21000-16-05-00-039-03-02 Bently Nevada 3300 XL 8mm Housing

Product Overview

The BENTLY NEVADA 21000-16-05-00-039-03-02 is a robust proximity probe housing assembly engineered for high-precision machinery monitoring in the most demanding industrial environments. This explosion-proof certified housing is specifically designed to protect 3300 XL 8mm probes while ensuring compliance with API 670 standards. Constructed from a high-durability blend of aluminum and stainless steel, it provides a secure enclosure for vibration and position sensors used in oil and gas facilities, power plants, and heavy manufacturing. The complete assembly features a total weight of 1.1 kg (2.4 lbs), balancing mechanical strength with ease of installation.

Technical Configuration

Optimized Penetration & Mounting

This 21000 series assembly is configured with a 3.9-inch penetration depth and utilizes a 3/4-14 NPT mounting thread. It is equipped with a 0.5-meter (20") cable to facilitate seamless connection between the internal probe and external conduit systems. The housing features standard 3/4-14 NPT fittings, making it compatible with universal industrial conduit and port specifications. To maintain the integrity of the internal environment, the unit includes a specialized dome cover and high-performance O-rings for superior sealing.

Hazardous Area Safety

Safety is a paramount feature of the 21000-16-05-00-039-03-02. It is CSA certified and approved for Class 1 Division 1 hazardous areas, ensuring safe operation where flammable gases or vapors may be present. The explosion-proof design prevents internal sparks from igniting the surrounding atmosphere. Additionally, the unit operates across a wide temperature spectrum from -50°C to +80°C, maintaining the precision of the 3300 XL 8mm probe in both extreme cold and high-heat industrial zones.

Technical Specifications

Installation & Best Practices

For successful deployment, it is recommended to follow API 670 guidelines for proximity probe installation. For penetration depths exceeding 12 inches, external sleeve supports should be used to minimize vibration of the probe case. For shorter penetrations (1-2 inches), counter-boring the mounting port may be necessary to ensure the probe tip reaches the correct target gap. The use of the included 3/4-14 NPT fittings kit ensures a watertight and gas-tight seal, protecting the sensitive instrumentation from environmental contamination.

Engineering Advantages

• Explosion-Proof Certified: Specifically rated for use in Class 1 Division 1 hazardous environments for maximum safety.
• API 670 Compliant: Meets the stringent requirements for machinery protection systems in the petrochemical and power industries.
• Dual-Material Construction: Combines the lightweight properties of aluminum with the corrosion resistance of stainless steel.
• Universal Conduit Fit: Standardized NPT threads allow for easy integration with existing industrial conduit and junction boxes.

Technical FAQs

Q1: Is the probe included with the housing assembly?
A1: This specific catalog number refers to the housing assembly; please verify if your specific order includes the 3300 XL 8mm probe or if it is sold separately.

Q2: Can this housing be used with 5mm probes?
A2: No, the "16" configuration is specifically tailored for the dimensions and mounting requirements of the 3300 XL 8mm probe series.

Q3: What is the benefit of the dome cover?
A3: The dome cover provides an additional layer of mechanical protection and environmental sealing for the probe’s connector and lead wire.