Appleton EYS Series 25% Fill C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$87.04
Appleton EYS Series 25% Fill Conduit Sealing Fitting

Appleton EYS Series 25% Fill Conduit Sealing Fitting

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Model: EYS116

In Stock (leaves warehouse same day if ordered before 3pm ET)

$87.04
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Appleton EYS Series 25% Fill Conduit Sealing Fitting

The Appleton EYS Series 25% fill vertical and horizontal sealing fitting prevents the passage of gases, vapors, or flames from one portion of a conduit system to another, restricting ignitable gas or vapor accumulation to confine explosive pressure. Constructed of Grayloy™-iron with a triple-coat finish, these fittings are explosionproof, dust-ignitionproof, and raintight, and are suitable for use in Class I and II locations.

Key Features

  • Integral Bushing: Smooth, rounded integral bushing in each hub protects conductor insulation.
  • Interchangeable Nipple: Removable nipple in the male sealing fitting may be used interchangeably in the top or bottom hub.
  • Vertical and Horizontal Configuration: Rated for use in either orientation within Class I, Division 1 and 2 locations.
  • Durable Construction: Grayloy™-iron body resists corrosion and provides rigid, long-lasting joints.
  • Accurately Tapped Threads: Tapered threads deliver tight, rigid joints and dependable ground continuity.
  • Large Fill Opening: Generous opening simplifies damming and filling of the sealing compound.
  • Sealing Compound Compatibility: UL Listed for use with Kwiko™ A Sealing Compound; also listed with certain competitor sealing cements (contact factory for details).
  • Explosionproof Protection: Explosionproof, dust-ignitionproof, and raintight design prevents pressure piling and restricts any explosion to the sealed-off enclosure.

Certifications & Compliance

  • Class I, Division 1 and 2, Groups A, B, C, D
  • Class II, Division 1 and 2, Groups E, F, G
  • Class III
  • UL Listed for use with Kwiko™ A Sealing Compound
  • Explosionproof, Dust-Ignitionproof, Raintight

Technical Specifications

  • NEC/CEC Certifications and Compliances: Class I, Division 1 and 2, Groups A, B, C, D; Class II, Division 1 and 2, Groups E, F, G; Class III.
  • Standard Material and Finishes: Grayloy™-iron with triple-coat finish – (1) zinc electroplate, (2) chromate, and (3) epoxy powder coat.

Typical Applications

  • Class I and II Hazardous Location Conduit Systems
  • Boundary Sealing Where Conduit Leaves a Classified Location
  • Enclosures Housing Terminals, Splices, or Taps in Division 1 and 2 Locations
  • Sealing Between Enclosures Connected by 36' or Less of Conduit
  • Oil & Gas, Chemical Processing, and Industrial Explosionproof Wiring

Why Appleton?

Appleton sealing fittings combine Grayloy™-iron construction with a triple-coat zinc electroplate, chromate, and epoxy powder coat finish for corrosion resistance and long-term reliability in demanding hazardous locations. With explosionproof, dust-ignitionproof, and raintight performance backed by UL Listing, the EYS Series delivers code-compliant sealing for Class I and II conduit systems on professional electrical installations.

Product Specs

Product Type:
Sealing Fitting
Product Finish:
Triple-Coat Finish
Configuration:
Vertical and Horizontal
Series:
EYS
Listing:
UL Listed
Product Material:
Malleable Iron
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Fittings

Appleton EYS116 – Frequently Asked Questions

1) Can an Appleton EYS sealing fitting be installed horizontally, or does it have to be vertical?
Both. The EYS Series 25% fill fitting is rated for vertical and horizontal orientation in Class I, Division 1 and 2 locations, so the same part works for a boundary seal on a horizontal run or on a riser. That matters on the job because a lot of seals are orientation-specific and you end up stocking two part numbers.
2) What hazardous location classes and groups is the Appleton EYS sealing fitting approved for?
Class I, Division 1 and 2, Groups A, B, C and D; Class II, Division 1 and 2, Groups E, F and G; and Class III. It is UL Listed, and the design is explosionproof, dust-ignitionproof and raintight. That group coverage includes Group A (acetylene) and Group B (hydrogen), which is the part most seals get rejected on.
3) What trade sizes does the Appleton EYS 25% fill sealing fitting come in?
Two: 1/2 inch trade size (EYS116) and 1 inch trade size (EYS316). Pick the size to match the rigid conduit run it is sealing; the tapered threads are cut to give a tight, rigid joint and dependable ground continuity, so it threads directly onto the conduit without a reducer.
4) What does 25% fill mean on a conduit sealing fitting, and can I use it on a fully loaded conduit?
25% fill refers to the maximum cross-sectional area of conductors the fitting is rated to seal around, not the conduit's own fill. The EYS Series is a 25% fill fitting, so a conduit loaded to the NEC's standard 40% fill for three or more conductors needs a higher-fill sealing fitting instead. Count your conductors against the fitting's 25% limit before you order.
5) What sealing compound do I use with an Appleton EYS fitting?
Kwiko A Sealing Compound is what the EYS Series is UL Listed with. Certain competitor sealing cements are also listed with it, but that list comes from the factory. The fitting has a large fill opening to make damming and packing the fiber and pouring the compound easier, and each hub has a smooth rounded integral bushing so the conductor insulation is not cut as you dam it.
6) Where in the conduit run does code require a seal like the EYS?
The typical placements the EYS covers are boundary seals where conduit leaves a classified area, enclosures that house terminals, splices or taps in Division 1 and 2 locations, and between two enclosures connected by 36 feet or less of conduit. Common on oil and gas, chemical processing and industrial explosionproof wiring. The fitting restricts any explosion to the sealed-off enclosure and prevents pressure piling down the raceway.
7) Will the Appleton EYS hold up outdoors or in a corrosive plant environment?
It is raintight, and the body is Grayloy-iron with a triple-coat finish: zinc electroplate, then chromate, then epoxy powder coat. That stack is what carries it in wet outdoor runs and corrosive process areas. For severe chemical exposure beyond that, an installer would normally move to a stainless or specially coated fitting.
8) Is the nipple on the EYS male sealing fitting removable?
Yes. The removable nipple in the male EYS sealing fitting can be used interchangeably in the top or bottom hub, so you can orient the male end to suit the enclosure you are landing on instead of ordering a different fitting.
How fast can I get the Appleton EYS116 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Appleton EYS116 come with a warranty?
Absolutely. The Appleton EYS116 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Appleton EYS116?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Appleton EYS116 from ZenSupply?
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