107770-03-03 Bently Nevada Velocity Transducer Housing — 3/8-24 UNF Mount

Introduction to the 107770-03-03

When hazardous area vibration monitoring demands certified reliability, the 107770-03-03 from Bently Nevada delivers a factory-integrated solution. This velocity transducer housing combines the 330500 Velomitor sensor with a 21128 housing, preassembled and tested for immediate deployment. Rated for CENELEC Zone 1, Group IIC environments, it meets stringent ATEX and IECEx safety requirements.

Key Features and Technical Specifications

• Model: 107770 – Velocity Transducer Housing – CENELEC approved
• Mounting Thread Option: 03 = 1/2-14 NPT
• Cable Exit Fitting Option: 03 = 1/2-14 NPT explosion-proof with cable gland seal
• Compliance: RoHS Directive 2011/65/EU
• Hazardous Area Certification: ATEX/IECEx for Zone 0/1 and Zone 2

The 1/2-14 NPT mounting thread ensures robust mechanical attachment, while the explosion-proof cable exit fitting maintains integrity in volatile atmospheres. This combination simplifies field installation and reduces potential leak paths.

Applications and Use Cases

Industries such as oil and gas, chemical processing, and power generation rely on the 107770-03-03 for continuous vibration monitoring of rotating machinery. In Zone 1 environments, its CENELEC approval allows direct installation without additional barriers. For Zone 2 areas, the supply electrical parameters must not exceed the values specified in the entity tables, ensuring safe operation.

Installation and Setup

Mount the housing using the 1/2-14 NPT thread onto a compatible sensor pad. Route the cable through the explosion-proof fitting and tighten the gland seal to maintain hazardous area integrity. Connect the sensor leads to a monitoring system that meets the entity parameters listed in the ATEX/IECEx documentation. Always follow the manufacturer’s manual for wiring torque values and grounding requirements.

Maintenance and Reliability

Periodically inspect the cable gland and mounting thread for signs of corrosion or loosening. Verify that the explosion-proof seal remains intact. Because the housing is factory-sealed, no internal maintenance is required. Regular checks align with predictive maintenance strategies, reducing unplanned downtime.

Compatibility and Integration

The 107770-03-03 integrates with Bently Nevada monitoring systems that accept Velomitor sensor inputs. Its prewired assembly simplifies connection to 3500 series racks or other compatible platforms. For systems requiring type A or B cables per EN 60079-25, ensure cable parameters match the entity parameters provided in the safety documentation.

FAQ about the 107770-03-03

What is the mounting thread size for the 107770-03-03?

The mounting thread option is 1/2-14 NPT.

Is the 107770-03-03 approved for hazardous areas?

Yes, it is CENELEC approved for Zone 1, Group IIC, and also meets ATEX/IECEx requirements for Zone 0/1 and Zone 2.

Does the 107770-03-03 come preassembled?

Yes, it is a factory combination of the 330500 Velomitor sensor and a 21128 housing.

What cable exit fitting does the 107770-03-03 use?

It uses a 1/2-14 NPT explosion-proof fitting with a cable gland seal.

Is the 107770-03-03 RoHS compliant?

Yes, it complies with RoHS Directive 2011/65/EU.

Product Support and Availability

The 107770-03-03 is in stock and ready to ship from Petro Auto Tech. Contact our team for current lead times and bulk pricing.