Should I choose the aluminum (21000) or stainless steel (24701) housing?

Your choice depends on the operating environment. The aluminum 21000 housing is suitable for general purposes. For corrosive environments, such as chemical plants or marine locations, the 303 stainless steel construction of the 24701 housing provides the necessary corrosion resistance.

Can these housings be used in hazardous locations?

Yes. The 21000, 24701, and 164818 assemblies are available with CSA certification and are rated as explosion-proof products for use in hazardous areas. They can also be ordered with intrinsically safe probes to meet specific site safety requirements.

Why is extra support needed for probe sleeves longer than 304 mm (12 inches)?

A long, unsupported sleeve can be affected by machine vibration, potentially causing it to swing or resonate, which affects the stability of the probe tip. Adding a support device prevents this movement and ensures the probe maintains a consistent gap to obtain accurate readings.

What are the primary differences between the 24701 and 164818 housing models?

The 24701 model is a standard-sized assembly constructed with a 303 stainless steel body for superior durability and corrosion resistance in challenging environments. In contrast, the 164818 model is a

What safety standards and enclosure ratings do these probe housings meet?

All three models (21000, 24701, and 164818) are fully compliant with the API 670 standard for externally mounted proximity probe housings. Additionally, they are certified as CSA Type 4 enclosures and are available with hazardous area certifications, making them suitable for explosion-proof applications when configured correctly.

What happens if the 3300 XL or NSv probes are exposed to temperatures below -34°C (-30°F)?

Operating these probes below -34°C (-30°F) poses a significant technical risk. Such extreme cold can lead to the premature failure of the probe's pressure seals. Once the seal integrity is compromised, the probe may fail or provide inaccurate data, potentially leading to equipment downtime.

What components are typically included in a complete housing assembly?

A standard assembly is comprehensive and includes a screw-in dome cover, a threaded port for conduit connections, an O-ring, and a reverse-mount proximity probe equipped with thread seals. It also features a probe sleeve of optional length, with additional accessories like standoff adapters and conduit fittings available depending on the specific application needs.

21000, 24701, and 164818 ProbeHousing Assemblies|We have our own in-house inventory and also work as a distributor with a large number of suppliers to bring you the best solution for your needs. If we don't have what you need, we can often find it for you."

Bently Nevada 21000, 24701, and 164818 ProbeHousing Assemblies

Search our inventory for your 21000, 24701, and 164818 ProbeHousing Assemblies part numbers. Select your 21000, 24701, and 164818 ProbeHousing Assemblies part number to view our live inventory levels and best price. If we don't have what you need in stock, please contact us and we may be able to find for you.If the item you need is not in stock, please contact us and we can provide you with a better solution.

Even though many 21000, 24701, and 164818 ProbeHousing Assemblies models are discontinued, we continue to support multiple generations of 21000, 24701, and 164818 ProbeHousing Assemblies systems.

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21000, 24701, and 164818 ProbeHousing Assemblies: 3300 System

3500 System

330400 and 330425 Accelerometer

3300 XL 8mm Proximity Transducer

3300 XL NSV Proximity Transducer

190501 Velomitor CT Transducer

200150, 200155 and 200157 Accelerometers

990 and 991 Transmitter

31000 and 32000 Proximity Probe Housing Assemblie

21000, 24701, and 164818 ProbeHousing Assemblies

3300 XL 11mm Proximity Transducer

330500 and 330525 Piezo-Velocity Sensor

7200 Proximity Transducer Systems

IEPE Accelerometer Series

170180 FieldMonitor External Transducer I/O Module

330525 Series

330750 and 330752 High Temperature Velomitor

1900 Vibration Monitor

3701 Machinery Dynamics Monitor

24765 and 135613 Case Expansion

1701 FieldMonitor Proximitor Input Monitor

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9200 and 74712 Seismoprobe Velocity Transducers

3300 XL Proximity Transducer

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177230 Seismic Transmitter

1900/65 General Purpose Equipment Monitor

TK-3 Proximity System

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3300 Ceramic Capped Probe

Select

Bently Nevada 21000, 24701, & 164818 Probe Housings

At Amikong, we specialize in supplying industry-leading components for the manufacturing sector. Our core business is providing access to a vast inventory of discontinued and essential automation parts to maintain your production schedules and reduce downtime. We offer the Bently Nevada 21000, 24701, and 164818 proximity probe housing assemblies, which are components designed for the external mounting and protection of proximity probes in demanding industrial environments. We are committed to providing these high-quality parts with the support of our professional sales and after-sales teams.

