21000-34-10-30-066-04-02 | Bently Nevada 8 mm Probe Housing Assembly

What Is the 21000-34-10-30-066-04-02?

When external vibration monitoring demands robust protection, the 21000-34-10-30-066-04-02 from Bently Nevada provides a durable solution. This proximity probe housing assembly is part of the 21000 series, designed for hazardous area applications. It features an aluminum body with a 304 stainless steel sleeve, ensuring corrosion resistance and mechanical strength. The assembly includes a 3300 XL 8 mm probe with connector protector, selectable for hazardous area approvals. With a 1.0 m probe cable length, a 3.0 in standoff adapter, and a 6.6 in probe penetration, it meets API 670 standards for externally mounted housings.

Key Features and Technical Specs

• Probe Option: 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals.
• Probe Cable Length: 1.0 m (39 in).
• Standoff Adapter: 3.0 in.
• Probe Penetration: 6.6 in.
• Fitting Option: One 3/4-14 NPT plug only.
• Mounting Thread: 3/4-14 NPT.
• Material: Aluminum body with 304 stainless steel sleeve.
• Maximum (C) + (D) Dimension: 32.9 in (83.5 cm).
• Weight: 1.1 kg (2.4 lb) typical, without fittings.

A distinctive spec is the 8 mm probe size, which enables precise measurement in tight spaces, reducing installation complexity in crowded machinery.

Real-World Applications

In rotating machinery monitoring, the 21000-34-10-30-066-04-02 excels for compressor and turbine applications. Its CSA Type 4 enclosure rating ensures protection against dust and water ingress. The assembly supports intrinsically safe operation when paired with approved probes, making it suitable for oil and gas environments. By using this housing, engineers can reduce downtime from probe damage, as the robust design withstands harsh conditions.

Installation Guide

Mount the housing using the 3/4-14 NPT thread for secure attachment. Ensure the standoff adapter aligns with the probe penetration of 6.6 in for optimal gap. Use the provided 3/4-14 NPT plug for unused ports. Verify the cable length of 1.0 m meets routing needs without strain. Always follow Bently Nevada guidelines for hazardous area installations.

Routine Care and Reliability

Inspect the 21000-34-10-30-066-04-02 periodically for signs of wear on O-rings and thread seal. The aluminum and stainless steel construction resists corrosion, extending service life. For cost savings, regular inspection prevents unplanned replacements. Keep the housing clean from debris to maintain probe accuracy.

Compatibility and Integration

This housing works with Bently Nevada 3300 XL 8 mm proximity probes and compatible monitors. It integrates into existing vibration monitoring systems without modification. The CSA approval ensures compliance with North American hazardous area standards.

Troubleshooting Common Issues

If probe signal loss occurs, check the cable connection at the connector protector. Verify the standoff adapter is not loose. For false readings, inspect the probe tip for contamination. Refer to Bently Nevada documentation for detailed diagnostics.

FAQs about the 21000-34-10-30-066-04-02

Q: What is the probe cable length?

A: The probe cable length is 1.0 m (39 in).

Q: What mounting thread does this housing use?

A: It uses a 3/4-14 NPT mounting thread.

Q: Is this housing rated for hazardous areas?

A: Yes, it supports selectable hazardous area approvals and is CSA explosion-proof rated when ordered with appropriate options.

Q: What is the weight of the assembly?

A: The typical weight is 1.1 kg (2.4 lb) without fittings.

Q: What material is the housing made of?

A: The body is aluminum with a 304 stainless steel sleeve.

Product Support and Availability

The 21000-34-10-30-066-04-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for lifecycle status and ordering assistance.