21000-16-05-15-072-03-02 – Bently Nevada | Housing Assembly

Bently Nevada 21000 Proximity Probe Housings – Safe & Durable for Industrial Use

What It Is

Brand-new, factory-packed proximity probe housings made by Bently Nevada. Designed for tough, hazardous areas, they are explosion-proof and meet API 670 standards. Perfect for industrial vibration monitoring.

Key Details

Brand: Bently Nevada
Model: 21000 Proximity Probe Housing Assemblies
Material: Aluminum body with 304 stainless steel sleeve
Weight: ~1.1 kg (2.4 lb) (no fittings)
Main Parts: Dome cover, threaded ports, probe sleeve, O-rings, reverse probe, thread seal, optional conduit parts, standoff adapter

Model Code Breakdown

Model: 21000-AA-BB-CC-DDD-EE-FF

AA: Probe type (e.g., 16 = 3300 XL 8 mm probe)
BB: Cable length (e.g., 05 = 0.5 m/20 in)
CC: Standoff length (e.g., 15 = 1.5 in/38 mm)
DDD: Probe depth (e.g., 072 = 7.2 in)
EE: Fittings (e.g., 03 = 3/4-14 NPT plug, reducer, cable seal)
FF: Mount thread (e.g., 02 = 3/4-14 NPT; default if CC ≠ 00)

Tech Specs

Depth Adjust: ±0.5 in (13 mm)
Max Visible Probe (C+D): 17.0 in (43.18 cm)
Max (C+D) Size: 32.9 in (83.5 cm)
Temp Range: T5 (-50°C to +40°C); T4 (-50°C to +80°C)

Install Tips

If probe depth (C+D) >12 in (300 mm), add sleeve support to avoid resonance.
For 1.0-2.0 in depth, counter-bore machine cases to cut side/rear view issues.

Works With

Pairs with CSA-approved probes for hazardous areas. Shares parts with 24701 stainless steel housings (both CSA Type 4 certified).

Certifications

CSA Explosion-Proof: Class 1 Div 1/2 (Groups C/D); Class 2 Div 1/2 (Groups E/F/G); Class III.
FCC: No harmful interference.
RoHS: Meets 2011/65/EU rules.

What’s in the Box

Dome cover, threaded ports, probe sleeve (optional length), O-rings, reverse probe, thread seal, optional conduit parts, standoff adapter (optional).

Download PDF file here:21000-24701-Datasheet