31000-00-00-00-120-00-02 Bently Nevada Housing

Bently Nevada 31000-00-00-00-120-00-02 Proximity Probe Housing

Product Introduction

The Bently Nevada 31000-00-00-00-120-00-02 offers a flexible enclosure solution for vibration monitoring applications. This model comes without a probe, cable, or fittings, making it perfect for users who have existing probes or wish to configure their own measurement setup. The 12-inch probe penetration provides substantial depth for accessing measurement points within large machinery. Manufactured in the U.S.A., this housing retains all the robust protection features of the 31000 series, including IP66 and Type 4X ratings for demanding environments.

Detailed Technical Specifications

The Bently Nevada 31000 housing series delivers durability and reliability across many applications. This particular variant, 31000-00-00-00-120-00-02, lacks a probe, as the "00" option code indicates. Similarly, the probe cable does not come with this unit, since option A must also be "00" for this configuration. This bare housing approach provides maximum flexibility for users who prefer to source probes separately or maintain existing probe inventory.

The standoff adapter option is set to "00", meaning no standoff adapter is included. The probe penetration reaches 12 inches, offering deep access for measuring vibration in large turbines, compressors, or other heavy machinery. The fittings option is also "00", so the housing ships without any fittings, plugs, or cable seals. The mounting thread uses a 3/4-14 NPT connection, which is required when ordering the standoff adapter option, though this model does not include one.

This configuration specifically targets users who need a robust housing without the additional components. The absence of a probe and cable reduces the overall cost while maintaining the same high-quality enclosure. Users can add their preferred 3300 XL 8 mm probe, cable, and fittings according to their specific application requirements.

Protection Ratings and Certifications

The protection ratings meet the highest industry standards for demanding applications. 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 ingress and powerful water jets. Moreover, it meets CENELEC standard EN50014 for electrostatic dissipation, making it safe for use in classified hazardous areas where plastic materials must prevent static discharge.

Material Composition and Mechanical Properties

The housing construction uses glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic with conductive fibres embedded throughout. This advanced 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 superior strength and corrosion resistance. Meanwhile, the outer sleeve and exterior screws use AISI 303 stainless steel, which provides excellent machinability and surface finish. The O-ring is manufactured from Neoprene® to ensure a durable, long-lasting seal against moisture, dust, and chemical contaminants.

Environmental and Impact Ratings

The Bently Nevada 31000-00-00-00-120-00-02 operates across an extreme temperature range of -51°C to +105°C (-60°F to +221°F). This broad range makes it suitable for both freezing outdoor locations and high-heat process areas near turbines or compressors. 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 for this configuration. 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 remains manageable for installation.

Installation Guidance

Proper installation of the Bently Nevada 31000-00-00-00-120-00-02 requires careful attention to several steps, especially since this is a bare housing configuration. First, 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.

Next, select and install your preferred 3300 XL 8 mm probe. The 12-inch penetration depth requires careful insertion to avoid contact with internal components. Ensure the probe path is clear before installation, and verify the penetration depth after final tightening. For cable management, you will need to source your own cable seal grip and fittings, as this model ships without them. The 3/4-14 NPT thread provides a standard connection point for aftermarket fittings.

Finally, when sourcing additional components, ensure they meet the same IP66 and Type 4X protection standards to maintain the overall environmental seal. The connector should be properly secured to prevent mechanical stress on the probe cable.

Packaging List

This shipment for the Bently Nevada 31000-00-00-00-120-00-02 includes the following items:

• 1 x Proximity probe housing assembly (without probe)

• 1 x Installation instruction sheet

Note: This housing ships without probe, cable, fittings, or cable seal grip. These components must be ordered separately.

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: Why would I choose the 31000-00-00-00-120-00-02 over a complete housing kit?

This model is ideal if you already have 3300 XL 8 mm probes, cables, and fittings in inventory. It reduces redundant purchasing and allows you to customize your measurement setup exactly to your needs.

Q2: What components do I need to add to make this housing functional?

You will need a 3300 XL 8 mm probe, a probe cable, a cable seal grip with appropriate grommets, and fittings such as NPT adapters and plugs. All these components are available separately from Bently Nevada.

Q3: Can I install any 8 mm probe into this housing?

This housing is specifically designed for the 3300 XL 8 mm probe. While other 8 mm probes might physically fit, Bently Nevada recommends using the 3300 XL series for optimal performance and reliability.

Q4: Is the 12-inch penetration depth suitable for my application?

The 12-inch penetration provides deep access for large machinery measurements. Consider your machine's geometry and measurement point accessibility. For shorter depths, other models with lower penetration options are available.

Q5: What torque should I apply to the retaining nut on this Bently Nevada housing?

The recommended torque is 29.4 N·m (260 in·lb). Using a torque wrench is strongly recommended to achieve the correct value and prevent overtightening that could damage the O-ring or housing threads.