31000-16-05-20-040-02-02 | Bently Nevada 8 mm Probe Housing

Introduction to the 31000-16-05-20-040-02-02

When machinery vibration threatens uptime, the 31000-16-05-20-040-02-02 from Bently Nevada provides a dependable housing solution. This 31000 series proximity probe housing is engineered to protect sensitive 3300 XL 8 mm probes. It is built for demanding industrial environments where reliability is non-negotiable. The housing is manufactured in the U.S.A. and reflects Bently Nevada's commitment to quality.

Key Features and Technical Specifications

• Compatible with 3300 XL 8 mm proximity probes (option 16).
• Probe cable length of 0.5 m (20 in) for flexible installation.
• Standoff adapter of 2.0 in ensures proper probe positioning.
• Probe penetration of 4 in accommodates various mounting depths.
• Two 3/4-14 NPT fittings and one plug simplify conduit connections.
• Mounting thread option 02 (3/4-14 NPT) is required when using the standoff adapter.
• Housing material: glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic with conductive fibers.
• Sleeve and retaining chain made of AISI 304 stainless steel; outer sleeve and screws use AISI 303 stainless steel.
• O-ring material is Neoprene® for reliable sealing.
• Temperature rating from -51°C to +105°C (-60°F to +221°F).
• Weight of 1.2 kg (2.6 lb) typical.

One standout feature is the housing's impact strength. Certified by BASEEFA to withstand two separate 4 Joule (3.0 ft·lb) impacts at -39°C (-38°F) and at 115°C (239°F), it also passed CSA verification for a 7 Joule (5.2 ft·lb) impact at room temperature. This robustness directly reduces the risk of probe damage from accidental strikes, a common cause of false readings.

Installation and Setup

Proper installation is critical for accurate vibration monitoring. The 31000-16-05-20-040-02-02 includes two 3/4-14 NPT fittings and one plug, simplifying conduit attachment. The recommended torque for the retaining nut is 29.4 N·m (260 in·lb). Always follow the manufacturer's guidelines to avoid over-torquing, which could damage the housing or probe. Verify the probe penetration depth (4 in) matches your machine's requirements before finalizing the setup.

Maintenance and Reliability

Regular inspection of the housing and its seals helps maintain long-term performance. Check the O-ring for wear and ensure the stainless steel sleeve remains securely fastened. The PPS housing resists corrosion and electrostatic discharge, making it suitable for hazardous areas. By keeping the housing clean and properly torqued, you extend the life of both the housing and the probe, reducing unplanned downtime.

Compatibility and Integration

This housing is designed for use with Bently Nevada 3300 XL 8 mm proximity probes. It is part of the 31000 series, which is widely used in rotating machinery monitoring systems. The 3/4-14 NPT mounting thread ensures compatibility with standard industrial conduit systems. For complete system integration, pair it with compatible Bently Nevada monitors and cables.

FAQ about the 31000-16-05-20-040-02-02

Q: What is the temperature range of this housing?

A: The housing operates from -51°C to +105°C (-60°F to +221°F), covering most industrial environments.

Q: Which probe does this housing support?

A: It supports the 3300 XL 8 mm probe, option 16, with a 0.5 m (20 in) cable.

Q: What mounting thread is required?

A: The mounting thread option is 3/4-14 NPT, which is mandatory when using the standoff adapter.

Q: Is the housing suitable for hazardous areas?

A: Yes, it has a CENELEC EN50014 rating for electrostatic dissipation of plastic material in hazardous locations.

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

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

Product Support and Availability

The 31000-16-05-20-040-02-02 is available through Petro Auto Tech, your trusted industrial automation parts supplier. Contact our team for current availability and lifecycle status. We are ready to help you keep your machinery monitoring systems running smoothly.