21128-04-03 Bently Nevada Velocity Transducer Housing

21128-04-03 Bently Nevada Velocity Transducer Housing

Technical Specifications of 21128-04-03

• Brand: Bently Nevada
• Model: 21128-04-03
• Category: Velocity Transducer Housing
• Mounting Thread and Cap Option: 04 = 1/2-in 14 BSP (G 1/2-in)
• Cable Exit Fitting Option: 03 = 1/2-in NPT, explosion-proof and cable grip fittings
• Temperature Rating: -29°C to +121°C (-20°F to +250°F)
• Moisture Resistance: Resistant to moisture and corrosion, but not submersible
• O-ring Material: Neoprene
• Weight: 1.6 kg (3.55 lb) without velocity sensor or fittings
• Outlet Port Size: 1/2-in NPT
• Internal Mounting Thread: 21128 and CA21128 use 1/2-in 20 UNF; BA42608 uses 5/8-in 18 UNF-2B
• Measurement Range: Compatible with standard velocity sensor outputs
• Frequency Response: Depends on the installed velocity sensor
• Sensitivity: Matches the paired velocity transducer
• Linearity: Maintains signal integrity when installed correctly
• Resolution: Supports precise vibration monitoring
• Anti-interference: Stainless steel body shields against external noise

Installation Guide

• Verify the mounting thread matches your machine port before installation.
• Use the 1/2-in 14 BSP (G 1/2-in) thread for secure mounting.
• Route cables through the 1/2-in NPT explosion-proof cable grip fitting.
• Install the Neoprene O-ring to maintain moisture and corrosion resistance.
• Do not submerge the housing in water or other liquids.
• Confirm the tall cap option if you use a Velomitor CT or isolated base Seismoprobe.

Package List

• One Bently Nevada 21128-04-03 Velocity Transducer Housing
• One Neoprene O-ring
• One cable grip fitting for 1/2-in NPT outlet
• Mounting thread adapter as specified by option 04
• FedEx, UPS, or DHL shipping options available at checkout

FAQ

• Q: What is the temperature range for this housing?
  A: The 21128-04-03 operates from -29°C to +121°C (-20°F to +250°F).
• Q: Can I use this housing underwater?
  A: No, it resists moisture and corrosion but is not submersible.
• Q: What cable do I need for a Velomitor Sensor?
  A: You need cable part number 89477-AA to connect it to a monitor.
• Q: Does this housing come with a tall cap?
  A: The tall cap option is available and required for Velomitor CT or isolated base Seismoprobe installations.
• Q: What is the mounting thread size?
  A: Option 04 provides a 1/2-in 14 BSP (G 1/2-in) mounting thread.
• Q: Is this item in stock?
  A: Yes, we keep this item in stock and ship within 5 days.
• Q: What is the return policy?
  A: We support 30-day returns for this product.
• Q: What shipping carriers do you use?
  A: We ship via FedEx, UPS, and DHL.
• Q: Is this a new original product?
  A: Yes, this is a brand new original Bently Nevada product.

Contact Information Inquiries: sales@nex-auto.com, +86 153 9242 9628

Partner NexAuto Technology Limited: https://www.nex-auto.com/