21000-00-00-00-250-03-02 Proximity Probe Housing Assemblies

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	21000-00-00-00-250-03-02
Minimum Order Quantity:	1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 21000-00-00-00-250-03-02 Proximity Probe Housing Assembly is a precision-engineered solution for externally mounting proximity probes in industrial automation and rotating machinery monitoring systems. Designed with a 25.0 in (635 mm) probe penetration, this housing provides extended reach for applications where the sensor must pass through thick machine casings or long sleeves. Constructed with a durable aluminum body and 304 stainless steel sleeve, the assembly delivers mechanical strength, corrosion resistance, and reliable environmental protection. Standard fittings include a 3/4-14 NPT plug, 3/4-14 to 1/2-14 NPT reducer, and cable seal grips for multiple cable diameters (1/8 to 3/8 in), supporting flexible field wiring. The housing is CSA-certified for hazardous areas and rated Type 4, fully compliant with API 670 standards for externally mounted proximity probe housings. Its modular design allows for optional sleeve supports, dome covers, O-rings, and conduit fittings, making it suitable for installations in constrained spaces or for long sleeves exceeding 304 mm (12 in) without introducing vibration or measurement error. This assembly ensures safe, precise, and repeatable probe positioning for high-performance condition monitoring in critical industrial equipment.

Applications

Extended Sleeve Installations
Used for machines requiring a 25.0 in probe penetration, such as large turbines, compressors, or pumps, enabling accurate monitoring of internal components.

Hazardous Area Deployment
CSA-certified and explosion-proof, allowing safe operation in Class I Division 1 and Zone 0/1 environments, protecting personnel and equipment.

API 670-Compliant Monitoring Systems
Supports integration into API 670 standard machinery, ensuring compliance and reliable performance for industrial proximity measurements.

Customizable Sleeve Support
Optional supports allow installation through long sleeves exceeding 12 in, minimizing vibration and preserving linearity for high-accuracy measurements.

Compact or Constrained Spaces
Compatible with 164818 Compact Proximity Probe Housing for space-limited applications, maintaining measurement accuracy and environmental protection.

Specifications

Competitive Advantage

Extended Probe Reach
The 25.0 in penetration supports deep installations where standard-length housings are insufficient, enabling monitoring of larger or more complex machinery.

Durable Construction
Aluminum body with 304 stainless steel sleeve ensures mechanical integrity, corrosion resistance, and long-term durability in harsh industrial environments.

Certified for Hazardous Areas
CSA-certified, explosion-proof housing allows installation in hazardous areas while maintaining safe and reliable operation.

API 670 Compliance
Meets API 670 standards for externally mounted probe housings, guaranteeing trusted performance for critical rotating equipment monitoring.

Modular and Flexible Design
Supports optional dome covers, O-rings, conduit fittings, and custom sleeve supports, enabling precise, repeatable installations in a variety of industrial configurations.