21000-34-05-15-018-03-02 | Bently Nevada 0.5m Cable Proximity Probe Housing Assembly

Introduction to the 21000-34-05-15-018-03-02

When machinery vibration monitoring demands robust and explosion-proof housing, the 21000-34-05-15-018-03-02 from Bently Nevada delivers a reliable solution. This Proximity Probe Housing Assembly combines a 3300 XL 8 mm probe with connector protector, a 0.5 m (20 in) probe cable, and a 1.5 in standoff adapter. The assembly supports selectable hazardous area approvals and is fully compliant with API 670 Standard for externally mounted proximity probe housings.

Engineered for harsh industrial environments, the 21000-34-05-15-018-03-02 features an aluminum body with a 304 stainless steel sleeve. It includes a dome cover, threaded ports for conduit connections, O-rings, a reverse mount proximity probe, and a thread seal. The package also comes with one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and a cable seal grip with grommets for cable sizes from 1/8 to 3/8 inches.

Key Features and Technical Specifications

• Probe Cable Length: 0.5 m (20 in) for flexible installation.
• Standoff Adapter: 1.5 in for precise probe positioning.
• Probe Penetration: 1.8 in ensures accurate measurement.
• Mounting Thread: 3/4-14 NPT for secure attachment.
• Material: Aluminum body with 304 stainless steel sleeve for durability.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.
• Maximum (C) + (D) Dimension: 13.5 in (34.3 cm).
• Temperature Range (3300 XL 8mm Probe): Operating and storage -51°C to +177°C (-60°F to +351°F).

A distinctive feature of the 21000-34-05-15-018-03-02 is its CSA Type 4 enclosure certification, making it explosion-proof for hazardous areas. This ensures safe operation in environments where flammable gases or dusts are present, a critical requirement for oil and gas, petrochemical, and mining applications.

Industry Applications and Use Cases

The 21000-34-05-15-018-03-02 is ideal for vibration monitoring in rotating machinery such as turbines, compressors, pumps, and motors. In petrochemical plants, its explosion-proof rating allows safe installation in Zone 1 hazardous areas. Similarly, in power generation facilities, the assembly provides reliable shaft displacement and eccentricity measurements. The API 670 compliance ensures compatibility with standard protection systems, reducing integration effort.

Installation and Setup Guide

Mount the 21000-34-05-15-018-03-02 using the 3/4-14 NPT thread for a secure fit. The standoff adapter of 1.5 in helps position the probe at the correct gap. Ensure the probe cable (0.5 m) is routed without sharp bends to avoid damage. Use the provided cable seal grip with grommets for cable sizes between 1/8 and 3/8 inches to maintain the explosion-proof seal. Always follow Bently Nevada's installation manual for proper torque and gap settings.

Maintenance and Reliability Tips

Regularly inspect the O-rings and thread seal for wear to maintain the explosion-proof integrity. Check the cable seal grip for tightness and the dome cover for corrosion. The aluminum body with stainless steel sleeve resists environmental stress, but periodic cleaning with a dry cloth is recommended. Following these steps extends the service life and reduces unplanned downtime, offering long-term cost savings.

FAQs about the 21000-34-05-15-018-03-02

What is the probe cable length for the 21000-34-05-15-018-03-02?

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

What mounting thread option does this assembly use?

It uses a 3/4-14 NPT mounting thread.

Is the 21000-34-05-15-018-03-02 suitable for hazardous areas?

Yes, it is rated explosion proof with CSA Type 4 enclosure certification.

What is the weight of the 21000-34-05-15-018-03-02 without fittings?

The typical weight is 1.1 kg (2.4 lb).

What is the operating temperature range for the 3300 XL 8 mm probe?

The operating and storage temperature range is -51°C to +177°C (-60°F to +351°F).

Product Support and Availability

The Bently Nevada 21000-34-05-15-018-03-02 is available in new and original factory packaging with a 12-month warranty. Contact Petro Auto Tech for current stock levels and ordering details. Our team can assist with technical inquiries and ensure fast delivery to your facility.