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Bently Nevada 31000-00-00-15-047-01-02
Bently Nevada 31000-00-00-15-047-01-02
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Proximity Probe Housing Assemblies

31000-00-00-15-047-01-02

Spare Part Number

PN31000-00-00-15-047-01-02

Product Information:

The 31000-00-00-15-047-01-02 is an industrial-grade external eddy current probe housing assembly in the Bently Nevada 31000 series. As a core protective component for modern rotating machinery condition monitoring, it is designed for external installation on high-value equipment such as steam turbines, compressors, large fans, and pump sets, providing a highly flexible physical seal barrier for internal non-contact displacement sensor probes.

The innovative design of the 31000-00-00-15-047-01-02 allows maintenance personnel to adjust the internal probe's measurement gap or replace the probe directly from outside the machine without disassembling the bearing housing or stopping the machine, significantly improving plant operation and maintenance efficiency. Unlike the traditional metal 21000 series, this assembly uses Baker Hughes DAM+3 core material and custom parameters.

The 31000-00-00-15-047-01-02 type protective cover is constructed from advanced polyphenylene sulfide (PPS) high-strength conductive fiber thermoplastic material, while the internal sleeve and exposed screws are made of 304/303 stainless steel, offering excellent mechanical impact resistance and resistance to industrial chemical corrosion.

Product image is representative; revision or series may vary. Contact us to request a specific version.
  • One-year warranty
  • Global shipping
  • Exact-model verification
Technical specifications for

31000-00-00-15-047-01-02

0 TECHNICAL PARAMETERS
  • Manufacturer:
    Bently Nevada
  • Product Category:
    Sensor
  • Spare Part Number:
    31000-00-00-15-047-01-02
  • Estimated shipping dimensions:
    15.2 x 20 x 14.8 cm
  • Weight:
    0.3 kg
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
  • Product Type:
    Proximity Probe Housing Assemblies
  • Category Series:
    31000 series
  • Probe with Connector:
    Probe not required
  • Probe Cable Length:
    Probe cable not required
  • Standoff Adapter Length:
    1.5 in (38 mm)
  • Probe Penetration:
    4.7 in (119.38 mm)
  • Fittings:
    One 3/4-14 NPT fitting, two plugs
  • Mounting Thread:
    3/4-14 NPT (Required if ordering Standoff Adapter Option)
  • Operating temperature:
    -34°C to +177°C (-30°F to + 351°F)
  • O-Ring Material:
    Neoprene
  • Recommended Torque(retaining nut):
    29.4 N·m (260 in·lb)
  • Housing Material:
    Glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic containing conductive fibers
  • Storage temperature:
    -51°C to +177°C (-60°F to +351°F)
  • Series:
    3300 System
  • Stock:
    100
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  • 01

    Factory Sealed

    Unused product with the original factory seal intact; packaging age or storage marks may still be present.

  • 02

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  • 03

    Factory New

    New and current product sourced through the manufacturer or authorized supply channel when expressly confirmed in the quotation.

Alternative Names

310000000150470102 31000 00 00 15 047 01 02 3I000-00-00-I5-047-0I-02 31OOO-OO-OO-15-O47-O1-O2 31000-00-00-15-047-01-00 31000-00-00-15-047-01-05 31000-00-00-15-047-01-CN 31000-00-00-15-047-01-BR 31000-00-00-15-047-01-RU 31000-00-00-15-047-01-US 31OOO-OO-OO-15-O47-O1-OO 31OOO-OO-OO-15-O47-O1-O5 3I000-00-00-I5-047-0I-CN

Information

Overview Manuals Basic Info Ordering Information for Probes Application Scenarios

Features:

  • Proximity Probe Housing Assemblies
  • 31000 and 32000 Proximity Probe Housing Assemblies
  • The 31000/32000 Proximity Probe Housing Assembly is made of polyphenylene sulfide (PPS)
When proximity probes need to be mounted inside a machine housing, the 31000/32000 type proximity probe housing assembly is recommended. This assembly is typically used for radially mounted sensors, whether for vibration or key phase measurements. Using a proximity probe housing allows for easy external access to the proximity probe and its extension cables, enabling gap adjustment or probe replacement without disassembling the machine.

