21000-16-05-15-102-03-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the 21000-16-05-15-102-03-02

When machinery vibration threatens uptime, the 21000-16-05-15-102-03-02 provides a robust solution. This Bently Nevada proximity probe housing assembly is engineered for externally mounted vibration monitoring. It houses a 3300 XL 8 mm probe with a 0.5 m (20 in) cable. The assembly includes a 1.5 in (38 mm) standoff adapter and a 10.2 in probe penetration. This configuration ensures accurate, repeatable measurements in demanding industrial environments.

Key Features and Technical Specs

• Probe Option: 3300 XL 8 mm probe with connector.
• Probe Cable Length: 0.5 m (20 in).
• Standoff Adapter: 1.5 in (38 mm).
• Probe Penetration (D): 10.2 in.
• Fittings: One 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, cable seal grip with grommets for three cable sizes.
• Mounting Thread: 3/4-14 NPT.
• Material: Aluminum body with 304 stainless steel sleeve.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.

A distinctive feature is the 8 mm probe size. This compact diameter allows installation in tight spaces while maintaining high sensitivity for early fault detection. The 304 stainless steel sleeve provides corrosion resistance in harsh environments.

Applications and Use Cases

Engineers rely on the 21000-16-05-15-102-03-02 for critical rotating machinery monitoring. It is commonly used on pumps, compressors, turbines, and fans. The housing is certified as CSA Type 4 and complies with API 670 Standard for externally mounted proximity probe housings. This makes it suitable for hazardous areas requiring explosion-proof enclosures. Additionally, it supports intrinsically safe applications when paired with approved proximity probes.

Installation and Setup

Mount the housing using the 3/4-14 NPT thread. For probe penetration lengths between 1.0 and 2.0 inches, counter bore the machine case to reduce side view or rear view effects. If the total probe penetration (C plus D) exceeds 300 mm (12 in), add sleeve support near the probe to prevent resonance. The adjustment range of probe penetration option D is 13 mm (±0.5 in). Use the provided fittings to secure conduit connections.

Maintenance and Reliability

Regular inspection of the housing and probe assembly helps ensure long-term reliability. Check the O-rings and thread seal for wear during routine maintenance. The aluminum body and stainless steel sleeve resist corrosion. Following Bently Nevada's guidelines extends service life and reduces unplanned downtime. This proactive approach aligns with cost-benefit goals by minimizing repair expenses.

Compatibility and Integration

The 21000-16-05-15-102-03-02 is designed for use with Bently Nevada monitoring systems. It integrates with vibration monitors and data acquisition equipment. The housing accommodates standard 8 mm proximity probes. For hazardous area installations, ensure the probe and housing are certified together. The assembly is CSA approved for Class 1 Divisions 1 and 2 Groups C and D, and Class 2 Divisions 1 and 2 Groups E, F, and G.

FAQs about the 21000-16-05-15-102-03-02

Q: What is the maximum probe penetration length for this housing?

A: The maximum probe penetration (C plus D) is 13.5 in (34.3 cm) with a 0.5 m cable and visible probe P/N and S/N.

Q: Can this housing be used in explosive atmospheres?

A: Yes, the 21000 aluminum housing is CSA certified for explosion-proof applications in hazardous areas.

Q: What fittings are included with the 21000-16-05-15-102-03-02?

A: It includes one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and a cable seal grip with grommets for three cable sizes.

Q: What is the weight of this assembly?

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

Q: Does the housing comply with API 670?

A: Yes, it is fully compliant with the American Petroleum Institute's API 670 Standard for externally mounted proximity probe housings.

Product Support and Availability

The 21000-16-05-15-102-03-02 is available from Petro Auto Tech. It ships as new and original in factory packing. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.