Product Overview
When unplanned downtime hits a hazardous-area turbine or compressor train, every hour of waiting for a certified transducer housing costs money. The Bently Nevada 107770-03-03 Velocity Transducer Housing – CENELEC approved is built for exactly those high-stakes environments. This factory-assembled unit combines a 330500 Velomitor Sensor with a 21128 Housing, preinstalled and ready for demanding oil, gas, and industrial automation applications. As a ready-to-ship spare from Oil AutoTech, it keeps your condition-monitoring loop intact without long lead times.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 107770-03-03 |
| Model | 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 |
| Hazardous Area Rating | CENELEC Zone 1, Group IIC |
| ATEX/IECEx Zones | Zone 0/1, Zone 2 |
| Condition | New & Original in Factory Packing |
| Manufacturer | Bently Nevada |
| RoHS | Directive 2011/65/EU |
What These Specs Mean in Practice
The 1/2-14 NPT mounting thread is a widely used industry standard, so the 107770-03-03 fits common machine casing ports without adapters. The matching explosion-proof cable exit with cable gland seal protects the wiring interface in wet, dusty, or corrosive plant environments. The CENELEC Zone 1, Group IIC rating means this housing is approved for atmospheres where hydrogen or other Group IIC gases may be present — a critical distinction for refineries and offshore platforms.
Hazardous Area Applications
In oil and gas, vibration monitoring is not optional. This housing suits three common scenarios:
- Refinery compressor trains — Zone 1 areas around hydrogen-rich process gas require Group IIC-rated equipment. The 107770-03-03 meets that bar.
- Offshore platform turbine packages — salt-laden air and vibration demand a sealed, explosion-proof cable interface. The cable gland seal on this unit handles that.
- Pipeline pump stations — remote locations reward equipment that installs quickly and stays reliable. The factory-preinstalled sensor-and-housing combination reduces field assembly time.
Installation and Setup
Because the 330500 Velomitor Sensor and 21128 Housing arrive preinstalled, field work focuses on mounting and wiring. Thread the housing into the 1/2-14 NPT port, torque to plant specification, and route the cable through the explosion-proof gland. Follow the manufacturer’s safety manual and your site’s hazardous-area procedures for all connections. In Zone 0/1, connect only to equipment meeting the listed entity parameters, and use Type A or B cables per EN 60079-25 with matching cable parameters. In Zone 2, do not exceed the supply electrical parameters stated in the manufacturer’s tables. If you need help confirming compatibility with your existing monitoring system, Oil AutoTech offers hands-on technical selection support.
Maintenance and Reliability
Vibration transducer housings are passive mechanical assemblies, so maintenance is straightforward. Inspect the mounting thread and cable gland periodically for corrosion, looseness, or seal degradation. In harsh chemical environments, shorten inspection intervals. A secure, sealed housing protects the sensor inside and preserves signal integrity — which directly protects your machinery protection system’s ROI. Keep a spare on the shelf: fast dispatch, worldwide, means you avoid extended downtime when a housing is damaged during turnaround work.
Why Buy the 107770-03-03 from Oil AutoTech
This unit ships new and original in factory packing, backed by a 12-month factory warranty. Oil AutoTech specializes in fast-dispatch spares for oil, gas, and industrial automation, so you get practical answers and quick worldwide delivery. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Contact Oil AutoTech today for pricing and availability.
