Bently Nevada 21000-28-05-15-012-04-02 21000 Series Proximity Probe Housing Assembly

SKU 21000-28-05-15-012-04-02

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12-month warranty
Free returns within 30 days

Manufacturer: Bently Nevada
Product No.: 21000-28-05-15-012-04-02
Country of origin:United States
Product Type: Proximity Probe Housings
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1080g
Dimensions: 8.5cm x 8.5cm x 30.5cm
Shipping port: Xiamen
Warranty: 12 months

Description

Engineered for demanding industrial environments, the Bently Nevada 21000-28-05-15-012-04-02 is an external proximity probe housing assembly designed to provide robust protection and simplified adjustment for proximity transducers. This assembly allows instrumentation engineers to install, calibrate, and service proximity probes externally without shutting down machinery or exposing personnel to hazardous process fluids.

The 21000-28-05-15-012-04-02 configuration features specific dimensional and thread specifications tailored for integration into machinery casings, such as steam turbines, gas turbines, compressors, pumps, and generators. By isolating the transducer within a dedicated protective sleeve, it ensures long-term operational reliability and precise gap adjustments for critical vibration and position monitoring systems.

Features

External Access Design: Facilitates probe installation, gap adjustment, and replacement without machinery shutdown or process fluid exposure.
Rugged Environmental Protection: Safeguards delicate coaxial cables and connectors from physical damage, moisture, and chemical exposure.
Precision Thread Engagement: Designed with standard NPT coupling threads for reliable and leak-tight industrial mounting.
Compatibility: Optimally configured for use with Bently Nevada 3300 XL 8 mm proximity probes.

Applications

Power generation plants (steam and gas turbine vibration monitoring)
Petrochemical and oil & gas refining equipment
Large-scale industrial centrifugal compressors and expanders
Critical cooling water pumps and balance-of-plant machinery

Technical Specifications

Manufacturer	Bently Nevada
Model/Part Number	21000-28-05-15-012-04-02
Series	21000 External Proximity Probe Housing
Probe Option (A)	3300 XL 8 mm probe
Probe Cable Length Option (B)	0.5 metre (20 inches)
Coupling Thread Option (E)	3/4-14 NPT
Housing Material	Anodized Aluminum / Stainless Steel hardware
Operating Temperature Range	-40 degC to 100 degC (standard housing limits)
Sealing Classification	Dust-tight and moisture-resistant design

Installation Guidelines

For safe and accurate deployment, observe the following engineering practices during installation:

Ensure the machinery casing is clean and free of debris before threading the housing sleeve into place.
Apply an industry-approved thread sealant to the NPT coupling threads to maintain process isolation.
Adjust the proximity probe to the specified gap voltage (typically -10 VDC for standard 3300 XL systems) using a calibrated voltmeter before locking the external adjustment nut.
Maintain minimum bend radius requirements for the coaxial extension cable to prevent signal attenuation or physical damage.

FAQ

What is the primary function of the Bently Nevada 21000 housing assembly?

It is an external mounting assembly that protects proximity probes and allows technicians to install, adjust, or replace the probes without shutting down the machinery.

Which probe series is compatible with the 21000-28-05-15-012-04-02 model?

This model is configured for use with Bently Nevada 3300 XL 8 mm proximity probes.

What is the coupling thread size for this housing assembly?

The coupling thread option (E: 04) corresponds to a standard 3/4-14 NPT interface.

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Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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