Bently Nevada 21128-11-02 Velocity Transducer Housing, NEMA 4X

Technical Specifications Breakdown

Key parameters for the 21128-11-02 are listed below for quick reference:

Industrial Applications

The tall cap option accommodates Velomitor CT sensors, as well as 9200 or 74712 Seismoprobe sensors with isolated bases. For non-hazardous environments, the 21128 housing is the preferred choice, offering robust protection without the complexity of hazardous-area enclosures.

Installation Guidance

When installing the 21128-11-02, ensure the housing is properly sealed to maintain NEMA 4X and IP65 integrity. Use cable part number 89477-AA to connect a Velomitor sensor to a monitor. The 1/2-in NPT explosion-proof fitting provides secure cable entry. Verify that the O-ring is seated correctly before final assembly.

Maintenance and Reliability

Inspect the housing periodically for signs of corrosion or damage, especially in harsh chemical environments. The neoprene O-ring should be checked for wear and replaced if necessary to maintain the moisture seal. The 303 stainless steel construction offers corrosion resistance, but regular cleaning is recommended to prevent buildup of contaminants.

Harsh Environment Protection for Velocity Sensors

In industrial environments, velocity sensors face constant threats from hose-directed water, corrosive chemicals, and physical impact. The Bently Nevada 21128-11-02 velocity transducer housing solves this challenge by providing a rugged, sealed enclosure that meets NEMA 4X and IP65 requirements when properly installed. Constructed from 303 stainless steel, this housing ensures long-term reliability in demanding conditions.

Compatibility and Integration

The 21128-11-02 is designed for use with Bently Nevada velocity transducers, including Velomitor CT, 9200, and 74712 Seismoprobe sensors. The unthreaded base with 28.5 mm diameter simplifies mounting in existing installations. The tall cap provides necessary clearance for sensor installation.

Selection Guide and Purchasing Advice

When selecting a velocity transducer housing, consider the environmental conditions and sensor type. The 21128-11-02 is suitable for non-hazardous areas requiring NEMA 4X/IP65 protection. For hazardous locations, consult Bently Nevada for appropriate enclosures. AutoDCSTech offers this housing with fast shipping and expert support. Please verify current lifecycle status and availability with AutoDCSTech before ordering.