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107770-04-01 Bently Nevada Velocity Transducer Housing — Top Exit, M8
What Is the Bently Nevada 107770-04-01?
When you need reliable vibration monitoring in hazardous environments, the 107770-04-01 from Bently Nevada delivers a factory-integrated solution. This velocity transducer housing combines a 330500 Velomitor Sensor with a 21128 Housing, preinstalled for immediate use. It is rated for CENELEC Zone 1, Group IIC hazardous area applications, ensuring safe operation in explosive atmospheres.
The 107770-04-01 features a 1/2-14 BSP mounting thread and a 1/2-14 NPT plug for cable exit. It complies with the RoHS Directive 2011/65/EU, meeting modern environmental standards. As a buyer's guide, this article helps you evaluate whether this model fits your specific needs.

Key Features & Technical Specs
- Model: 107770 - Velocity Transducer Housing – CENELEC approved
- Mounting Thread Option: 04 = 1/2-14 BSP
- Cable Exit Fitting Option: 01 = 1/2-14 NPT plug
- Hazardous Area Rating: CENELEC Zone 1, Group IIC
- RoHS Compliance: Directive 2011/65/EU
One distinctive spec is the CENELEC Zone 1, Group IIC rating, which allows the 107770-04-01 to operate safely in environments with explosive gases, reducing risk and downtime. For parameters not listed here, refer to the official Bently Nevada datasheet.
Industry Applications & Use Cases
In oil and gas refineries, the 107770-04-01 monitors rotating machinery like pumps and compressors in hazardous zones. For chemical processing plants, it provides critical vibration data to prevent equipment failure. Additionally, in power generation facilities, this transducer housing helps maintain uptime by detecting early signs of wear. Its CENELEC approval ensures compliance with strict safety regulations across these industries.

Installation & Setup Guide
Mount the 107770-04-01 using the 1/2-14 BSP thread into a compatible sensor port. Secure the cable exit with the provided 1/2-14 NPT plug to maintain environmental sealing. Ensure all connections meet the entity parameters listed in the hazardous area conditions of safe use. For Zone 0/1, use cable type A or B per EN 60079-25. Always follow the manufacturer's manual for proper wiring and torque specifications.
Maintenance & Reliability
Periodically inspect the 107770-04-01 for signs of physical damage or corrosion, especially in harsh environments. Verify that the cable exit fitting remains tight to prevent moisture ingress. Regular calibration checks ensure accurate vibration readings, extending the service life of your monitoring system. By choosing this factory-integrated unit, you reduce installation errors and improve long-term reliability.
Compatibility & Integration
The 107770-04-01 integrates with Bently Nevada monitoring systems that accept velocity transducer inputs. It works with cables type A or B as per EN 60079-25 for hazardous area compliance. For specific controller or network compatibility, consult the official documentation or contact Petro Auto Tech for guidance.
Common Questions About the 107770-04-01
What is the mounting thread size for the 107770-04-01?
The mounting thread option is 1/2-14 BSP.
Is the 107770-04-01 suitable for Zone 0 hazardous areas?
Yes, it is rated for CENELEC Zone 0/1, Group IIC, provided it is connected to equipment meeting the entity parameters.
What cable types are required for Zone 0/1 installations?
Use cable type A or B in compliance with EN 60079-25, respecting the cable parameters listed with the entity parameters.
Does the 107770-04-01 include the Velomitor sensor?
Yes, it combines a 330500 Velomitor Sensor with a 21128 Housing, preinstalled at the factory.
What is the cable exit fitting option?
The cable exit fitting option is a 1/2-14 NPT plug.
Product Support & Availability
The 107770-04-01 is in stock and ready to ship from Petro Auto Tech. As a trusted supplier, we offer new and original factory-packed units with a 12-month warranty. Contact our team for pricing and delivery options.
| Part Number | 107770-04-01 |
| Condition | In Stock |
| Stock Status | In Stock (Ready to Ship) |
| Weight | 0.5 kg |
| Warranty | 12 Month |
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Warranty
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