Bently Nevada 21128-02-01 Velocity Transducer Housing for Harsh Environments

Technical Specifications Breakdown

Key parameters for the 21128-02-01 are listed below for quick reference:

Application Environments and Use Cases

This housing is designed for non-hazardous locations where moisture and physical abuse are concerns. Typical applications include:

• Pump and compressor monitoring – where water spray or washdown is routine.
• Conveyor systems – where debris impact or corrosion may occur.
• General machinery protection – in areas with high humidity or occasional liquid exposure.

For hazardous environments, the CA21128 explosion-proof version (CSA certified for Classes I, II, III, Division 1, Groups B through G) is available. The BA42608 housing supports BASEEFA-approved installations requiring IP65 per IEC 144.

Installation and Setup Guidance

Proper installation is critical to achieving the NEMA 4X and IP65 ratings. Ensure the housing is correctly sealed at all entry points. The 21128-02-01 uses a 3/4-in 14 NPT mounting thread and a 1/2-in NPT cable exit plug. When using a Velomitor CT sensor, a tall cap option is required. For connecting the Velomitor sensor to a monitor, cable part number 89477-AA is necessary. Always follow manufacturer guidelines for torque and sealing.

Maintenance and Reliability

The 303 stainless steel construction and neoprene O-ring provide resistance to corrosion and moisture. Inspect the O-ring periodically for wear or damage, especially after exposure to extreme temperatures or chemicals. The housing is not submersible; avoid prolonged immersion. Regular visual checks ensure the seal integrity remains intact.

Durable Protection for Critical Velocity Measurements

In industrial environments, velocity sensors face constant threats from hose-directed water, corrosive agents, physical impact, and other adverse conditions. The Bently Nevada 21128-02-01 velocity transducer housing delivers robust protection engineered to maintain measurement integrity. Constructed from 303 stainless steel, this housing meets NEMA 4X and IP65 requirements when properly installed, ensuring reliable operation in demanding settings.

Selection Guide and Purchasing Advice

When selecting a velocity transducer housing, consider the environmental classification of your installation. For non-hazardous areas with moisture and corrosion risks, the 21128-02-01 is the preferred choice. If explosion-proof certification is required, order the CA21128 with a CSA-approved sensor. AutoDCSTech stocks the 21128-02-01 and can advise on compatible sensors and accessories. Please verify current lifecycle status and availability with AutoDCSTech before ordering.