I/O Modules PLC & I/O Modules

Bently Nevada 21128-03-02 Velocity Transducer Housing, NEMA 4X/IP65

On Request
Brand: Bently Nevada
Product No. 21128-03-02
Model 21128-03-02
Origin US
Condition New
Warranty One Year

The Bently Nevada 21128-03-02 is a 303 stainless steel velocity transducer housing with 1/2-in NPT mounting, rated -29°C to +121°C, NEMA 4X/IP65, and neoprene O-ring. Ideal for protecting sensors in harsh industrial environments.

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Product Description

Technical Specifications Breakdown

Key parameters for the 21128-03-02 are listed below for quick reference:

Feature Specification
Material 303 stainless steel
Mounting Thread 1/2-in 14 NPT (option 03)
Cable Exit Fitting 1/2-in NPT, explosion-proof (option 02)
Temperature Rating -29°C to +121°C (-20°F to +250°F)
Moisture Protection Resistant to moisture and corrosion; not submersible
O-ring Material Neoprene
Weight 1.6 kg (3.55 lb) without sensor or fittings
Environmental Rating NEMA 4X / IP65 (when properly installed)

Application Scenarios for the 21128-03-02

This housing is preferred for non-hazardous locations where moisture and corrosion resistance are critical. Typical uses include:

  • Pump and compressor monitoring: Protects velocity transducers from water spray and chemical exposure in process plants.
  • Turbine vibration sensing: Shields sensors from physical abuse and environmental contaminants in power generation.

Figure 2: Technical layout and connection details for the Bently Nevada 21128-03-02 industrial automation component.

Installation Guidance

Proper installation ensures the NEMA 4X/IP65 seal. Use the 1/2-in NPT mounting thread (option 03) for secure attachment. The cable exit fitting (option 02) is explosion-proof for added safety. When using a Velomitor sensor, cable part number 89477-AA is required to connect to the monitor. For Velomitor CT or Seismoprobe sensors with isolated base, the tall cap option is necessary. Always follow manufacturer guidelines for torque and sealing.

Maintenance and Reliability

Inspect the neoprene O-ring periodically for cracks or deformation. Clean the housing exterior with mild detergent; avoid abrasive cleaners. Verify that all fittings remain tight to maintain the IP65 seal. The 303 stainless steel construction resists corrosion, but regular visual checks are recommended in aggressive environments.

Robust Protection for Velocity Sensors in Harsh Conditions

Industrial environments expose velocity sensors to water spray, corrosive agents, and physical impact. The Bently Nevada 21128-03-02 provides a durable 303 stainless steel enclosure designed to meet NEMA 4X and IP65 requirements when properly installed. This housing shields sensors from hose-directed water, corrosion, and physical abuse, ensuring reliable operation in demanding settings.

Figure 1: Front view of the Bently Nevada 21128-03-02 industrial automation component showing its physical design and enclosure.

Selection Guide and Purchasing Advice

Choose the 21128-03-02 for standard non-hazardous applications requiring robust environmental protection. For explosion-proof needs, order the CA21128 with a CSA-approved sensor. For BASEEFA-approved installations, use the BA42608 housing. Contact AutoDCSTech to verify lifecycle status and availability before ordering. We stock genuine Bently Nevada parts to support your critical machinery monitoring systems.

· Last updated:

Availability & Condition at AutoDCSTech

Part Number21128-03-02
AvailabilityIn Stock
ConditionNew
WarrantyOne Year
OriginUS

Frequently Asked Questions

Technical Specifications

Product Type I/O Modules
SKU / Part Number 21128-03-02
Model 21128-03-02
Country of Origin US
Condition New
Warranty One Year
Stock Status On Request
Instruction Manual 1784050344-Bently_Nevada_21128-03-02_Manual

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