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Killark AF8 Expansion Fitting

  • rebeccavanessendel
  • Apr 22
  • 2 min read

Updated: 14 hours ago


With 8" Linear Movement


Killark's AF8 Coated Series Expansion fittings are for use with IMC or rigid conduit installations. The AF8 Coated Series adds additional corrosion resistance in applications where abnormal environmental conditions exist. This series still prevents damage of the electrical installations typically used in buildings and bridges by compensating linear movement due to temperature fluctuation or structural movement. This series provides maximum 8" conduit movement (4" in either direction).


Applications

AF/AF8 Series Coated Expansion Fittings are for use with IMC or rigid conduit installations. The polyolefin coat adds additional corrosion resistance in applications where abnormal environmental conditions exist. This series still prevents damage of the electrical installations typically used in buildings and bridges by compensating linear movement due to temperature fluctuation or structural movement. This series provides up to a maximum 4" and 8" conduit movement (2" and 4" in either direction).


For applications involving IMC, a 15" minimum length of rigid conduit should be used entering the expansion fitting due to the slightly smaller O.D. of the IMC.


Features

  • 40 mil polyolefin exterior coating

  • Conduit body is cast from durable and naturally corrosive resistant ZA12 alloy

  • Relies on tinned braided copper external bonding jumper (AJ Series) per NEC 250.98

  • Includes phenolic insulating bushing

  • Contains PTFE synthetic fiber reinforced gasket with steel washer to help maintain a strong seal

  • Tinned braided copper ring

  • Rain, water and concretetight







(1) Casted Body with NPT hub size


(2) Type "A" Phenollc Insulating Bushing


(3) Galvanized Washer


(4) Teflon Water Tight Packaging


(5) Tinned Copper Braid


(6) End Coupling







Specifications


  • Contains no VOCs and no halogens

  • Sealing boots for conduits

  • Field Repairable

Material/Finish


  • ZA12 (zinc Alloy) standard

  • Hot Dipped Galvanized

  • Aluminum

  • Polyolefin Coated

Power-Flo Technologies is proud to partner with Killark as they are dedicated to meeting customer needs, with engineering solutions, new product development and on-time delivery in every phase of the project. The Killark AF8 Coated Series Expansion Fittings are a robust and reliable solution for conduit installations in environments where corrosion resistance and flexibility are critical. Designed to accommodate structural movement and temperature-related expansion, these fittings ensure the integrity of electrical systems in demanding applications such as buildings and bridges. With their durable construction, advanced sealing components, and polyolefin coating, the AF8 Series not only meets but exceeds industry standards for safety, performance, and longevity. Whether working with IMC or rigid conduit, this series offers a dependable choice for long-term protection and performance in harsh conditions.

 
 
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