Home
21128-01-03 Bently Nevada - Velocity Transducer Housing
1
/
of
3
21128-01-03 Bently Nevada - Velocity Transducer Housing
No reviews
In stock (14 units), ready to be shipped
-
Vendor:
Bently Nevada
-
Type:
Velocity Transducer Housing
-
Country of Origin:
USA
-
Dimensions:
15*7*8cm
- Weight:
200 g
- Tags: Velocity transducer housing
21128-01-03 Velocity Transducer Housing by Bently Nevada
Key Technical Specifications
- Brand: Bently Nevada
- Model: 21128-01-03
- Category: Velocity Transducer Housing
- Housing Material: 303 stainless steel for strong corrosion resistance
- Environmental Rating: Meets NEMA 4X and IP65 when installed correctly
- Temperature Range: -29°C to +121°C (-20°F to +250°F)
- Moisture Resistance: Resists moisture and corrosion, but is not submersible
- O-ring Material: Neoprene for a secure environmental seal
- Weight: 1.6 kg (3.55 lb) without sensor or fittings
- Outlet Port Size: 1/2-in NPT
- Internal Mounting Thread: 1/2-in 20 UNF for 21128 and CA21128
- Internal Mounting Thread: 5/8-in 18 UNF-2B for BA42608
Mounting and Cap Options
- Mounting Thread and Cap Option: 01 means unthreaded base with 28.5 mm (1.125 in) diameter
- Cable Exit Fitting Option: 03 means 1/2-in NPT explosion-proof and cable grip fittings
- Tall Cap Option: Required for a Velomitor CT installed inside a housing
- Tall Cap Option: Also required for a 9200 or 74712 Seismoprobe with isolated base in a 21128 housing
- Cable Part Number: 89477-AA connects a Velomitor Sensor to a monitor when using the 21128 Housing
Installation Guide
- Verify the housing model and thread option before you begin installation.
- Install the compatible velocity sensor into the internal mounting thread.
- Use cable part number 89477-AA to connect a Velomitor Sensor to a monitor.
- Confirm the cable exit fitting matches your 1/2-in NPT system.
- Choose the tall cap option when you install a Velomitor CT or specific Seismoprobe models.
- Check the O-ring and sealing surfaces to maintain IP65 protection.
- Do not submerge the housing because it resists moisture but is not submersible.
- Follow local electrical and safety codes for hazardous or non-hazardous areas.
Package List
- 1 x Bently Nevada 21128-01-03 Velocity Transducer Housing
- 1 x Neoprene O-ring
- 1 x 1/2-in NPT explosion-proof and cable grip fitting
- 1 x Unthreaded base with 28.5 mm (1.125 in) diameter
- Mounting hardware as supplied by the manufacturer
Shipping and Support
- We keep this item in stock and ship it within 5 days.
- We use common express carriers such as FedEx, UPS, and DHL.
- We accept returns within 30 days.
- This product is brand new and original.
FAQ
-
Q: What is the temperature range of the 21128-01-03 housing?
A: The housing operates from -29°C to +121°C (-20°F to +250°F). -
Q: Does this housing meet NEMA 4X and IP65 requirements?
A: Yes, it meets NEMA 4X and IP65 when you install it properly. -
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 in this housing?
A: Use cable part number 89477-AA to connect the sensor to a monitor. -
Q: When do I need the tall cap option?
A: You need it for a Velomitor CT or for a 9200 or 74712 Seismoprobe with isolated base in a 21128 housing. -
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 a velocity sensor or fittings.
Contact Information
Inquiries: sales@nex-auto.com or +86 153 9242 9628.
Partner NexAuto Technology Limited: https://www.nex-auto.com/
Fast & Reliable Shipping
Quick worldwide delivery
keeps your automation projects on schedule.
Genuine & Trusted
All components are 100% authentic
ensuring reliable performance for your systems.
- Express Delivery
- 12 Months Warranty
- 30 Days Easy Returns

Customer Support
Get Help When You Need It Most
Here to Assist Your Automation Needs
Contact us for pricing, product details, or order assistance — our experts are available to help.
Know Your Return Rights
You have 30 days to return a product if it doesn’t meet your requirements. See the full policy for details.














