Eaton Crouse-Hinds EYDX21 Expanded Fill Sealing Fitting - Class I/II Hazardous Locations
Part Number: EYDX21
Quick Summary
EYDX21 expands sealing fittings protect conduits in hazardous locations, ensuring safe, reliable wiring in industrial facilities. Manufacturers and installers struggle to maintain drainage and explosion-proof integrity in hazardous areas while meeting tight project schedules. It meets NEC/CEC standards with Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III ratings, plus Hazardous/Classified Locations area classification. This combination supports safer, compliant installations in oil, gas, and chemical plants. For engineers and procurement teams, EYDX21 offers reliable drainage, vertical sealing, and easy retrofitāreducing field rework and total cost. Its Feraloy iron alloy construction resists corrosion, while vertical-only sealing simplifies mounting in constrained spaces.
Product Information
Extended Description
EYDX21 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYDX expanded fill sealing fitting with drain, Female, Feraloy iron alloy, Vertical only, Group B rated, 3/4"
Product Name
Eaton Crouse-Hinds series EYDX expanded fill sealing fitting with drain
Catalog Number
EYDX21
Product Length/Depth
2.19 in
Product Height
4.31 in
Product Width
2.19 in
Product Weight
2.7 lb
UPC
782274942995
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III
Gender
Female
Trade size
3/4"
Sealing position
Vertical only
Material
Feraloy iron alloy
Special features
Group B rated
Crouse-Hinds series EYDX Expanded Fill Explosionproof Conduit Sealing Fittings w/ Drain catalog page
EYDX Expanded Fill Explosionproof Conduit Sealing Fittings with Drain Canadian certification
EYDX Expanded Fill Explosionproof Conduit Sealing Fittings with Drain Canadian certification
IF 288 - EYSX and EYDX Expanded Sealing Fitting
Eaton Specification Sheet - EYDX21
Feature: Expanded Fill Sealing Fitting with Drain. Business Impact: Minimizes ingress of liquids and dust while providing a reliable drain path, reducing field maintenance calls and unplanned downtime in explosion-proof applications. Application: Ideal for vertical conduit runs in hazardous locations where condensate control and seal integrity are critical, such as chemical processing and refining plants. This design supports the long-tail needs of explosionproof conduit sealing fittings with drain and hazardous location fittings. Feature: Feraloy iron alloy body. Business Impact: Delivers excellent mechanical strength and corrosion resistance, lowering maintenance costs and extending service life in harsh environments. Application: Suitable for oil, gas, and chemical facilities where aggressive atmospheres prevail. This aligns with industry expectations for durable, Group B rated components. Feature: Certifications and compliance. Business Impact: Ensures regulatory alignment with NEC/CEC requirements and hazardous location ratings, simplifying approval during audits and commissioning. Application: Enables safe deployment in Class I Division 1/2, Class II Division 1/2, and Class III environments across plants and refineries. Feature: Vertical sealing position. Business Impact: Reduces installation time and orientation errors, improving field productivity and consistency. Application: Particularly beneficial for vertical conduit runs in crowded panels or wall-mounted terminations where space is restricted. Feature: 3/4" trade size and compatibility. Business Impact: Standard size facilitates quick swaps, stock efficiency, and compatibility with existing conduit systems, cutting procurement complexity. Application: Retrofit projects and new builds alike benefit from predictable fit and faster commissioning. Feature: Documentation and support. Business Impact: Access to installation sheets and catalog references accelerates engineering approval and proper installation. Application: Teams can reference IF 288 instructions and EYDX catalog pages to ensure correct sealing method and compliance.
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FAQs
EYDX21 is a 3/4 inch, female expanded fill sealing conduit fitting with drain designed for hazardous locations. It combines a Feraloy iron alloy body with vertical sealing, Group B rating, and NEC/CEC compliance. It is ideal for explosion-proof conduit sealing in chemical plants, refineries, and similar facilities, where reliable drainage and seal integrity reduce maintenance and downtime.
Yes. EYDX21 carries NEC/CEC certifications including Class I, Division 1 and 2, Class II Division 1 and 2, and Class III ratings, plus Hazardous/Classified Locations area classification. This enables safe, compliant use in high-risk zones such as oil, gas, and chemical processing areas while meeting regulatory expectations.
EYDX21 is designed for vertical sealing positions, with a 3/4 in trade size and female thread. Plan for vertical conduit runs, use approved installation instructions (IF 288), and ensure proper drainage and seal integrity. The fitting's corrosion-resistant Feraloy body supports reliable performance in harsh environments, reducing rework during commissioning.
EYDX21 uses a Feraloy iron alloy body for durability and corrosion resistance. It is Group B rated and certified under NEC/CEC for Hazardous/Classified Locations, including Class I Division 1 & 2, Class II Division 1 & 2, and Class III. Documentation also references Canadian certifications, supporting cross-border projects.
EYDX21 reduces field rework through reliable drainage and explosion-proof sealing, lowering maintenance costs and downtime. Its standard 3/4 in size simplifies replacements and stocking, while the vertical orientation and robust materials extend service life in harsh environments, delivering long-term total cost of ownership advantages for industrial facilities.