21000-16-10-00-256-01-02 | Bently Nevada 8 mm Proximity Probe Housing Assembly

Introduction to the 21000-16-10-00-256-01-02

When machine vibration threatens uptime, the 21000-16-10-00-256-01-02 provides a robust solution. This Bently Nevada proximity probe housing assembly is engineered for hazardous environments. It supports a 3300 XL 8 mm probe with a 1.0 m cable. The aluminum body and 304 stainless steel sleeve ensure durability. This model is part of the 21000 series, designed for externally mounted proximity probes.

Key Features and Technical Specs

• Probe Option: 3300 XL 8 mm probe with connector.
• Probe Cable Length: 1.0 m (39 in).
• Probe Penetration (D Dimension): 25.6 in (256).
• Mounting Thread: 3/4-14 NPT.
• Material: Aluminum body with 304 stainless steel sleeve.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.
• Fittings: One explosion-proof fitting and one plug.
• Hazardous Area Approval: CSA certified for Class 1 Divisions 1 and 2 Groups C and D, Class 2 Divisions 1 and 2 Groups E, F, and G, Class III, Enclosure Type 4, T5 @ Ta = -50 °C to +40 °C, T4 @ Ta = -50 °C to +80 °C.

The unique 8 mm probe size allows precise clearance measurements in tight spaces. This spec directly impacts installation flexibility in crowded machinery.

Applications and Use Cases

Industries rely on the 21000-16-10-00-256-01-02 for critical rotating equipment monitoring. It excels in steam turbines, compressors, and pumps. The explosion-proof rating makes it ideal for oil and gas facilities. Additionally, it meets API 670 standards for externally mounted housings. This ensures compliance in petrochemical plants.

Installation and Setup

Mount the housing using the 3/4-14 NPT thread. For probe penetration lengths between 1.0 and 2.0 inches, counter boring the machine case may reduce side view effects. If the combined probe penetration (C plus D) exceeds 300 mm (12 in), add sleeve support near the probe to prevent resonance. The adjustment range of the D dimension is 13 mm (± 0.5 in). Always follow Bently Nevada guidelines for proper alignment.

Maintenance and Reliability

Regularly inspect the O-rings and thread seal for wear. The aluminum and stainless steel construction resists corrosion, extending service life. Periodic checks of the probe cable and connector ensure signal integrity. This proactive approach minimizes unplanned downtime and reduces long-term costs.

Compatibility and Integration

The 21000-16-10-00-256-01-02 integrates with Bently Nevada monitoring systems. It works with 3300 XL series probes and compatible transmitters. The CSA Type 4 enclosure allows use in harsh environments. For intrinsically safe applications, pair it with approved proximity probes.

FAQ about the 21000-16-10-00-256-01-02

What is the probe cable length for this model?

The probe cable length is 1.0 m (39 in).

What mounting thread does the 21000-16-10-00-256-01-02 use?

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

Is this housing assembly certified for hazardous areas?

Yes, it is CSA certified for Class 1 Divisions 1 and 2 Groups C and D, Class 2 Divisions 1 and 2 Groups E, F, and G, Class III, Enclosure Type 4, T5 @ Ta = -50 °C to +40 °C, T4 @ Ta = -50 °C to +80 °C.

What is the typical weight of the 21000-16-10-00-256-01-02?

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

Product Support and Availability

The 21000-16-10-00-256-01-02 is in stock and ready to ship from Petro Auto Tech. We offer factory warranty and new original packaging. Contact our team for lifecycle status and ordering details.