31000-28-10-00-020-03-02 | Bently Nevada 8 mm Probe Housing

Introduction to the Bently Nevada 31000-28-10-00-020-03-02

In the demanding world of industrial rotating machinery, reliable vibration monitoring is essential. Over the years, proximity probe systems have evolved to meet stricter environmental and safety standards. The 31000-28-10-00-020-03-02 from Bently Nevada represents this evolution, offering a robust housing solution for 3300 XL 8 mm probes. It is designed to protect sensitive sensing elements in harsh conditions, ensuring consistent performance.

This housing assembly combines durable materials with thoughtful engineering. It is part of the 31000 Proximity Probe Housings product type, a trusted name in the industry. Whether you are upgrading an existing system or planning a new installation, this housing provides the protection your monitoring equipment needs.

Key Features and Technical Specifications

The 31000-28-10-00-020-03-02 is built to perform under pressure. Let's examine its core specifications:

• Probe Compatibility: Designed for 3300 XL 8 mm probes, with connector option 28 for multiple approvals.
• Cable Length: Includes a 1.0 m (39 in) probe cable, option 10.
• Probe Penetration: Offers 2.0 in penetration, option 020.
• Fittings: Comes with two plugs, one 3/4-14 NPT fitting, a reducer, and a cable seal grip for various cable sizes.
• Mounting Thread: 3/4-14 NPT, option 02.
• Housing Material: Glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic with conductive fibers.
• Sleeve Material: AISI 304 stainless steel for the sleeve and retaining chain; AISI 303 for outer sleeve and screws.
• O-Ring Material: Neoprene®.
• Temperature Rating: Operates from -51°C to +105°C (-60°F to +221°F).
• Weight: 1.2 kg (2.6 lb).

One distinctive feature is the housing's impact strength. Certified by BASEEFA to withstand two separate 4 Joule impacts at extreme temperatures, and verified by CSA to handle a 7 Joule impact at room temperature. This ruggedness is crucial for protecting the probe in harsh industrial environments.

Applications and Use Cases

The 31000-28-10-00-020-03-02 is ideal for monitoring vibration and shaft position in rotating equipment such as turbines, compressors, and pumps. Its robust construction makes it suitable for areas where moisture, dust, or physical impact are concerns. For instance, in a petrochemical plant, this housing can shield the probe from harsh weather and accidental knocks, ensuring uninterrupted data collection.

Furthermore, the housing's Type 4X and IP66 ratings mean it can withstand hose-directed water, making it suitable for washdown environments. This feature is particularly valuable in food processing or marine applications where cleanliness is paramount.

Installation and Setup Guidance

Proper installation is key to maximizing the performance of the 31000-28-10-00-020-03-02. Begin by verifying the mounting thread (3/4-14 NPT) matches your installation point. The housing is designed to seal differential pressure between the probe tip and the main body when used with a 3300 XL 8 mm probe. Ensure the O-rings are properly seated to maintain this seal.

When routing the probe cable, use the provided cable seal grip and grommets to accommodate your cable diameter. The grip supports sizes from 1/8 to 3/8 inches. Tighten the retaining nut to the recommended torque of 29.4 N·m (260 in·lb) to secure the housing without over-stressing the components.

Note that the plastic housing is not designed to resist internal or external pressure. Therefore, avoid applying pressure to the housing beyond the intended sealing function. If your application requires pressure testing, contact the custom design department for assistance.

Maintenance and Reliability

Regular inspection of the 31000-28-10-00-020-03-02 ensures long-term reliability. Check the housing for cracks or damage, especially after any impact. Verify that the O-rings are intact and free from cuts or deformation. Replace any worn parts promptly to maintain the IP66 seal.

The stainless steel components resist corrosion, but in highly corrosive environments, periodic cleaning may be necessary. Use a soft cloth and mild detergent if needed. Avoid abrasive materials that could scratch the surface.

By following these simple steps, you can extend the service life of the housing and maintain accurate vibration readings. This proactive approach reduces downtime and saves costs in the long run.

Compatibility and Integration

The 31000-28-10-00-020-03-02 is specifically designed for use with Bently Nevada 3300 XL 8 mm probes. This ensures seamless integration with existing monitoring systems. The housing's connector option (28) supports multiple approvals, making it versatile for various global applications.

When integrating, ensure the probe cable length (1.0 m) is sufficient for your setup. If longer cables are needed, consult Bently Nevada for options. The housing's mounting thread (3/4-14 NPT) is a standard industrial size, simplifying installation in most machinery.

Frequently Asked Questions

Q: What is the temperature range for the 31000-28-10-00-020-03-02?

A: The housing operates from -51°C to +105°C (-60°F to +221°F).

Q: Does this housing include a standoff adapter?

A: No, the standoff adapter option is 00, meaning it is not included.

Q: What is the recommended torque for the retaining nut?

A: The recommended torque is 29.4 N·m (260 in·lb).

Q: Can the housing withstand high-pressure applications?

A: No, it is designed to seal differential pressure but not to resist internal or external pressure.

Q: What is the weight of the housing?

A: The housing weighs 1.2 kg (2.6 lb).

Product Support and Availability

The 31000-28-10-00-020-03-02 is available through Petro Auto Tech, your trusted industrial automation parts supplier. We ensure genuine Bently Nevada products and timely delivery. Contact our team for pricing and availability.