Bently Nevada 21000-34-05-20-050-04-02 Proximity Probe Housing Assembly

Technical Specifications Breakdown

Key parameters for the 21000-34-05-20-050-04-02 are listed below for quick reference:

Industry Applications

The 5.0 in probe penetration accommodates varying machine casing thicknesses, while the 2.0 in standoff adapter ensures proper probe gap setting. The selectable hazardous area approvals make it suitable for use in explosive atmospheres, common in refineries and chemical plants. By providing a sealed, explosion-proof enclosure (CSA rated), it protects sensitive probes from moisture, dust, and physical damage, reducing unplanned downtime and maintenance costs.

Installation and Setup Guidance

When installing the 21000-34-05-20-050-04-02, ensure the mounting surface is clean and flat. Use the 3/4-14 NPT mounting thread to secure the housing. The standoff adapter and probe penetration lengths are factory-set; verify they match your machine's requirements before installation. Connect conduit to the 3/4-14 NPT plug fitting for cable routing. Always follow the manufacturer's guidelines for probe gap setting and cable management to avoid signal interference.

Maintenance and Reliability

Inspect the housing assembly periodically for signs of corrosion or physical damage, especially in harsh environments. Verify that all seals and O-rings remain intact to maintain the CSA Type 4 enclosure rating. The aluminum and stainless steel construction resists corrosion, but regular cleaning of the probe tip and connector is recommended. No internal disassembly is required; simply check external integrity during routine machine inspections.

Robust Protection for Critical Vibration Monitoring

The Bently Nevada 21000-34-05-20-050-04-02 is a precision proximity probe housing assembly designed to safeguard vibration sensors in demanding industrial environments. This assembly integrates a 3300 XL 8 mm probe with connector protector, ensuring reliable measurement of shaft vibration and position in rotating machinery. With a 0.5 m (20 in) probe cable, 2.0 in standoff adapter, and 5.0 in probe penetration, it offers tailored fit for various machine configurations. The aluminum body with 304 stainless steel sleeve provides durability, while the 3/4-14 NPT mounting thread and one 3/4-14 NPT plug fitting simplify installation. This component is essential for predictive maintenance programs in industries like oil and gas, power generation, and petrochemicals.

Compatibility and Integration

This housing is designed for use with Bently Nevada 3300 XL 8 mm proximity probes and compatible monitoring systems. It meets API 670 standards for externally mounted proximity probe housings, ensuring broad compatibility with rotating machinery protection systems. The CSA Type 4 enclosure rating allows outdoor installation. For intrinsically safe applications, pair with approved barriers and probes.

Selection Guide and Purchasing Advice

Choose the 21000-34-05-20-050-04-02 when you need a rugged, certified housing for a 3300 XL 8 mm probe with a 0.5 m cable, 2.0 in standoff, and 5.0 in penetration. Verify your machine's mounting thread (3/4-14 NPT) and clearance for the 13.5 in maximum dimension. For lifecycle status and availability, contact AutoDCSTech. We stock new, factory-sealed units with a 12-month warranty, ready for immediate shipment.