21000-00-00-00-035-04-02 | Bently Nevada 3.5 in Probe Housing Assembly

What Is the Bently Nevada 21000-00-00-00-035-04-02?

When machinery vibration threatens uptime, the 21000-00-00-00-035-04-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is part of the 21000 series, engineered for industrial environments where reliable measurement is critical. With a 3.5 inch probe penetration and a one 3/4-14 NPT plug fitting, it offers precise installation flexibility.

Key Features and Technical Specs

• Probe Penetration: 035 equals 3.5 inches, ensuring accurate sensor placement.
• Fitting Option: 04 includes one 3/4-14 NPT plug only.
• Mounting Thread: 02 specifies 3/4-14 NPT, requiring a standoff adapter if length option is not 00.
• Material: Aluminum body with a 304 stainless steel sleeve for durability.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.
• Certifications: CSA explosion-proof for hazardous areas; RoHS compliant.

One distinctive spec is the 3.5 inch probe penetration, which allows deep insertion into machinery for reliable vibration data. This feature directly supports predictive maintenance programs.

Real-World Applications

In petrochemical plants and refineries, the 21000-00-00-00-035-04-02 monitors rotating equipment like pumps and compressors. Its CSA Type 4 enclosure rating makes it suitable for outdoor and washdown areas. For maintenance engineers, this housing assembly reduces false readings and extends sensor life.

Installation Guide

Mount the housing using the 3/4-14 NPT thread option. Ensure the standoff adapter is ordered if probe length requires it. Tighten the dome cover securely to maintain the explosion-proof seal. Verify that conduit connections are properly sealed per local codes.

Routine Care and Reliability

Inspect the O-rings and thread seal annually for wear. Clean the exterior with a damp cloth; avoid solvents. The aluminum and stainless steel construction resists corrosion, supporting long service intervals. Regular checks align with cost-saving maintenance strategies.

Common Questions About the 21000-00-00-00-035-04-02

Q: What is the probe penetration length?

A: The suffix 035 indicates a 3.5 inch probe penetration.

Q: Is this housing approved for hazardous areas?

A: Yes, it is CSA certified explosion-proof for Class I Divisions 1 and 2 Groups C and D.

Q: What material is the housing made of?

A: It has an aluminum body with a 304 stainless steel sleeve.

Q: Does it come with a standoff adapter?

A: No, the suffix 00 means no standoff adapter is included; order separately if needed.

Q: What is the typical weight?

A: Approximately 1.1 kg (2.4 lb) without fittings.

Product Support and Availability

The Bently Nevada 21000-00-00-00-035-04-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead times.