31000-16-10-15-040-03-02 Bently Nevada Probe Housing

Bently Nevada 31000-16-10-15-040-03-02 Proximity Probe Housing with Integrated Probe

Product Introduction

The Bently Nevada 31000-16-10-15-040-03-02 offers a fully configured solution for precision vibration monitoring in rotating equipment. This assembly includes a 3300 XL 8 mm probe, a 1.0-meter cable, and a 1.5-inch standoff adapter, so you will not need to source separate components. Manufactured in the U.S.A., this housing provides a 4.0-inch probe penetration and rugged glass-reinforced PPS construction with stainless steel hardware. For turbines, compressors, pumps, and other critical machinery, this housing delivers dependable shaft displacement measurements in demanding conditions.

Complete Assembly Configuration

The 31000-16-10-15-040-03-02 arrives as a ready-to-install package, unlike basic housing options that require additional purchases. Specifically, each option code corresponds to a tangible hardware element:

• Probe Option (16): 3300 XL 8 mm proximity probe with connector

• Cable Length (10): 1.0 meter (39 inches) – this length works well for short runs to junction boxes or monitoring panels

• Standoff Adapter (15): Minimum 1.5 inches (38 mm) – this adapter extends the probe tip to enable correct gap voltage settings

• Probe Penetration (040): 4.0 inches – this depth suits machinery casings with relatively shallow bore holes

• Fittings (03): Includes two NPT plugs, one 3/4-14 NPT fitting, one 3/4-14 to 1/2-14 NPT SST reducer, plus a cable seal grip with grommets for 1/8–3/8 inch cable diameters

• Mounting Thread (02): 3/4-14 NPT – this thread type is required when using the standoff adapter

Sealing Performance and Pressure Considerations

When paired with the 3300 XL 8 mm probe, the Bently Nevada 31000 housing effectively seals differential pressure between the probe tip and the main body. A Viton O-ring handles the internal sealing duties, whereas a Neoprene O-ring seals the sleeve-to-housing interface.

Nevertheless, users should recognize an important limitation. Although this housing meets NEMA 4X and IP66 standards for water ingress protection, it is not designed to resist sustained internal or external pressure. Furthermore, the factory does not pressure-test each probe assembly before shipment. Therefore, if your specific application demands pressure seal verification, please contact our custom design department to arrange specialized testing.

Material Selection and Structural Integrity

The 31000 series prioritizes long-term durability through careful material choices. Every component contributes to reliable operation in harsh industrial environments:

In addition, the housing exhibits impressive mechanical strength. For instance, it supports 912 N (205 lb) of static load when mounted horizontally. BASEEFA has certified its impact resistance, confirming that it withstands two separate 4 Joule impacts at both -39°C and 115°C. Meanwhile, CSA verified that sample housings endure a 7 Joule impact at room temperature. Finally, the recommended retaining nut torque of 29.4 N·m (260 in·lb) ensures a secure and stable installation.

Environmental Certifications and Operating Envelope

The 31000-16-10-15-040-03-02 holds multiple independent certifications that qualify it for demanding locations:

• Type 4X (CSA certified) – this rating confirms corrosion resistance and suitability for wet areas

• IP66 (verified per SC115582-1 (e) 106) – this rating guarantees dust-tight protection and defense against powerful water jets

• CENELEC EN50014 – this standard addresses electrostatic dissipation for plastic materials in hazardous zones

Moreover, the housing operates across an exceptionally wide temperature range:

• Minimum: -51°C (-60°F)

• Maximum: +105°C (+221°F)

Consequently, this housing performs reliably outdoors, in freezing climates, and near high-temperature process equipment. Additionally, its 1.2 kg (2.6 lb) weight simplifies handling tasks during both installation and routine maintenance.

Step-by-Step Installation Guidance

Correct installation of the Bently Nevada 31000-16-10-15-040-03-02 directly impacts measurement accuracy and service life. Please follow these recommended steps:

1. Inspect the mounting surface – First, confirm that the 3/4-14 NPT threaded hole is clean, straight, and free from damage.

2. Insert the probe assembly – Next, carefully guide the 3300 XL 8 mm probe through the housing until you reach the 4.0-inch penetration mark.

3. Attach the standoff adapter – Then, secure the 1.5-inch standoff adapter to establish the correct probe tip extension.

4. Select the appropriate cable grommet – After that, choose from the three supplied grommets to match your cable diameter (1/8–3/16″, 1/4–5/16″, or 5/16–3/8″).

5. Tighten the retaining nut – Subsequently, apply 29.4 N·m (260 in·lb) of torque using a calibrated wrench.

6. Connect the fittings – Following this, install the NPT plugs and reducer according to your piping configuration.

7. Verify cable routing – Finally, check that the 1.0-meter cable is securely fastened and avoids sharp bends.

For applications that require pressure seal verification, please arrange testing through our custom design department before you begin installation.

Packaging List

Your shipment of the 31000-16-10-15-040-03-02 contains the following items:

• 1 x 31000 Proximity Probe Housing main body

• 1 x 3300 XL 8 mm probe with connector (pre-installed)

• 1 x 1.0-meter probe cable (attached)

• 1 x 1.5-inch standoff adapter

• 1 x Outer sleeve (AISI 304 stainless steel)

• 1 x Retaining chain

• 1 x Cable seal grip with three interchangeable grommets

• 2 x NPT plugs

• 1 x 3/4-14 to 1/2-14 NPT SST reducer

• 1 x Installation instruction sheet

Note: Certification documents and warranty information are not part of this packaging list.

Frequently Asked Questions (FAQ)

1. Is the 3300 XL probe pre-installed in the 31000-16-10-15-040-03-02?
Yes, this model includes the 3300 XL 8 mm probe factory-installed with the 1.0-meter cable. Consequently, you save assembly time and avoid fitment concerns.

2. What role does the 1.5-inch standoff adapter play?
The standoff adapter extends the probe tip to achieve the optimal gap voltage. Specifically, the 15 option provides a minimum 1.5-inch length to accommodate various casing wall thicknesses.

3. Is this housing suitable for outdoor use?
Absolutely. The 31000 housing holds both NEMA 4X and IP66 ratings. Therefore, it performs well outdoors where rain, dust, and corrosive conditions are typical.

4. How do I pick the right cable grommet?
First, measure your probe cable's outer diameter. Then, select from the three supplied grommets that cover 1/8–3/16″, 1/4–5/16″, and 5/16–3/8″ ranges. Choose the one that provides a firm seal after compression.

5. What if my application needs pressure seal verification?
The factory does not pressure-test standard assemblies before shipment. Hence, for applications that require verified pressure sealing, please contact our custom design department to arrange testing services.