21000-34-05-15-065-04-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the 21000-34-05-15-065-04-02

When you need a rugged and precise solution for vibration monitoring, the 21000-34-05-15-065-04-02 from Bently Nevada delivers. This proximity probe housing assembly is designed for industrial machinery protection. It combines an aluminum body with a 304 stainless steel sleeve for durability. The model includes a 3300 XL 8 mm probe with connector protector. This assembly ensures accurate displacement measurements in demanding environments.

Key Features and Technical Specifications

The 21000-34-05-15-065-04-02 offers several standout features. Each spec is drawn directly from the manufacturer data.

• Probe Option: 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals.
• Probe Cable Length: 0.5 m (20 in).
• Standoff Adapter: 1.5 in.
• Probe Penetration: 6.5 in.
• Fitting Option: One 3/4-14 NPT plug only.
• Mounting Thread: 3/4-14 NPT (required unless standoff adapter is -00).
• Material: Aluminum body with 304 stainless steel sleeve.
• Maximum (C) + (D) Dimension: 13.5 in (34.3 cm).
• Weight: 1.1 kg (2.4 lb) typical, without fittings.

A distinctive spec is the 8 mm probe size. This compact diameter allows installation in tight spaces while maintaining high sensitivity for early fault detection.

Industry Applications and Use Cases

Engineers use the 21000-34-05-15-065-04-02 for critical rotating machinery. It monitors shaft vibration in turbines, compressors, and pumps. The CSA Type 4 enclosure rating suits outdoor and washdown areas. It also meets API 670 standards for externally mounted proximity probes. This makes it a reliable choice for oil and gas, power generation, and petrochemical plants.

Installation and Setup Guidance

Installing the 21000-34-05-15-065-04-02 requires careful attention to mounting. Use the 3/4-14 NPT thread for secure attachment. The standoff adapter length of 1.5 in sets the proper gap. Ensure the probe cable length of 0.5 m is sufficient for your routing. The housing includes one 3/4-14 NPT plug for conduit connections. Always follow Bently Nevada's manual for torque and gap settings.

Maintenance and Reliability Tips

Regular inspection of the 21000-34-05-15-065-04-02 extends its service life. Check the O-rings and thread seal for wear during each maintenance cycle. The aluminum body resists corrosion, but verify the stainless steel sleeve is clean. Because this assembly is used in safety-critical monitoring, periodic verification of probe output is recommended. This proactive approach reduces unplanned downtime.

Compatibility and Integration

The 21000-34-05-15-065-04-02 works with Bently Nevada monitoring systems. It accepts 3300 XL 8 mm proximity probes. The housing is compatible with standard conduit fittings. For hazardous area approvals, order the CA version with E:00, E:01, E:02, or E:04 options. This ensures safe integration in explosive environments.

Frequently Asked Questions

Q: What is the probe cable length for the 21000-34-05-15-065-04-02?

A: The probe cable length is 0.5 m (20 in).

Q: What mounting thread does this housing use?

A: It uses a 3/4-14 NPT thread, required unless the standoff adapter option is -00.

Q: Is the 21000-34-05-15-065-04-02 suitable for hazardous areas?

A: Yes, when ordered with the CA version and E:00, E:01, E:02, or E:04 options, it is CSA rated explosion proof.

Q: What is the weight of this 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 21000-34-05-15-065-04-02 is in stock and ready to ship from Petro Auto Tech. We supply new and original factory-packed units with a 12-month warranty. Contact our team for pricing and lead time.