21000-34-00-15-018-04-02 | Bently Nevada 1.5 in Standoff Adapter Proximity Probe Housing

What Is the 21000-34-00-15-018-04-02?

When machinery vibration threatens uptime, the 21000-34-00-15-018-04-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is designed for hazardous area use with CSA Type 4 and API 670 compliance. It includes an aluminum body with a 304 stainless steel sleeve, a 3300 XL 8 mm probe with connector protector, and a 1.5 in standoff adapter. The assembly weighs 1.1 kg (2.4 lb) typical without fittings, making it suitable for demanding industrial environments.

Key Features & Technical Specs

• Probe Option: 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals.
• Standoff Adapter: 1.5 in length for precise positioning.
• Probe Penetration: 1.8 in for consistent measurement.
• 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.
• Probe Cable Length: 1.0 m.
• Maximum (C) + (D) Dimension: 32.9 in (83.5 cm).
• Weight: 1.1 kg (2.4 lb) typical without fittings.

Each spec contributes to cost efficiency: the 1.5 in standoff adapter reduces installation time, while the 304 stainless steel sleeve extends service life and lowers replacement costs.

Real-World Applications

In petrochemical plants and refineries, the 21000-34-00-15-018-04-02 monitors critical rotating machinery like compressors and turbines. Its explosion-proof rating (CSA Type 4) ensures safe operation in hazardous zones, reducing downtime from false trips. For API 670 compliant installations, this housing assembly meets industry standards, minimizing compliance costs.

Installation Guide

Mount the housing using the 3/4-14 NPT thread option. Ensure the standoff adapter is correctly set to 1.5 in for optimal probe clearance. Use the supplied 3/4-14 NPT plug to seal unused ports. The 1.0 m probe cable connects directly to a Bently Nevada monitor. Always follow manufacturer torque specifications to avoid damage.

Routine Care & Reliability

Inspect the O-rings and thread seal annually for wear. The aluminum body resists corrosion, but check the stainless steel sleeve for pitting in harsh environments. Regular inspection reduces unplanned maintenance costs and extends assembly life by up to 20%.

Integration Guide

The 21000-34-00-15-018-04-02 integrates with Bently Nevada 3300 XL monitoring systems. Use the 1.0 m probe cable for direct connection. For hazardous areas, ensure the approved probe option is selected. No additional adapters are needed for API 670 compliant setups.

Common Questions

Q: What is the standoff adapter length for the 21000-34-00-15-018-04-02?

A: The standoff adapter is 1.5 in, as indicated by the suffix code -15.

Q: What probe cable length is included?

A: The probe cable length is 1.0 m, specified by the suffix code -00.

Q: Is this housing suitable for hazardous areas?

A: Yes, it is rated explosion proof for hazardous areas with CSA Type 4 enclosure and API 670 compliance.

Q: What mounting thread is required?

A: The mounting thread is 3/4-14 NPT, unless the standoff adapter option is -00.

Q: What is the weight of the assembly?

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

Product Support & Availability

The Bently Nevada 21000-34-00-15-018-04-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for lead times and bulk pricing. We provide factory-sealed units with full traceability.