Bently Nevada 21000-28-10-00-041-04-02 Proximity Probe Housing Assemblies

Overview

The Bently Nevada 21000‑28‑10‑00‑041‑04‑02 proximity probe housing assembly is designed for externally mounted proximity probes used in radial vibration, shaft position, and Keyphasor signal measurement. As part of the 21000‑28 series, it provides a rigid, sealed, and mechanically aligned interface for 3300‑series proximity probes installed through the machine case.

Functional Characteristics

This housing supports forward‑mount probe configurations and includes a precision‑machined stainless‑steel sleeve that maintains probe alignment and insertion depth. The –041 code indicates a 4.1‑inch sleeve length, suitable for medium‑depth installations where stable probe positioning is required.

The housing body is engineered for corrosion resistance and mechanical durability, making it suitable for oil‑rich, high‑temperature, and vibration‑intensive environments. Conduit ports support protected cable routing, while internal sealing components prevent moisture and debris intrusion.

Technicians can access the probe and extension cable externally, allowing gap adjustments or probe replacement without removing the housing—reducing downtime and simplifying maintenance.

Key Features

• Designed for 3300‑series proximity probes

• Forward‑mount configuration for radial vibration measurement

• 4.1‑inch stainless‑steel sleeve for precise probe penetration

• External access for probe adjustment and replacement

• Corrosion‑resistant housing suitable for harsh industrial environments

• Supports conduit fittings for protected cable routing

• Compliant with API 670 requirements for externally mounted probe housings

Technical Specifications

Application Scenarios

• Turbine supervisory instrumentation

• Compressor and pump vibration monitoring

• Shaft position and Keyphasor signal detection

• Machinery protection systems requiring API 670 compliance

• Installations requiring external probe access for maintenance efficiency

FAQ

Q: What probe type is typically used with this housing A: It is designed for 3300‑series proximity probes, commonly the 8 mm variant.

Q: Can the probe be serviced without removing the housing A: Yes. The design allows external access for gap adjustment and probe replacement.

Q: Is this model suitable for hazardous environments A: The 21000‑series housings are commonly used in oil & gas and petrochemical applications; suitability depends on conduit and probe certifications.