Bently Nevada | 21000-28-05-00-065-04-02 | Probe Assembly

Proximity Probe Housing Assemblies (Model 21000)

What It Is

Made by Bently Nevada, Model 21000 Proximity Probe Housing is new, factory-packed, and built to safely hold probes. It includes a dome cover, threaded ports for wires, probe sleeves, O-rings, a reverse-mount probe, and more—designed for risky areas with explosion-proof ratings.

Key Details

Brand: Bently Nevada
Model: 21000
Material: Aluminum body with 304 stainless steel sleeve
Weight: About 1.1 kg (2.4 lb) without extra parts
Max Probe Length (0.5m cable): 13.5 in (34.3 cm)

Model Code Breakdown (21000-AA-BB-CC-DDD-EE-FF)

AA: Probe type (Example: “28” = 3300 XL 8mm probe with safety approvals for risky areas)
BB: Probe cable length (Example: “05” = 0.5m/20in)
CC: Standoff adapter (Example: “00” = No extra cable needed)
DDD: Probe depth (Example: “-065” = 6.5in; can change by ±0.5in)
EE: Fittings (Example: “04” = One 3/4-14 NPT plug)
FF: Mount thread (Example: “-02” = 3/4-14 NPT; needed if CC isn’t “00”)

Install Tips

If probe goes 1.0-2.0 inches into the machine, make a small hole in the case to avoid view issues.
If probe depth is over 12in (300mm), add support near the probe to stop shaking.

Works With

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

Certifications

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

What’s in the Box

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