Cut Sheet

Elbows
Explosion-Proof, Dust-Ignition-Proof
Application
EYD drain and inspection sealing fittings:
• Restrict the passage of gases, vapors or flames from
one portion of the electrical installation to another at
atmospheric pressure and normal ambient temperatures
• Limit explosions to the sealed-off enclosure
• Prevent precompression or “pressure piling” in conduit
systems. Drain sealing fittings are installed in vertical
conduit runs and at low points in conduit systems
to prevent accumulation of condensate above seal
Features
EYD drain sealing fittings include:
• Drain to provide continuous, automatic drainage
of condensate
• Large openings with threaded closures to provide
easy access to conduit hubs for making dams
• Integral bushings to protect conductor insulation
from damage
• Tapered-tapped hubs to ensure ground continuity
Standard Materials
• Bodies, and inspection or drain covers — Gray iron alloy
and/or ductile iron
• Closure for drain — copper-free aluminum or ductile iron
• Small closure plug — Gray iron alloy and/or steel
• Drain — stainless steel
• Removable nipples — steel
Standard Finish
• Gray iron alloy and ductile iron — electrogalvanized
and aluminum acrylic paint
• Copper-free aluminum — natural
• Stainless steel — natural
• Steel — electrogalvanized
Options
• Copper-free aluminum bodies, nipples and enclosures —
see listings
Size Ranges
• EYD —
1
⁄2"–4"
Listings/Compliances
• EYD11 — 31-TB
Class I, Division 1 & 2, Groups A,B,C,D. Class II, Division 1,
Groups E, F, G. Class III.
• EYD41 — 101-TB
Class I, Division 1 & 2, Groups C,D. Class II, Division 1,
Groups E, F, G.
Class II, Division 2, Groups F, G.
Class III
• UL Standard: 886
• CSA Standard: C22.2
• NEMA 3, 4, 7 CD, 9 EFG
• Explosion-Proof
• Dust-Ignition-Proof
• Raintight
• Wet Locations
Sealing Compound and Fibers
• Seal A3 (1 lb. can of sealing compound)
• Fiber X6 (8 oz. fiber packing)
• Seal Kit (1 lb. can of sealing compound
and 1 oz. fiber packing)
A-81
United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
www.tnb.com