Bently Nevada 31000-16-05-00-035-02-02 Proximity Probe Housing

Product Introduction

The Bently Nevada 31000-16-05-00-035-02-02 is a 31000 Proximity Probe Housing Assembly designed to protect and mount a 3300 XL 8 mm proximity probe on rotating machinery. The assembly combines a probe with connector (Probe Option 16 = 3300 XL 8 mm probe) and a 0.5 m (20 in) probe cable inside a rugged housing made of glass-reinforced polyphenylene sulfide (PPS) thermoplastic containing conductive fibers. The sleeve and retaining chain are AISI 304 stainless steel, the outer sleeve and exterior screws are AISI 303 stainless steel, and the unit is manufactured in the U.S.A.

Technical Parameters

• Model: 31000-16-05-00-035-02-02
• Product Type: 31000 Proximity Probe Housing Assembly
• Probe Option, With Connector: 16 = 3300 XL 8 mm probe
• Probe Cable Length Option: 05 = 0.5 m (20 in)
• Standoff Adapter Option: 00 = No standoff adapter
• Probe Penetration Option: 035 = 3.5 in
• Fittings Option: 02 = Two 3/4-14 NPT fittings, one plug
• Mounting Thread Option: 02 = 3/4-14 NPT
• Protection Ratings: CSA Type 4X; IP66 verified by SC115582-1 (e) 106; CENELEC EN50014 electrostatic dissipation rating
• Housing Material: Glass-reinforced PPS thermoplastic with conductive fibers
• Sleeve Material and Retaining Chain: AISI 304 stainless steel
• Outer Sleeve and Exterior Screws: AISI 303 stainless steel
• O-Ring Material: Neoprene
• Temperature Rating: -51°C to +105°C (-60°F to +221°F)
• Recommended Torque (retaining nut): 29.4 N·m (260 in·lb)
• Weight: 1.2 kg (2.6 lb) typical

Parameter Analysis

Each block of the ordering string defines the physical configuration of the assembly. The 16 probe option supplies a 3300 XL 8 mm probe with connector, the 05 option gives a 0.5 metre probe cable, the 00 standoff adapter option omits the standoff, and the 035 probe penetration option sets the penetration depth at 3.5 inches. The 02 fittings option provides two 3/4-14 NPT fittings with one plug, and the 02 mounting thread option specifies a 3/4-14 NPT mounting thread, which is required whenever a standoff adapter is ordered.

The housing carries a Type 4X rating certified by the Canadian Standards Association and an IP66 rating verified by SC115582-1 (e) 106, so it is certified to seal against hose-directed water in wash-down environments. The plastic housing also meets the CENELEC EN50014 standard for electrostatic dissipation of a plastic material located in a hazardous area. Impact strength is certified by BASEEFA to withstand two separate 4 Joule (3.0 ft·lb) impacts at -39°C (-38°F) and at 115°C (239°F), and CSA-verified samples withstand a 7 Joule (5.2 ft·lb) impact at ambient room temperature. Structurally, the housing mounted on its outer sleeve supported 912 N (205 lb) placed approximately 38 mm (1.5 in) from the unsupported end with the cover fastened and grounding liner installed.

Application Scenarios

31000/32000 housing assemblies are used on turbines, compressors, pumps, and other rotating machinery where the proximity probe must pass through the machine casing and remain protected from wash-down, dust, and mechanical contact. The assembly seals differential pressure between the probe tip and the housing main body when used with a 3300 XL 8 mm probe: the sealing material internal to the probe case is a Viton O-ring, and the O-ring between the sleeve and the housing is Neoprene. Note that the housing is not designed to resist internal or external pressure, and probes are not pressure tested prior to shipment.

Installation Guide

Confirm every option digit against your machine drawing before installation. Mount the housing through the 3/4-14 NPT thread, tighten the retaining nut to the recommended 29.4 N·m (260 in·lb), and route the probe cable through the supplied NPT fittings. Keep the sleeve-housing O-ring seated during assembly to preserve the IP66 seal. When a standoff adapter is required, the 3/4-14 NPT mounting thread option must be ordered with it. After fitting the probe, set the gap according to the electrical requirements of the associated 3300 XL Proximitor and verify the gap voltage before returning the machine to service.

Compatibility

This assembly is designed for the 3300 XL 8 mm proximity probe family (Probe Option 16) and mates with standard 3300 XL extension cables and Proximitors. Explosion-proof fittings are available for hazardous-area installations, and the housing family covers the 31000/32000 range with alternate penetrations, fittings, and mounting threads to match different casing designs. TenBN can supply the complete measurement chain under consistent part numbers.

Maintenance Advice

Inspect the housing cover, exterior screws, and O-rings during outages for wear or damage, and confirm the retaining nut torque has not relaxed in service. The assembly operates from -51°C to +105°C (-60°F to +221°F); avoid applications outside this envelope. The housing is rated for hose-directed water under NEMA 4X and IP66 but is not a pressure vessel, so never use it where internal or external pressure loading is expected.

Procurement Advice

Because penetration depth, fittings, and mounting thread all change the mechanical fit, always verify the complete part number against your system design before ordering. TenBN stocks genuine Bently Nevada 31000/32000 housing assemblies and provides the official service manual for this model. For inventory, pricing, and lead time on the 31000-16-05-00-035-02-02, contact [email protected].

Frequently Asked Questions

Which probe does the 31000-16-05-00-035-02-02 include?

Probe Option 16 supplies a 3300 XL 8 mm probe with connector on a 0.5 m (20 in) probe cable inside the housing assembly.

What protection ratings does the housing carry?

The housing is CSA Type 4X certified and IP66 verified (SC115582-1 (e) 106), meaning it seals against hose-directed water; it also meets CENELEC EN50014 for electrostatic dissipation of plastics in hazardous areas.

What is the recommended retaining nut torque?

The recommended torque for the retaining nut is 29.4 N·m (260 in·lb).

What is the operating temperature range?

The assembly is rated from -51°C to +105°C (-60°F to +221°F).

Can the housing be used under pressure?

No. It seals differential pressure between the probe tip and the housing body via Viton and Neoprene O-rings, but it is not designed to resist internal or external pressure and probes are not pressure tested prior to shipment.