Bently Nevada 21000-00-00-00-019-03-02 Proximity Probe Housing Assemblies

Product information

To externally mount proximity probes, use one of these all-metal Proximity Probe Housing Assemblies: 21000 aluminum probe housing assembly, 24701 stainless steel probe housing assembly .The 21000, 24701, and 164818 Proximity Probe Housing Assemblies consist of the following parts: A dome cover that screws into the body of the housing; Threaded ports for conduit connections; A probe sleeve of optional length; O-rings; A reverse mount proximity probe；A thread seal; Optional conduit fittings; An optional standoff adapter. 

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Frequently Asked Questions (FAQ)

Q: What is the specification of the bottom main thread used to fix the protective box 21000-00-00-00-019-03-02 to the machine housing?
A: The suffix code "02" indicates that the mechanical main connection thread required to fix the protective box base is a 3/4-14 NPT tapered pipe thread.

Q: How well does the physical shape of the housing 21000-00-00-00-019-03-02 withstand harsh environments under heavy vibration and high salt spray conditions?
A: The protective housing is made of die-cast aluminum (with epoxy powder coating) for the dome cover and base, and the ingress parts are made of stainless steel. The entire unit is explosion-proof certified, and the protection level meets CSA Type 4 standards.

Q: What specifications of lead holes or conduit ports does model 21000-00-00-00-019-03-02 provide?
A: Equipped with two 3/4-14 NPT threaded lead holes is the hardware code "03", commonly used for bidirectional wiring, bridging, or redundant wiring structures in loops.
 
Q: What special mechanical structure does the "00" of the the probe represent?
A: The code "00" indicates that this component does not have a standoff adapter. The metal base of the protective housing will be directly attached to the outer surface of the machine during installation.

Q: When assembling the probe inside this component, how can we ensure that the Viton annular O-ring inside the 21000-00-00-00-019-03-02 performs optimally in preventing oil and gas leakage?
A: By keeping the O-ring surface clean and scratch-free during conduit adjustment and applying silicone-free grease, optimal sealing is achieved; a 1.4 bar (20 psi) hydrostatic barrier is established through uniform compression during locking.

Application

Oil Refineries: Monitors catalytic cracking units, wet gas compressors, and centrifugal compressor systems.

Ethylene Plants: Used in protection systems for cracking gas, propylene, and ethylene compressors.

LNG Plants: Provides continuous monitoring for key refrigeration compressors and high-pressure pumps.

Large Steel Plants: Monitors bearing operation of blast furnace blowers and TRT systems.

Air Separation Plants: Monitors centrifugal air compressors supplying high-pressure gas for steel and chemical industries

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