21000-34-10-00-096-04-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the Bently Nevada 21000-34-10-00-096-04-02

When reliable vibration monitoring in hazardous environments is critical, the 21000-34-10-00-096-04-02 from Bently Nevada delivers robust performance. This proximity probe housing assembly is designed for externally mounted probes in industrial machinery protection systems. It combines a durable aluminum body with a 304 stainless steel sleeve, ensuring long-term durability in harsh conditions.

As part of the 21000 series, this assembly supports the 3300 XL 8 mm probe with connector protector, offering selectable hazardous area approvals. The unit weighs 1.1 kg (2.4 lb) typical without fittings, making it manageable for field installation.

Key Features and Technical Specifications of the 21000-34-10-00-096-04-02

The 21000-34-10-00-096-04-02 includes several engineered features for reliable operation:

• Probe option: 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals.
• Probe cable length: 1.0 m (39 in) for flexible placement.
• Probe penetration: 9.6 in (096 suffix) for precise positioning.
• Fitting: One 3/4-14 NPT plug only (fitting option 04).
• Mounting thread: 3/4-14 NPT (suffix -02).
• Maximum (C) + (D) dimension with visible probe P/N and S/N: 17.0 in (43.18 cm).
• Maximum (C) + (D) dimension overall: 32.9 in (83.5 cm).
• Weight: 1.1 kg (2.4 lb) typical, without fittings.

A distinctive spec is the 9.6 in probe penetration, which allows the probe to reach deep into the housing for accurate clearance measurements. This depth is critical for maintaining consistent gap settings in rotating machinery.

Applications and Use Cases for the 21000-34-10-00-096-04-02

This housing assembly is ideal for vibration monitoring in turbines, compressors, pumps, and other rotating equipment. It is fully compliant with the American Petroleum Institute's API 670 Standard for externally mounted proximity probe housings. For example, in a steam turbine installation, the 21000-34-10-00-096-04-02 provides a secure, explosion-proof enclosure for the proximity probe, enabling continuous shaft vibration measurement without compromising safety.

Additionally, the CSA Type 4 enclosure rating ensures protection against water ingress and dust, making it suitable for outdoor or washdown environments.

Installation and Setup Guidance

Mount the housing using the 3/4-14 NPT thread option, which aligns with standard conduit fittings. Ensure the probe penetration depth of 9.6 in is set correctly during installation to achieve the proper gap voltage. The assembly includes a dome cover, threaded ports, probe sleeve, O-rings, and a thread seal. When mounting, verify that the standoff adapter is not required (suffix 00) unless specified otherwise. Always follow Bently Nevada's manual for torque specifications and wiring.

Maintenance and Reliability Tips

Regularly inspect the O-rings and thread seal for wear to maintain the explosion-proof integrity. Check the probe cable for any signs of abrasion or damage. The aluminum body with stainless steel sleeve resists corrosion, but periodic cleaning with a dry cloth is recommended. For long-term reliability, verify that the housing remains properly sealed after any maintenance.

Compatibility and Integration

The 21000-34-10-00-096-04-02 is designed for use with Bently Nevada monitoring systems that accept 8 mm proximity probes. It integrates seamlessly with the 3300 XL series probes and compatible rack-based monitors. The CSA explosion-proof rating allows installation in Class I, Division 1 hazardous areas when ordered with appropriate options.

Common Questions About the 21000-34-10-00-096-04-02

Q: What is the maximum cable length for this housing assembly?

A: The probe cable length is 1.0 m (39 in) as specified by suffix 10.

Q: Is this housing assembly suitable for hazardous area use?

A: Yes, it is available with CSA explosion-proof approvals for hazardous areas when ordered with the correct options.

Q: What is the weight of the 21000-34-10-00-096-04-02?

A: The typical weight is 1.1 kg (2.4 lb) without fittings.

Q: Does this assembly include a standoff adapter?

A: No, the suffix 00 indicates no standoff adapter is included.

Q: What mounting thread does the assembly use?

A: It uses a 3/4-14 NPT thread (suffix -02).

Product Support and Availability

The Bently Nevada 21000-34-10-00-096-04-02 is available as new and original in factory packing from Petro Auto Tech. It comes with a 12-month factory warranty. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.