1. Overview

2. Specifications

• Model: 88269-01 / 128229-01
• Structure Type: Flange Connector
• Connection Method: 2-Bolt Thread
• Material: Usually metal (specific material may be cast iron or stainless steel, depending on the specific application)
• Application Scope: Suitable for sensor fixation on small and medium-sized chassis or structures

3. Product Features

• High Reliability: Made of high-strength metal materials, it can work for a long time in high-temperature and high-vibration environments, ensuring the stability of the sensor position and preventing sensor displacement or damage caused by vibration.
• Easy Installation: Standard flange bolt interface design allows fixation with only two bolts, enabling a quick installation process without special tools or additional adjustments.
• Good Compatibility: As a standard component of the Bently Nevada series, it can seamlessly cooperate with various sensors of the brand (such as piezoelectric sensors, accelerometers, etc.).
• Low Maintenance: With a simple structure and no moving parts, it requires minimal maintenance after long-term use.

4. Structure and Composition

• Flange Body: The main metal disc-shaped connector that provides the contact surface and connection surface for sensor fixation.
• Bolt Connection: Usually equipped with two 1/2″ or 5/8″ bolts (specific specifications may vary by regional standards) to fix the flange to the machine surface.
• Gasket (Optional): Depending on the installation environment, a spring washer or metal gasket may be required to compensate for uneven surfaces or provide additional vibration damping effect.

5. Application Fields

• Power Industry: Vibration monitoring of bearing housings for generators, steam turbines, and gas turbines.
• Oil and Gas Industry: Monitoring of equipment such as centrifugal compressors, reciprocating compressors, and pipeline pumps.
• Chemical and Pharmaceutical Industry: Condition monitoring of large centrifugal pumps, reactors, and turbocompressors.
• Marine and Offshore Platforms: Probe fixation for main propulsion systems and auxiliary generators.
• Papermaking and Metallurgy Industry: Bearing vibration monitoring of large rolling mills and fans.

6. Installation and Maintenance

Installation

1. Determine the sensor installation position (usually outside the bearing housing or casing).
2. Clean the installation surface to ensure no oil stains or rust.
3. Align the 88269-01 flange with the installation holes and insert two bolts.
4. Fix the Bently Nevada sensor (such as a piezoelectric accelerometer) to the center of the flange through threads or a clamp.
5. Check the alignment angle of the sensor to ensure the sensitive axis is consistent with the monitoring direction.

Maintenance

1. Regularly check the bolt tightness to prevent loosening caused by long-term vibration.
2. Check if the gasket (if used) is aged or damaged, and replace it if necessary.
3. Ensure the connection between the sensor and the flange is tight without gaps.