Bently Nevada 31000-28-05-15-026-06-02 Probe Housing

Product Introduction

The 31000-28-05-15-026-06-02 belongs to the Bently Nevada 31000 series of proximity probe housings. This assembly supports a 3300 XL 8 mm probe with multiple approvals. It provides a reliable mechanical interface for vibration and position measurement in rotating machinery. The housing seals differential pressure between the probe tip and the main body when used with a compatible 3300 XL 8 mm probe.

Technical Specifications

The 31000-28-05-15-026-06-02 includes several configurable options. First, the probe option is 28, which means a 3300 XL 8 mm probe with multiple approvals. Next, the probe cable length option is 05, equal to 0.5 m (20 in). The standoff adapter option is 15, which is 1.5 in. Additionally, the probe penetration option is 026, equal to 2.6 in. The fittings option is 06, which includes one 3/4-14 NPT fitting, one 3/4-14 NPT to 1/2-14 NPR SST reducer, and two plugs. Finally, the mounting thread option is 02, a 3/4-14 NPT thread required when ordering a standoff adapter.

Mechanical and Environmental Parameters

The housing material is glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic with conductive fibers. The sleeve material and retaining chain use AISI 304 stainless steel. Moreover, the outer sleeve and exterior screws are AISI 303 stainless steel. The O-ring material is Neoprene. The recommended torque for the retaining nut is 29.4 N·m (260 in·lb). The temperature rating spans -51°C to +105°C (-60°F to +221°F). The weight is 1.2 kg (2.6 lb) typical.

Protection ratings include a Type 4X rating certified by CSA. Furthermore, the IP66 rating was verified by SC115582-1 (e) 106. The CENELEC standard EN50014 covers electrostatic dissipation for plastic materials in hazardous areas. The housing impact strength was certified by BASEEFA to withstand two separate 4 Joule (3.0 ft·lb) impacts at -39°C and at 115°C. Samples also withstood a 7 Joule (5.2 ft·lb) impact at ambient room temperature.

Pressure Sealing and Installation Notes

The 31000/32000 assembly seals differential pressure between the probe tip and the housing main body when used with a 3300 XL 8 mm probe. The internal sealing material of the probe case is a Viton O-ring. Meanwhile, the O-ring between the sleeve and the housing is Neoprene. The plastic housing seals against hose-directed water per NEMA 4X and IP66 standards. However, it is not designed to resist internal or external pressure. Probes are not pressure tested before shipment. Therefore, contact the custom design department if a pressure seal test is required.

Installation Guide

First, verify the mounting thread is 3/4-14 NPT. Next, install the standoff adapter if required. Then, insert the 3300 XL 8 mm probe into the housing. After that, tighten the retaining nut to 29.4 N·m (260 in·lb). Finally, connect the 0.5 m probe cable to the extension cable and monitor system. Ensure the grounding liner is in place before fastening the cover.

Packaging List

• 1 x Bently Nevada 31000-28-05-15-026-06-02 Proximity Probe Housing

• 1 x Standoff Adapter, 1.5 in

• 1 x 3/4-14 NPT Fitting

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

• 2 x Plugs

• 1 x Retaining Chain

• 1 x Neoprene O-Ring

• 1 x Installation Sheet

Shipping via Fedex, UPS, DHL.

FAQ

1. What probe does the 31000-28-05-15-026-06-02 support?
It supports a 3300 XL 8 mm probe with multiple approvals, per probe option 28.

2. What is the cable length of this housing assembly?
The probe cable length option 05 provides a 0.5 m (20 in) cable.

3. Can this housing seal internal pressure?
No. The plastic housing seals against hose-directed water per NEMA 4X and IP66, but it is not designed for internal or external pressure.

4. What is the recommended torque for the retaining nut?
Tighten the retaining nut to 29.4 N·m (260 in·lb).

5. What is the operating temperature range?
The temperature rating is -51°C to +105°C (-60°F to +221°F).