Bently Nevada 21128-02-01 Velocity Transducer

Bently Nevada Velocity Transducer Housing

The Bently Nevada 21128-02-01 MOD 148264-02 provides robust protection for velocity sensors in demanding industrial environments. This housing safeguards sensitive transducers from water exposure, corrosion, and physical damage. Its 303 stainless steel construction meets NEMA 4X and IP65 standards when properly installed.

Key Features & Protection Ratings

• Constructed from 303 stainless steel for maximum durability and corrosion resistance
• Meets NEMA 4X and IP65 requirements when correctly installed for environmental protection
• Designed specifically for non-hazardous environmental conditions and general industrial use
• Features moisture and corrosion resistance while maintaining electrical protection
• Now available with tall cap option for compatibility with Velomitor CT sensors
• Provides essential protection against hose-directed water and physical abuse

Technical Specifications

• Operating temperature range: -29°C to +121°C (-20°F to +250°F)
• Mounting thread: 3/4-in 14 NPT for secure installation
• Cable exit fitting: 1/2-in NPT plug for proper cable management
• Internal mounting thread: 1/2-in 20 UNF for sensor compatibility
• Outlet port size: 1/2-in NPT standard configuration
• Sealing: Neoprene O-rings provide reliable environmental sealing

Physical Characteristics

• Total weight: 1.6 kg (3.55 lb) without velocity sensor or fittings
• Stainless steel construction ensures long-term reliability in harsh conditions
• Designed to accommodate standard velocity transducers and sensors
• Robust design protects against physical impact and environmental stress
• Compact yet durable housing for easy integration into existing systems
• Maintains sensor performance while providing superior external protection

Application & Compatibility

• Ideal for protecting velocity sensors in industrial machinery monitoring applications
• Required when installing 9200 or 74712 Seismoprobe with isolated base
• Compatible with Velomitor CT sensors when using tall cap option
• Use cable part number 89477-AA to connect Velomitor Sensor to monitor
• Perfect for manufacturing, power generation, and industrial processing environments
• Provides necessary protection for continuous monitoring systems in challenging conditions

Installation & Configuration

• Easy installation with standard NPT mounting threads for quick deployment
• Proper installation required to maintain NEMA 4X and IP65 ratings
• Includes MOD 148264-02 accessory for enhanced functionality
• Designed for straightforward sensor integration and maintenance access
• Tall cap version available for specific sensor compatibility requirements
• Standard industrial mounting for versatile application across industries

Environmental Protection

• Provides superior water and corrosion resistance for extended service life
• Note: Housing is not submersible despite high moisture resistance
• Neoprene O-rings ensure reliable sealing across temperature range
• Protects against hose-directed water and environmental contaminants
• Maintains integrity in temperature extremes from -29°C to +121°C
• Ideal for outdoor and harsh indoor industrial environments

Frequently Asked Questions

• What environments is this housing designed for? Non-hazardous conditions with moisture and corrosion concerns
• What is the temperature operating range? -29°C to +121°C (-20°F to +250°F)
• Is the housing submersible? No, it is moisture resistant but not designed for submersion
• When is the tall cap option required? For Velomitor CT sensors or 9200/74712 Seismoprobe with isolated base
• What cable is needed for Velomitor sensors? Cable part number 89477-AA is required for proper connection