Eaton Crouse-Hinds EYS31 Conduit Sealing Fitting - Group B
Part Number: EYS31
Quick Summary
EYS31 conduit sealing fitting is designed to seal conduit connections in hazardous locations, protecting wiring from moisture and dust. In harsh industrial environments, incomplete seals lead to corrosion, ignition risk, and costly downtime. This unit carries NEC/CEC compliance and is rated for Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III hazardous locations with UL certification for explosion-proof service. The 1-inch trade size provides a precise fit for standard conduit runs, while its ductile iron and feraloy iron alloy construction delivers durable, long service life. For engineers and procurement teams, the combination of compliance, rugged durability, and straightforward installation translates into lower lifecycle costs and faster project commissioning.
Product Information
Extended Description
EYS31 Eaton Crouse-Hinds: Eaton Crouse-Hinds series EYS conduit sealing fitting, Female, Feraloy iron alloy and/or ductile iron, Vertical or horizontal, Group B rated, 1"
Product Name
Eaton Crouse-Hinds series EYS conduit sealing fitting
Catalog Number
EYS31
Product Length/Depth
1.75 in
Product Height
4.31 in
Product Width
1.75 in
Product Weight
1.58 lb
UPC
782274378619
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
Sealing position
Vertical or horizontal
Gender
Female
Trade size
1"
Material
Ductile iron Feraloy iron alloy
Special features
Group B rated
Eaton Crouse-Hinds EYS31 3D drawing
Crouse-Hinds series EYS and EZS Explosionproof Conduit Sealing Fittings catalog page
EYS and EZS Explosionproof Conduit Sealing Fittings UL certification
EYS and EZS Explosionproof Conduit Sealing Fittings UL certification
IF 287 - Conduit Sealing
Eaton Specification Sheet - EYS31
Feature: 1 inch trade size and female gender enable a precise, standardized fit for common conduit runs. Business Impact: Reduces installation complexity and minimizes the need for adapters, cutting project time and material waste. Application: Ideal for new builds or retrofits in hazardous environments where space is constrained and quick, reliable sealing is required. Feature: Vertical or horizontal sealing capability provides installation flexibility. Business Impact: Improves accessibility in tight spaces and supports conduit routing in complex layouts, lowering field rework. Application: Safe and compliant sealing in chemical plants and refineries where orientation may vary. Feature: Group B rated and NEC/CEC compliance with Class I/II/III hazardous location ratings. Business Impact: Enhances safety and regulatory adherence, reducing risk during inspections and audits. Application: Suitable for offshore platforms, mining facilities, and other high-risk sites. Feature: Ductile iron and Feraloy iron alloy materials offer robust corrosion resistance and mechanical strength. Business Impact: Extends service life in rugged environments, lowering maintenance cycles and replacement costs. Application: Industrial environments with exposure to moisture, dust, and vibration. Feature: UL-certified explosion-proof capability with recognized safety-rated performance. Business Impact: Facilitates procurement and approval processes, streamlining compliance documentation. Application: Projects requiring verified flame- and ignition-protection for electrical fittings in hazardous areas.
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FAQs
To install EYS31, ensure power is de-energized and the conduit area is prepared for sealing. Align the fitting with the conduit run in either vertical or horizontal orientation, insert the conduit, and tighten to the manufacturer’s torque specification. Verify seal integrity and re-check for proper alignment after installation to ensure ongoing protection in hazardous environments.
EYS31 supports NEC/CEC compliance and hazardous location ratings including Class I, Division 1 and 2, Class II, Division 1 and 2, and Class III, with UL certification for explosion-proof service. It is designed for hazardous/classified locations and is suitable for areas requiring robust ignition-protection and code compliance.
Yes. EYS31 is explicitly described as capable of vertical or horizontal sealing. This orientation flexibility supports installation in tight spaces and varied routing, while maintaining a secure, ingress-protective seal for 1" trade size conduits in hazardous locations.
EYS31 is made from ductile iron and/or Feraloy iron alloy and is a female, 1" trade size conduit sealing fitting. It is designed to be compatible with standard Crouse-Hinds conduit systems and supports vertical or horizontal sealing, enabling straightforward integration into existing installations without excessive hardware changes.
The EYS31 offers extended service life due to durable materials and rugged construction, reducing maintenance frequency. Compliance with NEC/CEC and UL explosion-proof certifications lowers risk during audits. The simple installation and reliable sealing reduce downtime and procurement complexity, delivering a favorable total cost of ownership over the equipment lifecycle.