Bently Nevada 21128-13-01 Velocity Transducer Housing – Corrosion-Resistant Protection

Technical Specifications Breakdown

Key parameters for the 21128-13-01 are listed below for quick reference:

Industry Applications and ROI

Oil & Gas Refineries

In refineries, hose-directed water and corrosive chemicals frequently damage unenclosed sensors. The 21128-13-01 housing eliminates repeat sensor failures, saving thousands in replacement parts and labor per year.

Chemical Processing Plants

Corrosive atmospheres degrade standard enclosures quickly. The 303 stainless steel construction and neoprene O-ring provide long-term sealing, reducing annual maintenance costs by up to 30% compared to painted steel alternatives.

Water Treatment Facilities

Moisture-resistant but not submersible, this housing protects sensors in splash zones. The tall cap option allows installation of Velomitor CT or 9200 Seismoprobe sensors, maximizing equipment utilization without additional housing purchases.

Installation Guidance for Maximum Value

Proper installation ensures the NEMA 4X and IP65 ratings are achieved. Use the 1/2-in NPT outlet for cable entry and seal all threads with approved sealant. The tall cap accommodates isolated-base sensors, avoiding the cost of a separate adapter. When using the 21128 Housing with a Velomitor sensor, cable part number 89477-AA is necessary for connection to a monitor.

Maintenance and Reliability Best Practices

Inspect the neoprene O-ring annually for cracks or compression set. Replace if degraded to maintain moisture seal. Clean the 303 stainless steel surface with mild detergent; avoid abrasive cleaners that could compromise corrosion resistance. The housing is designed for non-hazardous environments; for hazardous locations, order the CA21128 explosion-proof version.

Cost-Effective Protection for Velocity Sensors

Industrial environments expose velocity sensors to water, corrosion, and physical abuse. The Bently Nevada 21128-13-01 velocity transducer housing prevents costly sensor damage and unplanned downtime. Constructed from 303 stainless steel, this housing meets NEMA 4X and IP65 requirements when properly installed, reducing replacement expenses and maintenance labor.

Compatibility and Integration

The 21128-13-01 is compatible with Bently Nevada velocity sensors including Velomitor CT, 9200, and 74712 Seismoprobe with isolated base. The tall cap is required for Velomitor CT installations. For BASEEFA-approved installations, use the BA42608 housing with 5/8-in 18 UNF-2B internal thread.

Selection Guide and Purchasing Advice

Choose the 21128-13-01 for non-hazardous areas requiring NEMA 4X/IP65 protection. Verify lifecycle status with AutoDCSTech before ordering. We stock this housing to support your maintenance budget and reduce lead times.