31000-16-05-00-037-03-02 Bently Nevada Housing

Bently Nevada 31000-16-05-00-037-03-02 Proximity Probe Housing

Product Introduction

The Bently Nevada 31000-16-05-00-037-03-02 offers a complete enclosure solution for vibration monitoring with the 3300 XL 8 mm probe. This model stands out with its 3.7-inch probe penetration, which accommodates deeper installation requirements. The fitting package includes a versatile cable seal grip with multiple grommet sizes, plus a stainless steel reducer for flexible conduit connections. Manufactured in the U.S.A., this housing delivers reliable protection in hazardous and harsh environments.

Detailed Technical Specifications

The Bently Nevada 31000 housing series supports the 3300 XL 8 mm probe with multiple approvals. This particular variant, 31000-16-05-00-037-03-02, comes with a 0.5-metre (20-inch) probe cable. The probe penetration is set at 3.7 inches, providing greater depth for specific machinery configurations. The mounting thread uses a 3/4-14 NPT connection, ensuring compatibility with standard industrial fittings.

Additionally, the fittings option for this model is exceptionally comprehensive. It includes one 3/4-14 NPT fitting and two plugs for port sealing. Furthermore, it provides one 3/4-14 to 1/2-14 NPT stainless steel reducer, enabling connection to smaller conduit systems. Most notably, a cable seal grip is included with three interchangeable grommets for cable sizes ranging from 1/8 to 3/8 inches. This versatility allows the housing to accommodate various cable diameters while maintaining a tight environmental seal.

The protection ratings meet the highest industry standards. The housing holds a Type 4X rating certified by the Canadian Standards Association (CSA). The IP66 rating has been verified by SC115582-1 (e) 106, guaranteeing complete protection against dust and powerful water jets. Moreover, it meets CENELEC standard EN50014 for electrostatic dissipation, making it safe for use in classified hazardous areas.

Material Composition and Mechanical Properties

The housing construction uses glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic with conductive fibres embedded throughout. This material offers excellent chemical resistance, dimensional stability, and inherent static dissipation properties. The sleeve and retaining chain are fabricated from AISI 304 stainless steel for strength and corrosion resistance. Meanwhile, the outer sleeve and exterior screws use AISI 303 stainless steel, which provides superior machinability and surface finish. The O-ring is made from Neoprene® to ensure a durable, long-lasting seal against moisture and contaminants.

Environmental and Impact Ratings

The Bently Nevada 31000-16-05-00-037-03-02 operates across an extreme temperature range of -51°C to +105°C (-60°F to +221°F). This makes it suitable for both freezing outdoor locations and high-heat process areas. Impact strength has been rigorously validated through independent testing. BASEEFA certified the housing to withstand two separate 4 Joule (3.0 ft·lb) impacts at -39°C and at 115°C. In addition, CSA verified that samples of the housing and cover withstand a 7 Joule (5.2 ft·lb) impact at ambient room temperature.

Mechanical strength is equally robust. The outer sleeve supports 912 N (205 lb) when mounted on a test stand, with the housing positioned approximately 38 mm from the unsupported end. The recommended torque for the retaining nut is 29.4 N·m (260 in·lb). The total weight of this unit is 1.2 kg (2.6 lb), which facilitates easy handling during installation.

Installation Guidance

Proper installation of the Bently Nevada 31000-16-05-00-037-03-02 requires attention to several critical steps. First, select the appropriate grommet from the three provided sizes based on your cable diameter. The grommet options cover 1/8 to 3/16 inches, 1/4 to 5/16 inches, and 5/16 to 3/8 inches. This ensures a snug fit within the cable seal grip, preventing moisture ingress.

Next, clean the mounting surface thoroughly before attaching the housing using the 3/4-14 NPT thread. Apply the recommended torque of 29.4 N·m to the retaining nut for optimal sealing. For conduit connections, use the supplied stainless steel reducer if adapting from 3/4-14 NPT to 1/2-14 NPT. This feature simplifies integration with existing piping systems. Finally, verify the 3.7-inch probe penetration depth before final tightening, as this setting directly impacts measurement accuracy.

Packaging List

This shipment for the Bently Nevada 31000-16-05-00-037-03-02 includes the following items:

• 1 x Proximity probe housing assembly

• 1 x 0.5-metre probe cable (pre-attached)

• 1 x 3/4-14 NPT fitting

• 2 x Plugs for unused ports

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

• 1 x Cable seal grip with three grommets (1/8-3/16", 1/4-5/16", 5/16-3/8")

• 1 x Installation instruction sheet

Shipping Information

All orders are dispatched worldwide via FedEx, UPS, or DHL. Tracking numbers are provided upon shipment. Delivery typically takes 3-7 business days depending on the destination region.

Frequently Asked Questions (FAQ)

Q1: What makes the 31000-16-05-00-037-03-02 different from other Bently Nevada housings?
This model features a 3.7-inch probe penetration, which is deeper than standard options. It also includes a comprehensive fitting kit with a cable seal grip and stainless steel reducer for versatile conduit connections.

Q2: Can I use this housing with a probe other than the 3300 XL 8 mm?
No, this housing is specifically designed for the 3300 XL 8 mm probe. Using other probes may result in improper fitment and compromised measurement accuracy.

Q3: How do I choose the correct grommet for the cable seal grip?
Measure your cable diameter and select the corresponding grommet from the three provided sizes: 1/8 to 3/16 inches, 1/4 to 5/16 inches, or 5/16 to 3/8 inches. This ensures a proper seal.

Q4: Is this housing suitable for outdoor installation in rainy climates?
Yes, absolutely. The IP66 and Type 4X ratings confirm it is fully protected against dust, rain, and high-pressure water jets, making it ideal for outdoor use.

Q5: What torque should I apply to the retaining nut on this Bently Nevada 31000 housing?
The recommended torque is 29.4 N·m (260 in·lb). Using a torque wrench helps achieve the correct value and prevents overtightening that could damage the O-ring or housing.