21000-28-10-30-066-04-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the Bently Nevada 21000-28-10-30-066-04-02 Proximity Probe Housing Assembly

When monitoring critical rotating machinery, reliable vibration sensing is essential. The 21000-28-10-30-066-04-02 from Bently Nevada provides a robust solution for proximity probe installation. This housing assembly supports a 3300 XL 8 mm probe with selectable hazardous area approvals. It is built for demanding industrial environments where accuracy and safety matter.

Key Features and Technical Specifications of the 21000-28-10-30-066-04-02

• Probe option: 3300 XL 8 mm probe with connector, selectable hazardous area approvals
• Probe cable length: 1.0 m (39 in)
• Standoff adapter: 3 in
• Probe penetration: 6.6 in
• Fitting option: One 3/4-14 NPT plug only
• Mounting thread: 3/4-14 NPT (required when standoff adapter length is not 00)
• Material: Aluminum body with 304 stainless steel sleeve
• Weight: 1.1 kg (2.4 lb) typical, without fittings
• Maximum (C) + (D) dimension with visible probe: 32.9 in (83.5 cm)
• Maximum (C) + (D) dimension: 17.0 in (43.18 cm)

The 21000 housing includes a dome cover, threaded ports for conduit connections, a probe sleeve of optional length, O-rings, a reverse mount proximity probe, a thread seal, optional conduit fittings, and an optional standoff adapter. This design simplifies installation and ensures reliable performance.

Applications and Use Cases for the 21000-28-10-30-066-04-02

Industries rely on the 21000-28-10-30-066-04-02 for vibration monitoring in turbines, compressors, and pumps. Its CSA Type 4 enclosure rating and explosion-proof certification make it suitable for hazardous locations. The assembly fully complies with the API 670 Standard for externally mounted proximity probe housings. Consequently, it is a trusted choice for oil and gas, petrochemical, and power generation facilities.

Installation and Setup Guidance

Mount the housing using the 3/4-14 NPT thread option. Ensure the standoff adapter length is 3 in as specified. Connect the 1.0 m probe cable to the monitoring system. Use the provided 3/4-14 NPT plug for unused ports. Always follow the manufacturer's manual for wiring and torque specifications. Proper installation ensures accurate vibration readings and long service life.

Maintenance and Reliability Tips

Inspect the housing periodically for signs of wear or damage. Check O-rings and seals to maintain the Type 4 enclosure integrity. Verify that the probe cable is securely connected. The aluminum body with stainless steel sleeve resists corrosion in harsh environments. Regular maintenance helps prevent unplanned downtime and extends equipment life.

Compatibility and Integration

The 21000 housing is compatible with Bently Nevada monitoring systems. It works with 3300 XL 8 mm proximity probes that have hazardous area approvals. The assembly is certified for use in North America Class I Divisions 1 and 2 Groups C, D, E, F, and G, as well as Class III areas. It is also RoHS compliant. For non-North American end users, the standard 21000 housing must be ordered.

Frequently Asked Questions about the 21000-28-10-30-066-04-02

What is the probe cable length for the 21000-28-10-30-066-04-02?

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

What is the mounting thread option for this housing?

The mounting thread option is 3/4-14 NPT.

Is the 21000-28-10-30-066-04-02 suitable for hazardous areas?

Yes, it is certified by CSA for explosion-proof applications in Class I Divisions 1 and 2 Groups C and D, Class II Divisions 1 and 2 Groups E, F, and G, and Class III.

What materials are used in the housing construction?

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

What is the typical weight of the assembly?

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

Product Support and Availability

The 21000-28-10-30-066-04-02 is available as new and original in factory packing from Petro Auto Tech. It comes with a 12-month factory warranty. Contact Petro Auto Tech for current lifecycle status and ordering details.