21000-00-00-00-113-00-02 | Bently Nevada 11.3 in Probe Penetration Housing Assembly

Introduction to the 21000-00-00-00-113-00-02

When you need a robust solution for externally mounted proximity probes in hazardous environments, the 21000-00-00-00-113-00-02 from Bently Nevada delivers. This aluminum housing assembly with a 304 stainless steel sleeve is designed for explosion-proof applications. It supports a probe penetration of 11.3 inches, making it suitable for various industrial machinery monitoring tasks.

Key Features and Technical Specifications

• Probe Penetration: 11.3 in (113 suffix code)
• Material: Aluminum body with 304 stainless steel sleeve
• Mounting Thread: 3/4-14 NPT (option 02)
• Weight: 1.1 kg (2.4 lb) typical, without fittings
• Fitting Option: Without fittings (00 suffix)
• Probe Option: Probe not required (00 suffix)
• Probe Cable Length: Not required (00 suffix)
• Standoff Adapter: Not included (00 suffix)

One distinctive spec is the 11.3-inch probe penetration, which allows the probe to reach deeper into the machine casing for accurate vibration readings. This feature is critical for large rotating equipment where standard probe lengths fall short.

Applications and Use Cases

This housing assembly is ideal for monitoring vibration in pumps, compressors, turbines, and other rotating machinery. In petrochemical plants, for instance, the explosion-proof rating ensures safe operation in Class I Division 1 and 2 areas. Additionally, its CSA Type 4 enclosure rating provides protection against dust and water ingress, making it suitable for outdoor installations.

Installation and Setup

Mount the housing using the 3/4-14 NPT thread option. Ensure the probe sleeve is correctly inserted to achieve the 11.3-inch penetration depth. Use the provided O-rings and thread seal to maintain the explosion-proof integrity. For hazardous area installations, follow the wiring diagram 140979 to maintain non-incendive circuit compliance.

Maintenance and Reliability

Periodically inspect the housing for corrosion or damage, especially in harsh environments. Check the O-rings and seals during routine maintenance to preserve the enclosure rating. The aluminum body with stainless steel sleeve offers excellent corrosion resistance, reducing long-term replacement costs.

Compatibility and Integration

The 21000 housing is compatible with Bently Nevada proximity probes that meet the API 670 standard. It can be used with both standard and hazardous area approved probes. The housing supports reverse mount probe configurations for flexible installation.

Troubleshooting and Common Issues

If the probe does not achieve the expected penetration, verify that the probe sleeve length matches the 11.3-inch specification. Ensure the mounting thread is properly aligned to avoid cross-threading. For electrical issues, confirm that the wiring follows the non-incendive circuit requirements.

FAQ about the 21000-00-00-00-113-00-02

Q: What is the probe penetration of this housing?

A: The probe penetration is 11.3 inches, as indicated by the 113 suffix code.

Q: Is this housing suitable for hazardous areas?

A: Yes, it is CSA certified for explosion-proof applications in Class I Division 1 and 2 Groups C and D, and Class II Division 1 and 2 Groups E, F, and G.

Q: What material is the housing made of?

A: The body is aluminum with a 304 stainless steel sleeve.

Q: What mounting thread does it use?

A: The mounting thread option is 3/4-14 NPT (suffix 02).

Q: Does the housing come with a probe?

A: No, the probe option is 00, meaning probe not required.

Product Support and Availability

The 21000-00-00-00-113-00-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead times. We provide a 12-month factory warranty on all new and original products.