21000-28-05-30-030-04-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the Bently Nevada 21000-28-05-30-030-04-02

When you need reliable vibration monitoring in hazardous environments, the 21000-28-05-30-030-04-02 from Bently Nevada offers a proven solution. This proximity probe housing assembly is designed for externally mounted probes. It provides a robust enclosure that meets CSA Type 4 standards. The housing is fully compliant with API 670. Engineers trust this model for its durable construction and precise fit.

Key Features and Technical Specs of the 21000-28-05-30-030-04-02

• Probe Type: 3300 XL 8 mm probe with selectable hazardous area approvals.
• Probe Cable Length: 0.5 m (20 in).
• Standoff Adapter Length (Option C): 3 in.
• Probe Penetration (Option D): 3 in.
• Fittings Option: One 3/4-14 NPT plug.
• Mounting Thread: 3/4-14 NPT.
• Housing Material: Aluminum body with 304 stainless steel sleeve.
• Weight: 1.1 kg (2.4 lb) typical without fittings.
• Maximum (C)+(D) Dimension: 13.5 in (34.3 cm) with 0.5 m cable.

One distinctive spec is the 3 in standoff adapter length. This allows precise positioning of the probe tip relative to the target surface. Accurate placement is critical for reliable vibration data.

Applications and Use Cases

This housing assembly is ideal for rotating machinery monitoring. It is commonly used in compressors, turbines, and pumps. The CSA explosion-proof rating makes it suitable for oil and gas facilities. It also works well in chemical plants where hazardous atmospheres exist. The API 670 compliance ensures it meets industry standards for external mounting.

Installation and Setup Guide

Mount the housing securely using the 3/4-14 NPT thread. Ensure the probe penetration (C plus D) does not exceed 300 mm without sleeve support. For penetrations between 1.0 and 2.0 inches, counter boring may be needed to reduce side view effects. The adjustment range of option D is 13 mm (±0.5 in). Always follow Bently Nevada’s installation manual for best results.

Maintenance and Reliability Tips

Inspect the housing periodically for signs of corrosion or damage. Check the O-rings and thread seal for integrity. The aluminum body and stainless steel sleeve offer good resistance to harsh environments. Regular inspection helps extend service life and prevent unplanned downtime.

Compatibility and Integration

The 21000-28-05-30-030-04-02 works with Bently Nevada 3300 XL 8 mm proximity probes. It is designed for use with Bently Nevada monitoring systems. The housing supports both standard and intrinsically safe probe configurations. For integration details, refer to the official Bently Nevada documentation.

FAQs about the 21000-28-05-30-030-04-02

Q: What is the maximum cable length for this housing assembly?

A: The probe cable length is 0.5 m (20 in). For longer runs, consult the Bently Nevada manual.

Q: Is this housing suitable for hazardous areas?

A: Yes, it is CSA approved as explosion proof for hazardous areas and rated CSA Type 4.

Q: What is the weight of the 21000-28-05-30-030-04-02?

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

Q: Can I use a different probe with this housing?

A: This housing is designed specifically for the 3300 XL 8 mm probe. Using other probes may affect performance.

Q: What mounting thread does this model use?

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

Product Support and Availability

The 21000-28-05-30-030-04-02 is available from Petro Auto Tech. It comes as new and original in factory packing. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.