31000-00-00-00-059-03-02 | Bently Nevada 5.9 in Probe Housing

Introduction to the Bently Nevada 31000-00-00-00-059-03-02

When you need dependable protection for your proximity probes in demanding industrial settings, the 31000-00-00-00-059-03-02 from Bently Nevada stands ready. This 31000 series housing is engineered to shield sensitive 8 mm probes from harsh environments while maintaining signal integrity.

With a 5.9-inch probe penetration option, this housing fits applications where the probe must reach deep into the measurement zone. The housing is built with glass-reinforced polyphenylene sulfide (PPS) thermoplastic containing conductive fibers, offering both strength and electrostatic dissipation.

This model is configured without a probe or probe cable, giving you the flexibility to pair it with your preferred 3300 XL 8 mm probe. The included fittings—two plugs, one 3/4-14 NPT fitting, and one 3/4-14 to 1/2-14 NPT SST reducer—simplify installation.

Key Features and Technical Specifications

• Probe Penetration: 5.9 inches (059 option)
• Mounting Thread: 3/4-14 NPT
• Housing Material: Glass-reinforced PPS thermoplastic with conductive fibers
• Sleeve and Retaining Chain: AISI 304 stainless steel
• Outer Sleeve and Exterior Screws: AISI 303 stainless steel
• O-Ring Material: Neoprene®
• Temperature Rating: -51°C to +105°C (-60°F to +221°F)
• Weight: 1.2 kg (2.6 lb)
• Protection Ratings: Type 4X (CSA certified), IP66 (verified), CENELEC EN50014 for electrostatic dissipation

The housing impact strength is certified by BASEEFA to withstand two separate 4 Joule impacts at -39°C and 115°C, and CSA verified 7 Joule impact at room temperature. This ruggedness translates to fewer replacements and lower lifecycle costs.

Cost-Benefit Analysis: Why This Housing Saves Money

Investing in the 31000-00-00-00-059-03-02 reduces total cost of ownership. The stainless steel sleeves and PPS housing resist corrosion and mechanical damage, minimizing downtime and repair expenses.

The IP66 rating means the housing can withstand hose-directed water, reducing the risk of water ingress that could lead to probe failure. This protection is critical in washdown environments, where unsealed housings often fail prematurely.

Additionally, the housing is designed to seal differential pressure between the probe tip and the housing body when used with a 3300 XL 8 mm probe. This sealing capability helps maintain accurate measurements, avoiding costly misreadings that could trigger unnecessary shutdowns.

Installation and Setup Guidance

Proper installation is key to maximizing the housing's performance. The mounting thread is 3/4-14 NPT, which is required when ordering a standoff adapter. Ensure the thread is clean and properly lubricated to avoid galling.

The fittings option includes two plugs, one 3/4-14 NPT fitting, and one 3/4-14 to 1/2-14 NPT SST reducer. Use these to route cables through the housing while maintaining the IP66 seal. The cable seal grip accommodates cable sizes from 1/8 to 3/8 inches, providing a secure and watertight entry.

When tightening the retaining nut, use the recommended torque of 29.4 N·m (260 in·lb) to ensure a proper seal without overstressing the housing. Always follow the manufacturer's installation manual for detailed steps.

Maintenance and Reliability Tips

Regular inspection of the housing and O-rings is essential for long-term reliability. Check the Neoprene® O-ring for signs of wear or cracking, and replace it if necessary to maintain the IP66 seal.

Periodically verify that all screws and fittings remain tight, especially in high-vibration environments. The stainless steel construction resists corrosion, but routine cleaning with a mild detergent and water is recommended to remove contaminants.

Because the housing is not designed to resist internal or external pressure, avoid pressurizing the housing beyond atmospheric conditions. If your application requires pressure testing, contact Bently Nevada's custom design department for assistance.

Compatibility and Integration

The 31000-00-00-00-059-03-02 is designed for use with 3300 XL 8 mm proximity probes. It is part of the 31000/32000 series, ensuring compatibility with Bently Nevada's monitoring systems.

This housing is suitable for hazardous areas, as it meets CENELEC EN50014 for electrostatic dissipation of plastic material. Always verify that your probe and cable selections match the housing configuration to ensure optimal performance.

Frequently Asked Questions

Q: What is the probe penetration length for this housing?

A: The probe penetration option is 059, which corresponds to 5.9 inches.

Q: What mounting thread is used?

A: The mounting thread option is 02, which is 3/4-14 NPT. This is required if you order a standoff adapter.

Q: What is the temperature rating?

A: The housing is rated for -51°C to +105°C (-60°F to +221°F).

Q: Is the housing rated for outdoor use?

A: Yes, it has a Type 4X rating certified by CSA and an IP66 rating verified by SC115582-1 (e) 106, making it suitable for outdoor and washdown environments.

Q: Can I use this housing with any 8 mm probe?

A: It is designed for use with 3300 XL 8 mm probes. Always confirm compatibility with your specific probe model.

Product Support and Availability

The 31000-00-00-00-059-03-02 is available from Petro Auto Tech. Contact our team to check current stock and lead times. We are here to help you select the right housing for your application.