring periodically for cracks or compression set. Verify that all fittings remain tight to preserve moisture resistance. Clean the 303 stainless steel surface with mild detergent and water; avoid abrasive cleaners that could damage the finish. The housing is not submersible, so keep it above standing water levels.

Robust Protection for Velocity Sensors

Industrial environments expose vibration monitoring equipment to water, corrosion, and physical abuse. The Bently Nevada 21128-12-02 velocity transducer housing provides a durable shield for velocity sensors in non-hazardous areas. Constructed from 303 stainless steel, this housing meets NEMA 4X and IP65 requirements when properly installed, ensuring reliable operation in harsh conditions.

Compatibility & Integration

The 21128-12-02 is designed for Bently Nevada velocity sensors. It accepts sensors with 1/2-in 20 UNF internal mounting thread. For BA42608 sensors, the internal thread is 5/8-in 18 UNF-2B. The tall cap accommodates Velomitor CT and isolated-base Seismoprobe models.

Selection Guide & Purchasing Advice

When selecting a housing, verify sensor compatibility and environmental requirements. The 21128-12-02 is preferred for non-hazardous areas. For hazardous locations, consider alternative models. Contact AutoDCSTech for current lifecycle status and availability before ordering. AutoDCSTech stocks genuine Bently Nevada parts to support your maintenance needs.