Bently Nevada 21022-12-05-035-02 Dual Axial Probe Housing Assembly

Description

Designed for critical rotating machinery protection, the Bently Nevada 21022-12-05-035-02 provides robust environmental isolation and precise mechanical alignment for dual proximity sensors. This specialized Dual Axial Probe Housing Assembly is engineered to withstand harsh industrial environments, featuring a rugged housing that protects the integrated 3300 XL 8 mm proximity probe from external debris, process moisture, and mechanical impact. With its precise 3.5-inch probe penetration configuration, it maintains consistent gaps for accurate vibration, thrust, and axial position measurements on high-speed turbines, compressors, and pumps.

Features

• High-Grade Construction: Built with a sand-cast, low-copper aluminum alloy housing matched with 304 stainless steel sleeves for excellent structural integrity.
• Pre-Configured Transducer: Integrates a 3300 XL 8 mm probe featuring a 0.5-meter (20-inch) coaxial cable and standard connector.
• Dual-Entry Interface: Equipped with two 3/4-14 NPT fittings and two matching NPT plugs to facilitate robust conduit routing and sealing.
• Industrial Protection: Shields delicate transducer connections against moisture, oil, and atmospheric contaminants common in petrochemical and power generation plants.

Applications

• Steam and gas turbine axial displacement monitoring
• Centrifugal and reciprocating compressor shaft vibration analysis
• High-pressure boiler feed pumps and industrial fans
• Heavy industrial rotating machinery protection systems

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility

This probe housing assembly is fully compatible with standardized Bently Nevada 3300 XL series monitoring systems. When replacing legacy single axial housings or older non-XL probe assemblies, ensure that physical clearance around the mounting deck accommodates the wider envelope of this dual NPT port housing.

Application Pitfalls & Engineering Notes

Although the low-copper aluminum alloy construction offers robust resistance to atmospheric corrosion, care must be taken in highly caustic washdown environments. If used on machinery subjected to strong alkaline cleaning agents, consider applying an external chemical-resistant coating to the cast aluminum body to prevent surface degradation.

Commissioning & Wiring Tips

The pre-installed 0.5-meter coaxial cable should be routed directly into secondary protective conduit using the 3/4-14 NPT ports. To prevent signal interference or mechanical wear on the insulation, ensure the cable is not pinched or bent past its minimum static bend radius during final housing closure.

Installation Guidelines