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  • 21000-28-05-00-076-04-02-1
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21000-28-05-00-076-04-02

Proximity Housing Bently Nevada 21000-28-05-00-076-04-02

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  • Manufacturer: Bently Nevada

  • Product No.: 21000-28-05-00-076-04-02

  • Product Type: Housing Assembly

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 1100g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The Bently Nevada 21000-28-05-00-076-04-02 is an API 670 compliant Explosion-Proof Proximity Probe Housing Assembly engineered for deep-access rotating machinery vibration monitoring in extreme environments. Constructed from high-strength aluminum with a 304 stainless steel sleeve, this rugged external housing integrates a 3300 XL 8mm reverse-mount proximity probe with a 0.5m cable and an extended 7.6-inch (193 mm) penetration depth. Weighing approximately 1.1 kg (2.4 lbs), it provides CSA Type 4 weather-proofing and explosion-proof containment for critical turbines, compressors, and petrochemical reactors.

Core Technical Advantages

Extended 7.6" Penetration Reach: Specifically designed for deep-access machine casings, ensuring precise proximity probe positioning in complex machinery setups.

API 670 Compliant Enclosure: Fully certified as a CSA Type 4 housing meeting stringent American Petroleum Institute (API) 670 standards for externally mounted probe assemblies.

Comprehensive Hazardous Area Ratings: Certified by CSA for Class I/II/III explosion-proof operation, supporting extreme operating temperatures from -50°C to +80°C.

Technical Specifications

Parameter Category Specification Details
Manufacturer / Brand Bently Nevada
Complete Part Number 21000-28-05-00-076-04-02
Housing Material Aluminum Body with 304 Stainless Steel Sleeve
Probe Type (-28) 3300 XL 8 mm Proximity Probe (Hazardous-Area Approved)
Probe Cable Length (-05) 0.5 meters (20 inches)
Standoff Adapter (-00) No Standoff Adapter included
Probe Penetration (-076) 7.6 Inches (193 mm)
Fitting Option (-04) One 3/4-14 NPT Plug Fitting
Mounting Thread (-02) 3/4-14 NPT Thread
Operating Temperature -50°C to +80°C (-58°F to +176°F)
Net Base Weight 1.1 kg (2.4 lbs) typical without fittings

Installation and Maintenance

Mounting & Threading: Apply approved thread sealant and thread the 3/4-14 NPT base into the machine casing. Ensure proper torque to maintain explosion-proof sealing.

Conduit & Seal: Secure field cables using the included NPT plug fitting and integrated strain relief. Fully tighten the dome cover to maintain the CSA Type 4 environmental rating.

Engineering Advantages

Standardized API 670 Field Installation

Designed specifically to satisfy API 670 guidelines, this housing assembly provides field engineers with a standardized, robust method for mounting proximity probes on turbines, compressors, and large pumps without custom machining.

Complete Environmental & Explosion Protection

The combination of a heavy-duty aluminum body, threaded dome cover, and sealed conduit fittings protects inner sensing elements against moisture, corrosive atmospheric gases, and extreme ambient industrial shock.

Pre-Configured Modular Components

All core installation hardware—including the internal reverse-mount probe, sleeve, thread seals, and cable strain-relief grips—arrives as a factory-tested assembly, streamlining field setup time.

Technical FAQs

Q1: What is the penetration depth specified by option -076?
A1: Option -076 designates an extended sleeve penetration length of 7.6 inches (193 mm).

Q2: What fitting configuration is supplied with option code -04?
A2: Option -04 includes one 3/4-14 NPT plug fitting for unused conduit connections.

Q3: Is the 21000 housing assembly rated for explosion-proof applications?
A3: Yes. It holds CSA explosion-proof certifications for Class I, II, and III hazardous areas.

Product Resources

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🏷️ Tags: Housing Assembly

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