The 31000/32000 type proximity probe housing assembly is made of polyphenylene sulfide (PPS), an advanced high-strength thermoplastic material with excellent corrosion resistance. Other components of the housing assembly are made of corrosion-resistant stainless steel. Versions of this housing assembly pre-installed with the 3300 XL type proximity probe and various conduit fittings are available by order.

The 31000-00-00-15-047-01-02 Bently Nevada Proximity Probe Housing Assemblies may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 31000-00-00-15-047-01-02 Proximity Probe Housing Assemblies Manuals(Datasheets), Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Model: 31000-00-00-15-047-01-02
  • Warranty: One-year warranty
  • Condition: Brand new, original, in stock
  • Product Family: 31000 and 32000 Proximity Probe Housing Assemblies
English Proximity Probe Housing Assemblies
31000 - Axx-Bxx-Cxx-Dxxx-Exx-Fxx

A: Probe with Connector
00: Probe not required
16: 3300 XL 8 mm probe
26: 3300 XL NSv probe
27: 3300 XL NSv probe, multiple approvals
28: 3300 XL 8 mm probe, multiple approvals
29: 3300 XL 8 mm probe, with connector protector
30: 3300 XL 8 mm probe, with connector protector, multiple approvals
31: 3300 XL NSv probe with connector protector
32: 3300 XL NSv probe with connector protector, multiple approvals
33: 3300 XL 11 mm probe
34: 3300 XL 11 mm probe, multiple approvals
35: 3300 XL 11 mm probe with connector protector
36: 3300 XL 11 mm probe with connector protector, multiple approvals
 
B: Probe Cable Length
00: Probe cable not required (Option A must also be 00)
05: 0.5 m (20 in)
10: 1.0 m (39 in)
 
C: Standoff Adapter Length (Option C Dimension)
15: Minimum length 1.5 in (38 mm)
75: Maximum length 7.5 in (191 mm)
Recommendation
Order in increments of 0.5 in (13 mm)
Examples
1.5 in (38 mm) = 15
No standoff adapter = 00
 
D: Probe Penetration Option (Option D Dimension)
10: Minimum length 1.0 in (25.4 mm)
Recommendation
Order in increments of 0.1 in (3 mm)
Examples
No probe sleeve = 000
3.7 in (94 mm) = 037
22.4 in (569 mm) = 224
 
E: Fittings
00: Without fittings
01: One 3/4-14 NPT fitting, two plugs.
02: Two 3/4-14 NPT fittings, one plug
03:
Two plugs, one 3/4-14 NPT fitting
One 3/4-14 to 1/2-14 NPT SST reducer
One cable seal grip with grommets for
the following cable sizes:
• 1/8 to 3/16 inches
• 1/4 to 5/16 inches
• 5/16 to 3/8 inches
06:  
One 3/4-14 NPT fitting
One 3/4-14 NPT to 1/2-14 NPR SST
reducer
Two plugs
 
F: Mounting Thread
00: No outer sleeve, retainer, or retaining nut
02: 3/4-14 NPT (Required if ordering Standoff Adapter Option).
05: 7/8-14 UNF 2A
In asset protection and predictive maintenance architectures within large industrial plants, this protective enclosure, when properly assembled in the field and secured to the probe, provides robust environmental protection for sensitive internal sensing components. While not an explosion-proof hard enclosure, it can be safely deployed in intrinsically safe hazardous areas when used with certified sensor systems and intrinsically safe barriers. Its overall design fully complies with American Petroleum Institute (API) 670 standards. The signal cable securely led from the enclosure ultimately connects to a preamplifier and integrates with the Bently Nevada 3500 mechanical protection system, widely used in industries such as power, petrochemicals, and heavy metallurgy, ensuring absolute stability and data accuracy of underlying physical monitoring signals in high-temperature, high-vibration, and high-humidity environments. 

