Bently Nevada 21000-16-10-00-244-04-02 Proximity Probe Housing Assemblies

Description

The 21000-16-10-00-244-04-02 is a robust, all-metal aluminum proximity probe housing assembly designed for the external mounting of 3300 XL 8 mm proximity probes. This configuration includes a 1.0 m (39 in) probe cable, no standoff adapter, a specific 244 probe penetration length, and a 3/4-14 NPT plug fitting with a 3/4-14 NPT mounting thread. The housing is engineered to provide a secure, protective environment for the probe and its cable connections in industrial machinery monitoring applications. The 21000 series housings, including this assembly, are fully compliant with the American Petroleum Institute (API) 670 Standard for externally mounted proximity probe housings. Constructed from an aluminum body with a 304 stainless steel sleeve, this assembly ensures mechanical durability and protects the sensor components from environmental conditions. It is frequently used in power generation, oil and gas, and petrochemical sectors to maintain precise shaft vibration and axial position measurements on rotating machinery.

Features

• Probe Series: 3300 XL 8 mm proximity probe
• Cable Length: 1.0 m (39 in)
• Standoff Adapter: None (Option 00)
• Fittings: One 3/4-14 NPT plug only
• Mounting Thread: 3/4-14 NPT
• Material: Aluminum housing with 304 stainless steel sleeve
• Construction: Compliant with API 670 standard for external probe housings
• Environmental Protection: Type 4 enclosure rating

Applications

• Shaft vibration and axial position monitoring
• External mounting of eddy-current proximity probes
• Rotating machinery in power generation facilities
• Critical equipment protection in oil and gas and petrochemical plants

Ordering Information

Option	Code	Description
Orderable Part Number	21000-16-10-00-244-04-02	21000 Proximity Probe Housing Assembly
A - Probe	16	3300 XL 8 mm probe
B - Probe Cable Length	10	1.0 m (39 in)
C - Standoff Adapter	00	No standoff adapter
D - Probe Penetration	244	Probe penetration length (24.4 in reference)
E - Fittings	04	One 3/4-14 NPT plug only
F - Mounting Thread	02	3/4-14 NPT

Technical Specifications

Parameter	Specification
Manufacturer	Bently Nevada
Part Number	21000-16-10-00-244-04-02
Material	Aluminum body, 304 stainless steel sleeve
Weight	1.1 kg (2.4 lb) typical (without fittings)
Probe Compatibility	3300 XL 8 mm
Mounting Thread	3/4-14 NPT
Compliance	API 670, RoHS
Enclosure Rating	Type 4

Installation Guidelines

• Ensure the housing is securely mounted using the 3/4-14 NPT thread to maintain structural integrity.
• When installing, verify that the probe penetration length (Option D) is compatible with the target machine case to prevent excessive probe side-view interference.
• Use the included 3/4-14 NPT plug for unused conduit ports to maintain the integrity of the enclosure.
• Avoid subjecting the 3300 XL probe to temperatures below -34 degC (-30 degF) to prevent failure of the pressure seals.
• Ensure proper grounding and shielding of the probe signal cable in accordance with site-specific instrumentation practices.