21000-28-00-30-030-03-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the 21000-28-00-30-030-03-02

When unplanned downtime threatens production targets, the 21000-28-00-30-030-03-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is engineered for hazardous area applications, combining an aluminum body with a 304 stainless steel sleeve. It supports a 3300 XL 8 mm probe with selectable hazardous area approvals, making it a cost-effective choice for critical machinery protection. By integrating this housing, operators reduce the risk of costly failures and extend equipment life.

Key Features & Technical Specs

• Probe Option: 3300 XL 8 mm probe with selectable hazardous area approvals
• Standoff Adapter: 3 inches for precise positioning
• Probe Penetration: 3 inches into the housing
• Mounting Thread: 3/4-14 NPT for secure installation
• Material: Aluminum body with 304 stainless steel sleeve for durability
• Weight: 1.1 kg (2.4 lb) typical, without fittings
• Certifications: CSA Type 4 enclosure, explosion-proof for Class I Divisions 1 and 2 Groups C and D

A distinctive feature is the 3-inch standoff adapter, which ensures optimal probe clearance in tight spaces, reducing installation time and associated labor costs.

Real-World Applications

In petrochemical plants, the 21000-28-00-30-030-03-02 monitors rotating machinery like pumps and compressors. Its CSA explosion-proof rating allows safe operation in Class I Division 1 areas. For example, a refinery using this housing can avoid expensive retrofits by leveraging its API 670 compliance. Additionally, the 3/4-14 NPT mounting simplifies integration into existing conduit systems, cutting installation expenses.

Installation Guide

Mount the housing using the 3/4-14 NPT thread option. Ensure the standoff adapter is set to 3 inches for correct probe depth. Use the included cable seal grip with grommets for cable sizes from 1/8 to 3/8 inches. Tighten the 3/4-14 to 1/2-14 NPT reducer as needed. Always follow Bently Nevada's manual for wiring and torque specifications.

Maintenance & Reliability

Regular inspection of the O-rings and thread seal extends service life. The aluminum body resists corrosion, while the stainless steel sleeve protects the probe. This design minimizes replacement frequency, lowering total cost of ownership. For hazardous areas, verify the enclosure integrity per the manufacturer's guidelines.

Compatibility & Integration

The 21000-28-00-30-030-03-02 works with Bently Nevada 3300 XL 8 mm proximity probes. It integrates with vibration monitoring systems that accept 3/4-14 NPT conduit. The CSA Type 4 enclosure ensures compatibility with North American hazardous area installations.

FAQ about 21000-28-00-30-030-03-02

Q: What probe does the 21000-28-00-30-030-03-02 support?

A: It supports the 3300 XL 8 mm proximity probe with selectable hazardous area approvals.

Q: What is the standoff adapter length?

A: The standoff adapter is 3 inches, allowing precise probe positioning.

Q: Is this housing explosion-proof?

A: Yes, it is CSA certified for Class I Divisions 1 and 2 Groups C and D, and Class II Divisions 1 and 2 Groups E, F, and G.

Q: What mounting thread does it use?

A: It uses a 3/4-14 NPT thread, with an optional 3/4-14 to 1/2-14 NPT reducer included.

Q: What is the weight of the assembly?

A: It weighs 1.1 kg (2.4 lb) typical, without fittings.

Product Support & Availability

The 21000-28-00-30-030-03-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead times. We provide factory warranty and original packaging.