Bently Nevada 31000-28-05-35-032-03-02 Proximity Probe Housing Assembly

Technical Specifications Breakdown

Key parameters for the 31000-28-05-35-032-03-02 are listed below for quick reference:

Installation and Setup Guidance

When installing the 31000-28-05-35-032-03-02, ensure the mounting thread (3/4-14 NPT) is properly engaged. The recommended torque for the retaining nut is 29.4 N·m (260 in·lb). The assembly includes two plugs, one 3/4-14 NPT fitting, one 3/4-14 to 1/2-14 NPT SST reducer, and one cable seal grip with grommets for cable sizes from 1/8 to 3/8 inches. Verify that the O-ring between the sleeve and housing (Neoprene) is properly seated to maintain the seal. The plastic housing is not designed to resist internal or external pressure, so avoid pressurizing the assembly.

Maintenance and Reliability

From a maintenance engineer's perspective, the 31000-28-05-35-032-03-02 offers straightforward serviceability. Inspect the housing and cover periodically for cracks or deformation, especially after impacts. Check the cable seal grip and grommets for wear. The housing material is designed to withstand electrostatic discharge, but ensure the grounding liner is installed correctly. The temperature rating of -51°C to +105°C covers most industrial environments. If the probe is used in a pressure-sealing application, note that probes are not pressure tested prior to shipment; contact the custom design department if pressure testing is required.

Robust Protection for Critical Vibration Monitoring

The Bently Nevada 31000-28-05-35-032-03-02 is a precision-engineered proximity probe housing assembly designed to protect 3300 XL 8 mm probes in demanding industrial environments. This unit is built for reliability, offering a Type 4X rating certified by CSA and an IP66 rating verified by SC115582-1 (e) 106. The housing is constructed from glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic containing conductive fibers, ensuring electrostatic dissipation in hazardous areas per CENELEC standard EN50014.

Designed for Harsh Environments

The Type 4X and IP66 ratings mean it withstands hose-directed water and corrosive environments. The housing impact strength is certified by BASEEFA to withstand two separate 4 Joule impacts at -39°C and 115°C, while CSA verified a 7 Joule impact at room temperature. The sleeve material and retaining chain are AISI 304 stainless steel, and the outer sleeve and exterior screws are AISI 303 stainless steel, providing corrosion resistance.

Compatibility and Integration

This housing is specifically designed for use with 3300 XL 8 mm probes. The probe cable length option is 0.5 m (20 in). The standoff adapter option is 3.5 in, and the probe penetration option is 3.2 in. The fittings option includes two plugs and a reducer for flexible cable entry. The mounting thread option (3/4-14 NPT) is required when ordering the standoff adapter. The assembly seals differential pressure between the probe tip and the housing main body using a Viton O-ring inside the probe case and a Neoprene O-ring between the sleeve and housing.

Selection Guide and Purchasing Advice

When selecting the 31000-28-05-35-032-03-02, verify that the probe cable length, standoff adapter, and probe penetration match your application requirements. The 3/4-14 NPT mounting thread is standard for many industrial installations. For availability and lifecycle status, please verify with AutoDCSTech before ordering. AutoDCSTech offers this assembly as a reliable solution for vibration monitoring in rotating machinery.

Please verify current lifecycle status and availability with AutoDCSTech before ordering.