21000-34-00-00-030-04-02 | Bently Nevada 3.0 in Probe Housing Assembly

Product Overview: Bently Nevada 21000-34-00-00-030-04-02

When machinery vibration threatens uptime, the 21000-34-00-00-030-04-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is part of the 21000 series, designed for externally mounted probes in hazardous areas. It features an aluminum body with a 304 stainless steel sleeve, ensuring durability in harsh industrial environments. The assembly includes a dome cover, threaded conduit ports, an optional probe sleeve, O-rings, and a reverse mount proximity probe. With CSA Type 4 enclosure rating and explosion-proof certification, it meets API 670 standards for reliable vibration monitoring.

Key Features & Technical Specs

• Probe Option: 3300 XL 8 mm probe with connector protector for hazardous area approvals.
• Probe Penetration: 3.0 in (030 suffix) for precise gap setting.
• Cable Length: 1.0 m probe cable for flexible installation.
• Mounting Thread: 3/4-14 NPT for secure conduit connection.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.
• Maximum (C) + (D) Dimension: 32.9 in (83.5 cm) for overall length.
• Material: Aluminum body with 304 stainless steel sleeve for corrosion resistance.
• Fitting Option: One 3/4-14 NPT plug only for simple sealing.

A standout feature is the 3.0 in probe penetration, which allows accurate gap adjustment for proximity probes in tight spaces. This reduces installation errors and improves measurement consistency.

Applications & Use Cases

Maintenance engineers rely on the 21000-34-00-00-030-04-02 for critical rotating machinery monitoring. It is ideal for compressors, turbines, and pumps where early vibration detection prevents catastrophic failure. Because it is CSA certified explosion-proof, it suits oil and gas, chemical, and power generation facilities. Moreover, its API 670 compliance ensures compatibility with standard vibration monitoring systems. For example, in a refinery, this housing assembly provides reliable shaft displacement data, reducing unplanned downtime.

Installation & Setup

Installing the 21000-34-00-00-030-04-02 requires careful attention to mounting thread and probe penetration. First, ensure the 3/4-14 NPT thread matches the conduit fitting. Then, set the probe gap to 3.0 in using the standoff adapter if needed. The assembly includes a thread seal to prevent leaks. For hazardous areas, use explosion-proof fittings as specified. Always follow Bently Nevada's manual for torque values and wiring. This straightforward process minimizes setup time and errors.

Maintenance & Reliability

Routine inspection of the 21000-34-00-00-030-04-02 extends its service life. Check O-rings and seals for wear every six months. Clean the dome cover and probe sleeve with a soft cloth to avoid debris buildup. The aluminum and stainless steel construction resists corrosion, but verify in harsh chemical environments. By following these steps, you maintain measurement accuracy and reduce replacement costs. This proactive approach aligns with cost-benefit goals by preventing unplanned maintenance.

Compatibility & Integration

The 21000-34-00-00-030-04-02 integrates with Bently Nevada monitoring systems and third-party vibration analyzers. It uses a standard 3300 XL 8 mm probe with connector protector, ensuring easy replacement. The 1.0 m cable length suits most junction box connections. For integration, verify the system accepts proximity probe inputs. This housing assembly works with both new installations and retrofits, offering flexibility for maintenance teams.

FAQ about 21000-34-00-00-030-04-02

Q: What is the probe penetration of the 21000-34-00-00-030-04-02?

A: The probe penetration is 3.0 in (030 suffix), allowing precise gap setting for accurate vibration measurement.

Q: Is this housing assembly explosion-proof?

A: Yes, it is CSA certified explosion-proof for hazardous areas when ordered with appropriate options.

Q: What is the cable length included?

A: The assembly comes with a 1.0 m probe cable for flexible installation.

Q: What mounting thread does it use?

A: It uses a 3/4-14 NPT mounting thread for secure conduit connection.

Q: What is the weight of the 21000-34-00-00-030-04-02?

A: It weighs 1.1 kg (2.4 lb) typical, without fittings.

Product Support & Availability

The 21000-34-00-00-030-04-02 is in stock and ready to ship from Petro Auto Tech. As a trusted industrial automation parts supplier, we offer new and original factory-packed units with a 12-month warranty. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.