21000-34-00-15-039-04-02 | Bently Nevada 1.5 in Standoff Adapter Proximity Probe Housing

Introduction to the Bently Nevada 21000-34-00-15-039-04-02 Proximity Probe Housing Assembly

When machinery protection demands robust vibration sensing, the 21000-34-00-15-039-04-02 from Bently Nevada provides a proven solution. This proximity probe housing assembly is part of the 21000 series, engineered for external mounting on rotating equipment. It combines an aluminum body with a 304 stainless steel sleeve, ensuring durability in harsh industrial environments. The housing includes a dome cover, threaded ports for conduit connections, and a probe sleeve of optional length. With CSA Type 4 enclosure rating and compliance to API 670 Standard, this assembly meets stringent safety and performance requirements.

Key Features and Technical Specifications of the 21000-34-00-15-039-04-02

The 21000-34-00-15-039-04-02 features a 1.5 in standoff adapter and 3.9 in probe penetration, designed for precise proximity measurements. It uses a 3300 XL 8 mm probe with connector protector, selectable for hazardous area approvals. The probe cable length is 1.0 m, with a maximum combined dimension of 32.9 in (83.5 cm). The assembly weighs 1.1 kg (2.4 lb) typical without fittings. It includes one 3/4-14 NPT plug and requires a 3/4-14 NPT mounting thread. The housing is available with CSA explosion-proof certification for hazardous areas when ordered with specific options.

• Standoff Adapter: 1.5 in (15 option)
• Probe Penetration: 3.9 in (039 option)
• Probe Type: 3300 XL 8 mm with connector protector
• Probe Cable Length: 1.0 m
• Maximum Dimension (C+D): 32.9 in (83.5 cm)
• Weight: 1.1 kg (2.4 lb) typical
• Fitting: One 3/4-14 NPT plug
• Mounting Thread: 3/4-14 NPT
• Material: Aluminum body with 304 stainless steel sleeve
• Certification: CSA Type 4, API 670 compliant

Applications and Use Cases for the 21000-34-00-15-039-04-02

This housing assembly is ideal for externally mounted proximity probes on compressors, turbines, pumps, and fans. Its robust construction ensures reliable vibration and position monitoring in refineries, chemical plants, and power generation facilities. The CSA explosion-proof rating makes it suitable for hazardous areas, while the API 670 compliance guarantees compatibility with industry-standard machinery protection systems. For engineers seeking a durable solution, the 21000-34-00-15-039-04-02 offers a cost-effective upgrade path from older housing designs.

Installation and Setup Guide for the 21000-34-00-15-039-04-02

Mount the housing using the 3/4-14 NPT thread into a suitable port on the machine casing. Ensure the standoff adapter length matches the required probe gap. The probe cable should be routed through the conduit connections, avoiding sharp bends. Tighten the dome cover securely to maintain environmental sealing. For hazardous area installations, verify that the housing is ordered with the correct explosion-proof options. Always follow the manufacturer's manual for torque specifications and wiring details.

Maintenance and Reliability of the 21000-34-00-15-039-04-02

Regularly inspect the housing for signs of corrosion or damage, especially in harsh environments. Check the O-rings and thread seal for integrity to maintain the CSA Type 4 enclosure rating. The aluminum body and stainless steel sleeve resist most industrial atmospheres, but periodic cleaning with a damp cloth is recommended. Verify the probe cable connection and ensure the dome cover is secure. Following these steps extends service life and reduces unplanned downtime.

Compatibility and Integration of the 21000-34-00-15-039-04-02

The 21000-34-00-15-039-04-02 is designed for use with Bently Nevada 3300 XL 8 mm proximity probes and compatible monitoring systems. It integrates seamlessly with existing Bently Nevada racks and modules. The housing's CSA Type 4 rating ensures compatibility with hazardous area installations. For systems requiring API 670 compliance, this assembly meets the standard for externally mounted proximity probe housings.

Frequently Asked Questions about the 21000-34-00-15-039-04-02

What is the standoff adapter length for the 21000-34-00-15-039-04-02?

The standoff adapter length is 1.5 inches, as indicated by the -15 suffix code.

What probe type does the 21000-34-00-15-039-04-02 use?

It uses a 3300 XL 8 mm probe with connector protector, selectable for hazardous area approvals.

Is the 21000-34-00-15-039-04-02 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).

What is the weight of the 21000-34-00-15-039-04-02?

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

What mounting thread does the 21000-34-00-15-039-04-02 require?

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

Product Support and Availability

The 21000-34-00-15-039-04-02 is available from Petro Auto Tech as a new and original factory-packed unit. It comes with a 12-month factory warranty. Contact Petro Auto Tech for current stock status and ordering assistance.