21000-28-05-00-064-04-02 | Bently Nevada 8 mm Probe Housing Assembly

What Is the 21000-28-05-00-064-04-02?

When machinery vibration threatens uptime, the 21000-28-05-00-064-04-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is designed for externally mounted probes in hazardous areas. It combines an aluminum body with a 304 stainless steel sleeve for durability. The housing supports a 3300 XL 8 mm probe with a 0.5 m (20 in) cable. Its 6.4 in probe penetration ensures accurate measurements in tight spaces.

Key Features & Technical Specs

• Probe Option: 3300 XL 8 mm probe with selectable hazardous area approvals.
• Probe Cable Length: 0.5 m (20 in).
• Probe Penetration: 6.4 in (064 suffix).
• Fitting Option: One 3/4-14 NPT plug.
• Mounting Thread: 3/4-14 NPT.
• Material: Aluminum body with 304 stainless steel sleeve.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.
• Certifications: CSA Type 4, explosion-proof for hazardous areas; RoHS compliant.

The 8 mm probe delivers high-resolution data for early fault detection. This spec is vital for preventing unplanned downtime in rotating machinery.

Industry Applications

In oil and gas refineries, the 21000-28-05-00-064-04-02 monitors compressor vibrations. Similarly, petrochemical plants use it for pump and turbine protection. Its CSA Type 4 enclosure suits harsh environments. The housing also meets API 670 standards for externally mounted probes. Consequently, engineers trust it for critical asset monitoring.

Installation Guide

Mount the housing using the 3/4-14 NPT thread. Ensure the probe sleeve length matches your clearance requirements. The 0.5 m cable connects to a monitoring system. Use the included 3/4-14 NPT plug for conduit sealing. Always follow Bently Nevada’s manual for torque specifications. Proper installation prevents false readings and extends sensor life.

Routine Care

Inspect the housing periodically for corrosion or damage. Verify O-ring integrity to maintain the explosion-proof seal. Clean the exterior with a dry cloth. Avoid solvents that could degrade the aluminum or stainless steel. Regular checks every six months are recommended. This practice ensures reliable performance in demanding conditions.

Compatibility & Integration

The 21000-28-05-00-064-04-02 works with Bently Nevada monitoring systems. It accepts 3300 XL 8 mm probes with hazardous area approvals. The CSA certification ensures safe operation in Class I, Division 1 and 2 areas. For non-incendive circuits, refer to drawing 140979. The housing integrates seamlessly with existing vibration monitoring setups.

Common Questions

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

A: The standard cable length is 0.5 m (20 in). For longer runs, contact Petro Auto Tech for options.

Q: Can this housing be used in intrinsically safe applications?

A: Yes, when ordered with a hazardous area approved probe, it supports intrinsically safe circuits.

Q: What mounting thread does the housing require?

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

Q: Is this housing suitable for outdoor use?

A: Yes, its CSA Type 4 enclosure rating makes it weather-resistant.

Q: What is the weight of the assembly?

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

Product Support & Availability

The 21000-28-05-00-064-04-02 is in stock and ready to ship. Petro Auto Tech offers new, original factory-packed units with a 12-month warranty. Contact our team for bulk pricing or expedited delivery.