21000-34-00-20-065-04-02 | Bently Nevada 8 mm Proximity Probe Housing Assembly

Introduction to the 21000-34-00-20-065-04-02

When machinery reliability demands precise vibration monitoring, the 21000-34-00-20-065-04-02 from Bently Nevada delivers robust performance. This proximity probe housing assembly is part of the 21000 series, engineered for industrial environments. It includes a 3300 XL 8 mm probe with connector protector and selectable hazardous area approvals. The assembly weighs 1.1 kg (2.4 lb) typical without fittings, ensuring easy handling during installation. By choosing this model, you reduce unplanned downtime and maintenance costs.

Key Features and Technical Specs of the 21000-34-00-20-065-04-02

• Probe Option: 3300 XL 8 mm probe with connector protector and selectable hazardous area approvals.
• Probe Cable Length: Not required (00).
• Standoff Adapter: 2.0 in (20) for precise positioning.
• Probe Penetration: 6.5 in (065) to suit various machine depths.
• Fitting Option: One 3/4-14 NPT plug only (04).
• Mounting Thread: 3/4-14 NPT (-02) required when standoff adapter is not 00.
• Material: Aluminum body with 304 stainless steel sleeve for durability.
• Weight: 1.1 kg (2.4 lb) typical without fittings.

The 2.0 in standoff adapter allows flexible mounting, reducing installation labor costs. The 6.5 in probe penetration ensures accurate readings, minimizing false alarms and maintenance expenses.

Cost-Efficient Applications and Use Cases

In rotating machinery monitoring, the 21000-34-00-20-065-04-02 excels at measuring shaft vibration and position. For example, in a turbine application, its 8 mm probe detects early bearing wear, preventing catastrophic failures. This proactive approach cuts repair costs by up to 30%. Additionally, the CSA Type 4 enclosure rating ensures reliable operation in harsh environments, reducing replacement frequency.

Installation and Setup Guidance

Mount the housing using the 3/4-14 NPT thread for secure attachment. Install the 2.0 in standoff adapter to align the probe with the target. Ensure the probe cable is not required per the 00 option, simplifying wiring. Use the provided 3/4-14 NPT plug for unused ports. Always follow Bently Nevada guidelines for proper gap setting to maximize sensor life.

Maintenance and Reliability for Long-Term Savings

Regularly inspect the O-rings and thread seal for wear to maintain explosion-proof integrity. The aluminum body with 304 stainless steel sleeve resists corrosion, extending service life. By scheduling periodic checks, you avoid unplanned downtime and extend replacement intervals, lowering total cost of ownership.

Compatibility and Integration

The 21000-34-00-20-065-04-02 integrates with Bently Nevada monitoring systems and third-party controllers. It is fully compliant with API 670 Standard for externally mounted proximity probe housings. This compatibility reduces integration costs and ensures seamless data acquisition.

FAQ about the 21000-34-00-20-065-04-02

What is the probe option for the 21000-34-00-20-065-04-02?

The probe option is 34, which includes a 3300 XL 8 mm probe with connector protector and selectable hazardous area approvals.

What is the standoff adapter length?

The standoff adapter is 2.0 in (20), providing precise positioning for the probe.

What is the probe penetration depth?

The probe penetration is 6.5 in (065), suitable for various machine depths.

What mounting thread does the 21000-34-00-20-065-04-02 use?

It uses a 3/4-14 NPT thread (-02) when the standoff adapter is not 00.

Is the housing explosion-proof?

Yes, the housing is rated explosion-proof by CSA when ordered with specific options (E:00, E:01, E:02, or E:04).

Product Support and Availability

The 21000-34-00-20-065-04-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for lifecycle status and ordering assistance.