Eaton Crouse-Hinds EYD21 Conduit Sealing Fitting - Group B Rated
Part Number: EYD21
Quick Summary
EYD21 conduit sealing fitting is a rugged, vertical-sealing solution for hazardous-location conduit systems in industrial facilities. This design addresses moisture ingress, dust intrusion, and corrosive environments that threaten uptime and equipment life. It carries NEC/CEC compliance and hazardous-location ratings to support safe installations in demanding settings. With Group B rating and durable materials, it delivers reliable protection where explosions or ignition sources are a concern. The vertical drain and 3/4 inch trade size streamline alignment with common conduit assemblies, while the female connection simplifies compatibility in retrofit and new-build projects. This combination supports faster installs, lower maintenance, and long-term cost savings for safety-focused projects.
Product Information
Extended Description
EYD21 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYD conduit sealing fitting with drain, Female, Feraloy iron alloy and/or ductile iron, Vertical only, Group B rated, 3/4"
Product Name
Eaton Crouse-Hinds series EYD conduit sealing fitting with drain
Catalog Number
EYD21
Product Length/Depth
1.5 in
Product Height
3.69 in
Product Width
1.5 in
Product Weight
1.94 lb
UPC
782274365060
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
Ductile iron Feraloy iron alloy
Special features
Group B rated
Crouse-Hinds series EYD and EZD Explosionproof Conduit Sealing Fittings with Drain catalog page
EYD and EZD Explosionproof Conduit Sealing Fittings with Drain Canadian certification
EYD and EZD Explosionproof Conduit Sealing Fittings with Drain Canadian certification
IF 287 - Conduit Sealing
Eaton Specification Sheet - EYD21
Feature → Business Impact → Application: The EYD21 uses ductile iron and Feraloy iron alloy, delivering superior durability and corrosion resistance in tough environments, reducing replacement costs and downtime for fire and explosion-protected installations. Application: chemical plants, refineries, mining facilities, and other hazardous locations requiring robust explosionproof sealing. Feature → Business Impact → Application: Vertical sealing position ensures correct drainage flow and gravity-assisted venting, minimizing water retention inside conduit paths and extending seal life. Application: vertical conduit runs in outdoor or underground facilities where moisture migration is a risk. Feature → Business Impact → Application: Integrated drain feature provides a reliable pathway for collected fluids, reducing maintenance intervals and preventing seal hydrostatic pressure buildup. Application: washdown-enabled or wet-dust environments. Feature → Business Impact → Application: 3/4" trade size and female gender ensure compatibility with a wide range of conduit fittings, streamlining installation and reducing part proliferation. Application: standard industrial installations and retrofits. Feature → Business Impact → Application: Group B rated and NEC/CEC compliance deliver certified protection for hazardous locations, supporting regulatory approvals and safer operation. Application: electrical design for Class I, II, and III environments. Feature → Business Impact → Application: Provides a compact, lightweight (1.94 lb) option that reduces handling effort on site, improving installation efficiency. Application: field crews and assembly lines with limited lifting capacity. The combination of material selection, drain capability, and certified ratings also helps meet installation standards outlined in IF 287 and related Eaton documentation, reinforcing design confidence for engineers and procurement teams.
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FAQs
The EYD21 is designed for hazardous-location conduit systems in industrial facilities. Its 3/4 inch trade size and female connection make it ideal for vertical installations with drainage, particularly in chemical plants, refineries, and mining operations where moisture control and explosion protection are essential. The Group B rating supports compliance with Class I, II, and III environments.
EYD21 carries NEC/CEC compliance and Hazardous/Classified Locations ratings, including Class I Division 1 and 2, Class II Division 1 and 2, and Class III, plus a Group B rating. These certifications ensure the product meets industry safety standards for explosive atmospheres, enabling safe operation, regulatory approval, and reduced risk in demanding environments.
Yes. The EYD21 is a 3/4" trade size conduit sealing fitting with a female connection, designed for integration with common conduit systems and Crouse-Hinds EZD components. It supports vertical-only sealing and includes a drain to manage condensate, making it straightforward to retrofit or install in existing layouts.
Maintenance focuses on ensuring the drain remains unobstructed and the sealing pathway is free of debris. The ductile iron/Feraloy alloy construction provides durability against corrosion, reducing replacement frequency. Regular inspection for signs of wear or water accumulation should be part of routine maintenance in hazardous areas to sustain performance.
The EYD21 delivers regulatory compliance, reliable moisture control, and durable construction in hazardous locations, reducing downtime and repair costs. Its compatibility with standard fittings simplifies procurement, while the vertical drain feature minimizes maintenance overhead. Overall, it supports safer installations, faster commissioning, and a lower total cost of ownership in demanding industrial environments.