21000-28-05-00-030-04-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the Bently Nevada 21000-28-05-00-030-04-02

When machinery reliability is critical, the 21000-28-05-00-030-04-02 from Bently Nevada provides a robust solution for proximity probe housing. This assembly is designed for hazardous environments, featuring an aluminum body with a 304 stainless steel sleeve. It includes a 3300 XL 8 mm probe with a 0.5 m cable, ensuring accurate vibration and position measurements. By using this housing, you reduce the risk of unplanned downtime and extend equipment life, which directly lowers maintenance costs.

Key Features and Technical Specifications

• Probe Option: 3300 XL 8 mm probe with selectable hazardous area approvals.
• Cable Length: 0.5 m (20 in), providing flexibility for installation.
• Probe Penetration: 3 in (030), ensuring proper sensor depth.
• Fitting Option: One 3/4-14 NPT plug only.
• Mounting Thread: 3/4-14 NPT, required when standoff adapter is not used.
• 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 mm) with 0.5 m cable.
• Certifications: CSA Type 4 enclosure, explosion-proof for hazardous areas.

One distinctive spec is the 8 mm probe size, which offers high sensitivity for detecting shaft vibrations in rotating machinery. This feature helps catch early faults, reducing repair costs and avoiding catastrophic failures.

Applications and Use Cases

In the oil and gas industry, the 21000-28-05-00-030-04-02 is ideal for monitoring compressors and turbines in explosive atmospheres. It is also used in power generation for steam turbine shaft vibration monitoring. The CSA explosion-proof rating ensures safe operation in Class I, Division 1 and 2 environments. By using this housing, you minimize downtime and improve safety, which translates to lower operational costs.

Installation and Setup

Mount the housing using the 3/4-14 NPT thread, ensuring a secure fit. The 0.5 m probe cable allows for easy routing to the monitoring system. Use the provided 3/4-14 NPT plug for unused ports. For hazardous areas, follow the wiring diagram 140979 to maintain non-incendive circuits. Proper installation reduces installation time and avoids rework costs.

Maintenance and Reliability

Inspect the housing periodically for signs of corrosion or damage, especially in harsh environments. The aluminum and stainless steel construction resists wear, extending service life. Regular checks help prevent unexpected failures, reducing maintenance costs over the long term.

Compatibility and Integration

This housing is compatible with Bently Nevada 3300 XL 8 mm proximity probes and can be integrated with most vibration monitoring systems. It meets API 670 standards for externally mounted probe housings, ensuring broad compatibility. Using standard components reduces inventory costs and simplifies upgrades.

Frequently Asked Questions

Q: What is the probe cable length for the 21000-28-05-00-030-04-02?

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

Q: Is this housing certified for hazardous areas?

A: Yes, it has CSA explosion-proof certification for Class I, Division 1 and 2 Groups C and D, and others.

Q: What mounting thread does this model use?

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

Q: What material is the housing made of?

A: The housing has an aluminum body with a 304 stainless steel sleeve.

Q: What is the probe penetration depth?

A: The probe penetration is 3 in (030).

Product Support and Availability

The 21000-28-05-00-030-04-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and delivery options. We ensure fast fulfillment to keep your projects on schedule.