21128-12-01 Bently Nevada Velocity Transducer Housing

Bently Nevada 21128-12-01 Velocity Transducer Housing with 3/4-in NPT Mounting

Key Technical Specifications

• Brand: Bently Nevada
• Model: 21128-12-01
• Category: Velocity Transducer Housing
• Material: 303 stainless steel for reliable corrosion resistance
• Mounting Thread and Cap Option: 12 = 3/4-in 14 NPT 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

Compatible Sensors and Cable Requirements

• The 21128 housing suits most non-hazardous environmental conditions.
• Each housing now comes with a tall cap option for greater installation flexibility.
• You need the tall cap option when you install a Velomitor CT in a housing.
• You also need the tall cap option when you install a 9200 or 74712 Seismoprobe with an isolated base into the 21128 housing.
• When you use the 21128 Housing, cable part number 89477-AA connects the Velomitor Sensor to a monitor.

Installation Guide

• Verify the 3/4-in 14 NPT mounting thread matches your sensor before installation.
• Use the 1/2-in NPT outlet port with the supplied plug for a secure seal.
• Install the housing properly to achieve NEMA 4X and IP65 protection.
• Keep the Neoprene O-ring in good condition to maintain moisture and corrosion resistance.
• Do not submerge the housing in water or expose it beyond the rated temperature range.
• Use cable part number 89477-AA to connect a Velomitor Sensor to a monitor.

Package Contents

• 1 x Bently Nevada 21128-12-01 Velocity Transducer Housing
• 1 x Neoprene O-ring
• 1 x Tall cap
• 1 x 1/2-in NPT plug
• Mounting hardware as applicable

Shipping and Support

• We keep this item in stock and ship it within 5 days.
• We use common couriers such as FedEx, UPS, and DHL.
• We support returns within 30 days.
• We offer brand-new original products.

FAQ

• Q: What is the temperature range of the 21128-12-01 housing?
  A: The housing operates from -29°C to +121°C (-20°F to +250°F).
• Q: Is the 21128-12-01 housing submersible?
  A: No, it resists moisture and corrosion but is not submersible.
• Q: What material is the O-ring made of?
  A: The O-ring is made of Neoprene.
• Q: What is the mounting thread for option 12?
  A: Option 12 uses a 3/4-in 14 NPT mounting thread with a tall cap.
• Q: What cable do I need for a Velomitor Sensor with this housing?
  A: You need cable part number 89477-AA.
• Q: What is the outlet port size?
  A: The outlet port size is 1/2-in NPT.
• Q: What is the weight of the housing?
  A: The housing weighs 1.6 kg (3.55 lb) without the velocity sensor or fittings.

Contact Information

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