21000-34-00-30-030-04-02 | Bently Nevada 3.0 in Standoff Adapter Probe Housing

Introduction to the 21000-34-00-30-030-04-02

When machinery protection demands precise vibration measurement, the 21000-34-00-30-030-04-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is part of the 21000 series, engineered for externally mounted probes in industrial environments. It combines an aluminum body with a 304 stainless steel sleeve for durability and corrosion resistance. The assembly supports a 3300 XL 8 mm probe with connector protector, making it suitable for hazardous area approvals. With a typical weight of 1.1 kg (2.4 lb), it offers a compact yet sturdy design for continuous operation.

Key Features and Technical Specifications of the 21000-34-00-30-030-04-02

• Probe Option: 3300 XL 8 mm probe with connector protector for selectable hazardous area approvals.
• Standoff Adapter: 3.0 in length for precise probe positioning.
• Probe Penetration: 3.0 in into the housing.
• Fitting Option: One 3/4-14 NPT plug for conduit connection.
• Mounting Thread: 3/4-14 NPT, required when standoff adapter is not -00.
• Material: Aluminum body with 304 stainless steel sleeve for strength and corrosion resistance.
• Maximum Dimension (C + D): 32.9 in (83.5 cm) with visible probe P/N and S/N.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.

This assembly includes a dome cover, threaded ports, probe sleeve, O-rings, reverse mount probe, thread seal, and optional conduit fittings. It is CSA Type 4 rated and compliant with API 670 standard for externally mounted proximity probe housings.

Applications and Use Cases for the 21000-34-00-30-030-04-02

In rotating machinery monitoring, the 21000-34-00-30-030-04-02 excels at measuring shaft vibration and position. It is ideal for use in turbines, compressors, pumps, and motors where reliable proximity sensing is critical. The assembly supports intrinsically safe applications when paired with hazardous area approved probes. Its CSA Type 4 enclosure rating ensures protection in harsh industrial environments. Additionally, the 3.0 in standoff adapter allows flexible mounting in tight spaces.

Installation and Setup of the 21000-34-00-30-030-04-02

Installing the 21000-34-00-30-030-04-02 requires mounting the housing to a machine casing using the 3/4-14 NPT thread. Ensure the standoff adapter is correctly positioned to achieve the 3.0 in probe penetration. Use the included thread seal and O-rings to prevent leakage. For hazardous areas, select the appropriate probe option with connector protector. Conduit fittings can be added as needed for cable routing. Always follow Bently Nevada guidelines for proper alignment and torque specifications.

Maintenance and Reliability of the 21000-34-00-30-030-04-02

Routine inspection of the 21000-34-00-30-030-04-02 ensures long-term reliability. Check the O-rings and thread seal periodically for wear or damage. Verify that the probe cable is securely connected and free from abrasion. The aluminum and stainless steel construction resists corrosion, extending service life in demanding environments. For optimal performance, confirm that the housing remains properly sealed against moisture and debris. Regular maintenance reduces downtime and supports continuous machinery protection.

Compatibility and Integration of the 21000-34-00-30-030-04-02

The 21000-34-00-30-030-04-02 integrates with Bently Nevada monitoring systems for vibration analysis. It is compatible with 3300 XL 8 mm proximity probes and associated cables. The housing supports both standard and hazardous area probe configurations. For explosion-proof installations, use CA versions of the housing with appropriate fitting options. The assembly meets API 670 standards, ensuring compatibility with industry-standard mounting practices.

Frequently Asked Questions about the 21000-34-00-30-030-04-02

What is the standoff adapter length for the 21000-34-00-30-030-04-02?

The standoff adapter length is 3.0 in, as indicated by the suffix code -30.

What mounting thread does the 21000-34-00-30-030-04-02 use?

It uses a 3/4-14 NPT mounting thread, specified by the -02 suffix.

Is the 21000-34-00-30-030-04-02 suitable for hazardous areas?

Yes, it supports selectable hazardous area approvals when ordered with appropriate probe options.

What is the maximum dimension of the 21000-34-00-30-030-04-02 assembly?

The maximum (C + D) dimension is 32.9 in (83.5 cm) with visible probe P/N and S/N.

What materials are used in the 21000-34-00-30-030-04-02 housing?

The housing features an aluminum body with a 304 stainless steel sleeve.

Product Support and Availability

The 21000-34-00-30-030-04-02 is available in new and original factory packaging from Petro Auto Tech. It comes with a 12-month factory warranty. Contact Petro Auto Tech for current stock and ordering information.