Core Function and Model Specifications for Application Matching

Proximity probe housing assemblies provide a secure enclosure for externally mounted probes, shielding them from harsh industrial conditions. The Bently Nevada product line offers different models to meet specific operational needs. Your choice will depend on environmental factors and spatial constraints.

21000 Probe Housing Assembly: This model features an aluminum body and a 304 stainless steel sleeve. With a typical weight of 1.1 kg (2.4 lb), it is a lightweight yet durable option for general-purpose applications where corrosion is not a primary concern.

24701 Probe Housing Assembly: This assembly uses a 303 stainless steel body and a 304 stainless steel sleeve, designed to provide superior durability in corrosive environments. Its typical weight is 1.8 kg (4.1 lb), and its robust construction is sufficient to handle various challenging conditions.

164818 Compact Probe Housing: This housing is specifically designed for applications where installation space is extremely limited. Its compact form factor allows for the secure installation of probes in tight locations without compromising protection.

Each assembly includes a screw-in dome cover, a threaded port for conduit connection, an optional-length probe sleeve, an O-ring, and a reverse-mount proximity probe with thread seals. Optional conduit fittings and standoff adapters are also available.

Hazardous Area Certifications and Stringent Safety Compliance

Operational safety is paramount, especially in environments with a risk of explosion. The 21000, 24701, and 164818 assemblies are available with certifications for use in hazardous locations, ensuring they meet strict safety protocols. These housings are certified as CSA Type 4 enclosures and are fully compliant with the API 670 standard for externally mounted proximity probe housings.

Probe Compatibility and Specified Operating Temperatures

These housing assemblies are compatible with several high-performance Bently Nevada probes. To ensure measurement accuracy and component longevity, it is crucial to operate within the specified temperature ranges.

3300 XL 8 mm and 11 mm Probes: The operating and storage temperature range for these probes is -51°C to +177°C (-60°F to +351°F).

3300 NSv Probes: The operating temperature range for this probe is -34°C to +177°C (-30°F to +351°F), with a storage temperature range of -51°C to +177°C (-60°F to +351°F).

A critical warning: Exposing 3300 XL or 3300 NSv probes to temperatures below -34°C (-30°F) may lead to premature failure of their pressure seals, thereby compromising the probe's integrity.

FAQs

Should I choose the aluminum (21000) or stainless steel (24701) housing?
+

Your choice depends on the operating environment. The aluminum 21000 housing is suitable for general purposes. For corrosive environments, such as chemical plants or marine locations, the 303 stainless steel construction of the 24701 housing provides the necessary corrosion resistance.
Can these housings be used in hazardous locations?
+

Yes. The 21000, 24701, and 164818 assemblies are available with CSA certification and are rated as explosion-proof products for use in hazardous areas. They can also be ordered with intrinsically safe probes to meet specific site safety requirements.
Why is extra support needed for probe sleeves longer than 304 mm (12 inches)?
+

A long, unsupported sleeve can be affected by machine vibration, potentially causing it to swing or resonate, which affects the stability of the probe tip. Adding a support device prevents this movement and ensures the probe maintains a consistent gap to obtain accurate readings.
What are the primary differences between the 24701 and 164818 housing models?
+

The 24701 model is a standard-sized assembly constructed with a 303 stainless steel body for superior durability and corrosion resistance in challenging environments. In contrast, the 164818 model is a
What safety standards and enclosure ratings do these probe housings meet?
+

All three models (21000, 24701, and 164818) are fully compliant with the API 670 standard for externally mounted proximity probe housings. Additionally, they are certified as CSA Type 4 enclosures and are available with hazardous area certifications, making them suitable for explosion-proof applications when configured correctly.
What happens if the 3300 XL or NSv probes are exposed to temperatures below -34°C (-30°F)?
+

Operating these probes below -34°C (-30°F) poses a significant technical risk. Such extreme cold can lead to the premature failure of the probe's pressure seals. Once the seal integrity is compromised, the probe may fail or provide inaccurate data, potentially leading to equipment downtime.
What components are typically included in a complete housing assembly?
+

A standard assembly is comprehensive and includes a screw-in dome cover, a threaded port for conduit connections, an O-ring, and a reverse-mount proximity probe equipped with thread seals. It also features a probe sleeve of optional length, with additional accessories like standoff adapters and conduit fittings available depending on the specific application needs.