Technical notes

The 31000-00-00-15-047-01-02 is the proximity probe housing assembly for Bently Nevada's 31000 series external eddy current probes. Its body is made of non-metallic glass fiber reinforced polyphenylene sulfide (PPS) conductive thermoplastic (with a matching 304 stainless steel sleeve). The overall design conforms to API 670 standards and has NEMA 4X and IP66 industrial dust and water resistance ratings. Furthermore, it is CENELEC certified for electrostatic dissipation, exhibiting excellent shock and corrosion resistance in harsh environments ranging from -51°C to +105°C. The core technical feature of this model lies in its flexible and customizable "explosion-proof housing" configuration, which does not include probe hardware: the probe option does not include the eddy current probe (-00) and probe cable (-00), but comes with a 1.5-inch high base extension adapter (-15) to avoid external obstruction from the machine housing; a stainless steel sleeve provides a 4.7-inch probe penetration depth (-047); electrical interface accessories include a 3/4-14 NPT connector and two plugs (-01). The entire assembly is secured to the machine via a 3/4-14 NPT thread (-02) on the bottom, providing lightweight yet robust physical and electrical sealing protection for field-customized reverse-mounted eddy current probes (such as the 3300 XL 8mm).
PRODUCT & ORDER FAQS

Questions buyers ask about 31000-00-00-15-047-01-02

  • What are the characteristics of the 31000-00-00-15-047-01-02 cable's length specifications?

    The 31000-00-00-15-047-01-02 comes with a 4.7-meter (approximately 15-foot) extension cable, providing the electrical length needed for sensor calibration and offering flexible installation options for industrial machinery monitoring applications.
  • How does the 31000-00-00-15-047-01-02 maintain metrological accuracy throughout the sensor system?

    The 31000-00-00-15-047-01-02 is manufactured with precisely controlled impedance, a low-capacitance coaxial structure, and factory-matched electrical characteristics. These design features ensure excellent signal linearity, minimal attenuation, and consistent calibration performance for the eddy current sensor assembly.
  • Why is the 4.7-meter cable length of the 31000-00-00-15-047-01-02 critical for system calibration?

    The 31000-00-00-15-047-01-02 comes pre-installed with a 4.7-meter cable to maintain the calibration impedance and frequency response required for compatibility with eddy current proximity monitoring systems. Using the specified cable length ensures optimal measurement accuracy and system stability.
  • How does the 31000-00-00-15-047-01-02 maintain high-frequency signal integrity?

    The 31000-00-00-15-047-01-02 employs low-capacitance coaxial cable technology, precision shielding, and optimized characteristic impedance to minimize electromagnetic interference (EMI), radio frequency interference (RFI), signal loss, and phase distortion during high-frequency signal transmission.
  • In which industrial machinery is the 31000-00-00-15-047-01-02 typically used?

    The 31000-00-00-15-047-01-02 is widely used in steam turbines, gas turbines, centrifugal compressors, generators, electric motors, pumps, industrial fans, gearboxes, and other critical rotating machinery. In these applications, accurate eddy current sensor performance is crucial for equipment protection.
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  • Product Lifecycle Stage

    Obsolete/Discontinued by OEM

    The recommended upgrade is the Bently Nevada 330500 Velomitor® piezoelectric velocity sensor, which offers superior measurement performance, enhanced reliability, and longer-term manufacturer support. Moore Automated offers high-quality Bently Nevada replacement modules and spare parts, including the 330500 Velomitor® piezoelectric velocity sensor, compatible with older vibration monitoring systems. Our reliable solutions help minimize unplanned downtime, extend equipment life, and ensure the continuous operation of critical rotating machinery.
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Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.

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