24701-28-10-00-090-00-02 | Bently Nevada 8mm Probe Housing Assembly

Introduction to the Bently Nevada 24701-28-10-00-090-00-02

When a rotating machine's vibration threatens uptime, the 24701-28-10-00-090-00-02 provides a robust housing for precise proximity sensing. This Bently Nevada assembly is engineered for 3300 XL 8mm proximity probes, offering reliable protection in demanding industrial environments. Its 303 stainless steel body and 304 stainless steel sleeve resist corrosion and mechanical wear, ensuring long-term performance.

This housing assembly is part of the 24701 series, designed specifically for use with reverse mount proximity probes. It includes a dome cover, threaded conduit ports, an optional probe sleeve, O-rings, and a thread seal. The assembly is supplied new in original factory packing, backed by a 12-month warranty.

Key Features and Technical Specifications

The 24701-28-10-00-090-00-02 offers a precise configuration for 8mm proximity probes. Below are the key specifications:

• Probe Option: 3300 XL 8mm with approval option
• Probe Cable Length: 39 inches (1.0 meter)
• Probe Penetration: 9 inches
• Mounting Thread: 3/4-14 NPT
• Standoff Adapter: None
• Fittings: None
• Material: 303 stainless steel body, 304 stainless steel sleeve
• Weight: 1.8 kg (4.1 lb) typical without fittings
• Maximum (C) + (D) with visible probe: 17.0 in (43.18 mm)
• Maximum (C) + (D) Dimension: 29.2 in (74.2 mm)

These specifications ensure a secure fit for 3300 XL 8mm probes, maintaining accurate gap measurements in critical machinery. The 3/4-14 NPT mounting thread simplifies installation into standard ports.

Applications and Use Cases

This housing assembly is ideal for turbomachinery, pumps, compressors, and other rotating equipment where vibration monitoring is essential. For example, in a steam turbine train, the 24701-28-10-00-090-00-02 protects the proximity probe that measures shaft vibration, enabling early detection of imbalance or misalignment. Its stainless steel construction withstands harsh process environments, making it suitable for refineries, power plants, and chemical facilities.

Additionally, the 1-meter cable length accommodates typical installation distances, while the 9-inch penetration allows proper probe positioning. The absence of fittings and standoff adapter simplifies ordering, yet the housing remains versatile enough for retrofits or new installations.

Installation and Setup Guidance

Proper installation is critical for accurate vibration monitoring. First, verify the mounting thread (3/4-14 NPT) matches the machine port. Then, insert the probe through the housing sleeve, ensuring the probe tip extends to the correct gap per the manufacturer's manual. Tighten the dome cover securely to maintain environmental sealing. Finally, route the cable through the conduit port, avoiding sharp bends that could damage the cable.

For reverse mount probes, confirm the probe's orientation aligns with the shaft target. Use the visible probe mark (P/N and S/N) to verify correct insertion depth. If fittings are required, they can be added separately, but this model ships without them.

Maintenance and Reliability

Routine inspection of the housing assembly ensures consistent performance. Periodically check for corrosion, loose fittings, or damage to the dome cover and sleeve. Verify that the O-rings remain intact to prevent moisture ingress. Clean the exterior with a dry cloth; avoid solvents that could damage seals.

Because the housing is stainless steel, it resists rust and chemical attack, reducing maintenance frequency. This reliability translates into lower lifecycle costs and minimized downtime, as the probe remains protected in harsh conditions.

Compatibility and Integration

The 24701-28-10-00-090-00-02 is designed for Bently Nevada 3300 XL 8mm proximity probes. It integrates seamlessly with Bently Nevada monitoring systems, such as 3500 series racks, which accept the probe's signal. The 1-meter cable length matches standard extension cable requirements, ensuring straightforward connection to proximitor units.

For new installations, verify that the probe's connector type matches the extension cable. This housing assembly does not include a standoff adapter, so if one is needed, it must be ordered separately.

Common Questions About the 24701-28-10-00-090-00-02

Q: What is the mounting thread size?

A: The mounting thread is 3/4-14 NPT, a standard industrial thread for probe housings.

Q: Does this assembly include a standoff adapter?

A: No, the standoff adapter option is 00, meaning it is not included. You can order one separately if needed.

Q: What is the probe cable length?

A: The probe cable length is 39 inches (1.0 meter).

Q: What is the probe penetration depth?

A: The probe penetration is 9 inches, allowing proper positioning within the machine.

Q: Is this housing suitable for 3300 XL 8mm probes?

A: Yes, it is specifically designed for 3300 XL 8mm proximity probes with an approval option.

Product Support and Availability

The 24701-28-10-00-090-00-02 is available from Petro Auto Tech, an industrial automation parts supplier. It is in stock and ready to ship, packaged in original factory packing. For ordering assistance or technical questions, contact Petro Auto Tech directly.