21128-01-01 | Bently Nevada Velocity Transducer Housing IP65

What Is the 21128-01-01?

When harsh environments threaten sensor reliability, the 21128-01-01 from Bently Nevada delivers robust protection. This velocity transducer housing shields sensors from hose-directed water, corrosion, and physical abuse. Constructed from 303 stainless steel, it meets NEMA 4X and IP65 requirements when properly installed. The housing is preferred for non-hazardous conditions, offering a cost-effective solution that extends sensor life and reduces replacement expenses.

Key Features & Technical Specs

• Temperature Rating: -29°C to +121°C (-20°F to +250°F) ensures reliable operation in extreme conditions, minimizing downtime.
• Moisture Resistance: Resistant to moisture and corrosion but not submersible, reducing maintenance costs.
• Weight: 1.6 kg (3.55 lb) without sensor or fittings, lightweight for easy installation.
• Mounting Thread: 1/2-in 20 UNF internal thread for secure sensor attachment.
• Outlet Port: 1/2-in NPT for flexible cable routing.
• O-ring Material: Neoprene ensures a reliable seal against contaminants.
• Cap Option: Unthreaded base, 28.5 mm (1.125 in) diameter, simplifies integration.

Cost-Benefit & ROI

Investing in the 21128-01-01 reduces long-term costs by preventing sensor damage. Its stainless steel construction withstands corrosion, avoiding frequent replacements. The IP65 rating eliminates the need for additional enclosures in wet environments. Over time, this housing lowers total cost of ownership by extending sensor service life and reducing unplanned maintenance.

Installation Guide

Mount the housing securely using the 1/2-in 20 UNF internal thread. Route the cable through the 1/2-in NPT outlet and tighten the plug. Ensure the O-ring is properly seated to maintain the IP65 seal. Use cable part number 89477-AA to connect the Velomitor sensor to a monitor. Verify the temperature rating matches your environment before installation.

Routine Care

Inspect the housing periodically for signs of corrosion or seal degradation. Replace the neoprene O-ring if damaged to maintain moisture resistance. Clean the exterior with a damp cloth; avoid submersing the unit. Regular checks prevent costly sensor failures and extend equipment life.

FAQs about 21128-01-01

Q: What is the temperature rating of the 21128-01-01?

A: The housing is rated for -29°C to +121°C (-20°F to +250°F).

Q: Is the 21128-01-01 submersible?

A: No, it is resistant to moisture and corrosion but is not submersible.

Q: What cable is needed with the 21128-01-01?

A: Use cable part number 89477-AA to connect the Velomitor sensor to a monitor.

Q: What is the weight of the housing?

A: The housing weighs 1.6 kg (3.55 lb) without the sensor or fittings.

Product Support & Availability

The 21128-01-01 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead times. We ensure fast delivery to keep your operations running.