21000-28-05-30-030-04-02 – Bently Nevada | Probe Assembly

Bently Nevada 21000 Proximity Probe Housing Assemblies

Quick Overview

Fresh from the factory, this Bently Nevada Model 21000 Proximity Probe Housing keeps your probes secure. Built for tough, explosive areas, it includes a screw-on dome cover, threaded ports for wires, O-rings, and a reverse-mount probe—all in a durable aluminum body with a 304 stainless steel sleeve.

Core Details

Brand: Bently Nevada
Model: 21000 (Product #: 21000-28-05-30-030-04-02)
Material: Aluminum + 304 stainless steel sleeve
Weight: ~1.1 kg (2.4 lb) (no extra parts)
Max Probe Length (0.5m cable): 13.5 in (34.3 cm)

Model Suffix Guide (21000-AA-BB-CC-DDD-EE-FF)

AA: Probe type (“28” = 3300 XL 8mm probe with safety for risky areas)
BB: Cable length (“05” = 0.5m/20in)
CC: Standoff adapter (“30” = 3in long)
DDD: Probe depth (“-030” = 3in; can adjust ±0.5in)
EE: Fittings (“04” = One 3/4-14 NPT plug)
FF: Mount thread (“-02” = 3/4-14 NPT; needed if CC ≠ “00”)

Setup Notes

If probe goes 1.0-2.0 inches into the machine: Drill a small hole in the case to avoid view issues.
If total probe depth (CC+DDD) >12in (300mm): Add support near the probe to stop shaking.

Works With

Pairs with 21000 (aluminum) and 24701 (stainless steel) housings. Fits optional wire fittings and standoff adapters.

Safety Certifications

CSA explosion-proof for hazardous areas.
CSA Type 4 enclosure rating.
Meets API 670 Standard for probe housings.

What’s Included

Dome cover, threaded wire ports, probe sleeve (length optional), O-rings, reverse-mount probe, thread seal, extra wire fittings (optional), standoff adapter (optional).
Download PDF file here:21000-24701-Datasheet