21128-11-01 Bently Nevada Sensor Housing

21128-11-01 Bently Nevada Velocity Transducer Housing

Technical Specifications of 21128-11-01

• Brand: Bently Nevada
• Model: 21128-11-01
• Category: Velocity Transducer Housing
• Mounting Thread and Cap Option: 11 = Unthreaded base, 28.5 mm (1.125 in) diameter with tall cap
• Cable Exit Fitting Option: 01 = 1/2-in NPT plug
• 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 unthreaded base diameter fits your machine mounting point before installation.
• Use the 28.5 mm (1.125 in) base with tall cap for compatible sensors.
• Seal the 1/2-in NPT outlet with the supplied plug when no cable exits.
• 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 21128-11-01 Velocity Transducer Housing
• One Neoprene O-ring
• One 1/2-in NPT plug for the cable exit port
• Unthreaded base with tall cap as specified by option 11
• FedEx, UPS, or DHL shipping options available at checkout

FAQ

• Q: What is the temperature range for this housing?
  A: The 21128-11-01 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: Yes, option 11 includes a tall cap for Velomitor CT or isolated base Seismoprobe installations.
• Q: What is the mounting base size?
  A: Option 11 provides an unthreaded base with a 28.5 mm (1.125 in) diameter.
• Q: What is the cable exit fitting?
  A: Option 01 provides a 1/2-in NPT plug for the outlet port.
• 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/