21128-02-03 Bently Nevada - Sensor Housing

21128-02-03 Velocity Transducer Housing by Bently Nevada — Water and Corrosion Resistant

Technical Specifications

• Brand: Bently Nevada
• Model: 21128-02-03
• Category: Velocity Transducer Housing
• Material: 303 stainless steel for durability and corrosion resistance
• Mounting Thread and Cap Option: 02 = 3/4-in 14 NPT
• Cable Exit Fitting Option: 03 = 1/2-in NPT, explosion-proof and cable grip 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
• 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
• Environmental Protection: Designed to meet NEMA 4X and IP65 requirements when properly installed

Compatible Models and Options

• The 21128 housing is preferred for most non-hazardous environmental conditions.
• The CA21128 is the explosion-proof version certified by CSA for Classes I, II, and III, Division 1, Groups B, C, D, E, F, and G.
• The CA21128 must be ordered and shipped with a CSA-approved velocity sensor installed in the assembly.
• The BA42608 housing is used for BASEEFA-approved installations requiring compliance with BS EN 60079-14.
• The BA42608 provides environmental and physical protection to comply with the IP65 rating defined in IEC standard 144.
• Each housing is now available with a tall cap option.
• The tall cap option is required when installing a Velomitor CT in a housing.
• The tall cap option is also required when installing a 9200 or 74712 Seismoprobe with an isolated base into the 21128 housing.
• When using the 21128 Housing, cable part number 89477-AA is necessary to connect the Velomitor Sensor to a monitor.

FAQ

• Q: What is the temperature range of the 21128-02-03?
  A: The housing operates from -29°C to +121°C (-20°F to +250°F).
• Q: Is the 21128-02-03 submersible?
  A: No, it resists moisture and corrosion but is not submersible.
• Q: What material is the housing made of?
  A: It is constructed of 303 stainless steel for durability.
• Q: What mounting thread does the 21128-02-03 use?
  A: It uses a 3/4-in 14 NPT mounting thread and cap option.
• Q: What cable exit fitting comes with this housing?
  A: It includes a 1/2-in NPT explosion-proof and cable grip fitting.
• Q: When do I need the tall cap option?
  A: You need it for a Velomitor CT or an isolated-base 9200 or 74712 Seismoprobe in the 21128 housing.
• Q: Which cable connects a Velomitor Sensor to a monitor?
  A: Cable part number 89477-AA connects the Velomitor Sensor to a monitor.
• Q: Is the 21128-02-03 explosion-proof?
  A: The 21128 is for non-hazardous areas; choose CA21128 for explosion-proof CSA-certified use.
• Q: What is the weight of the housing?
  A: It weighs 1.6 kg (3.55 lb) without a velocity sensor or fittings.
• Q: What O-ring material does it use?
  A: It uses a Neoprene O-ring for sealing.

Contact Information

• Inquiries: sales@nex-auto.com
• WhatsApp: +86 153 9242 9628
• Partner NexAuto Technology Limited: https://www.nex-auto.com/