Kraloy 7833 EJ12 1 1/4" PVC Ex...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$35.16
Kraloy 7833 EJ12 1 1/4" PVC Expansion Joint

Kraloy 7833 EJ12 1 1/4" PVC Expansion Joint

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Model: 78330

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

$35.16
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Kraloy 7833 EJ12 1 1/4" PVC Expansion Joint

The Kraloy 7833 EJ12 PVC Expansion Joint is a 1 1/4" PVC expansion fitting engineered to absorb thermal expansion and contraction in conduit runs, protecting electrical raceway systems from stress caused by temperature swings between hot and cold cycles. Manufactured from PVC and UL 651 listed, this expansion joint also meets CSA C22.2 No. 85 and NAFTA requirements, making it a code-compliant choice for commercial, industrial, and infrastructure electrical installations where long conduit runs are exposed to changing temperatures. The joint ships pre-lubricated for smooth adjustment during installation and includes O-rings to help prevent leakage at the connection points. It can be installed either vertically or horizontally, giving installers flexibility to match the orientation of the conduit run in the field.

Key Features

  • Trade Size: 1 1/4" expansion joint sized to match 1 1/4" PVC conduit runs.
  • Durable Construction: Manufactured from PVC for corrosion resistance and non-conductive performance in wet, corrosive, or underground environments.
  • Pre-Lubricated Design: Factory-applied lubrication allows smooth, easy adjusting during installation and as the joint moves with thermal cycling.
  • O-Ring Sealed: Ships with O-rings included to help prevent leakage at the expansion joint.
  • Flexible Installation: Can be installed either vertically or horizontally to suit the layout of the conduit run.
  • UL Listed: UL 651 listing supports use in a wide range of code-driven electrical installations.
  • Model: EJ12 expansion joint configuration from Kraloy.

Certifications & Compliance

  • UL 651 Listed
  • CSA C22.2 No. 85
  • NAFTA Compliant

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Water and Sewage Treatment Plants
  • Utilities and Street & Highway Lighting Systems
  • Bridges, Tunnels, and Subways
  • Parking Garages and Airports
  • Steel Mills, Mines, and Industrial Plants
  • Car Washes, Marinas, and Food Processing Plants

Why Kraloy?

Kraloy manufactures its 7833 EJ12 expansion joint from PVC and backs it with UL 651 listing, plus CSA C22.2 No. 85 and NAFTA compliance, giving contractors and electrical engineers a code-compliant option for accommodating conduit expansion and contraction across a wide range of applications, from car washes and food processing plants to bridges, tunnels, and utility installations. The pre-lubricated design and included O-rings simplify field installation while helping maintain a leak-resistant seal over time, and the ability to mount the joint vertically or horizontally adds flexibility for installers working in tight or unconventional spaces. This combination of listed materials and practical installation features supports reliable, long-term performance in demanding electrical raceway systems.

Manufacturer Resources

Product Specs

Product Type:
PVC Expansion Joint
Department:
Electrical
Product Subgroup:
PVC Conduit & Fittings
Product Material:
PVC
Country of Origin:
Canada
Product Group:
Conduit & Raceway

Kraloy 78330 – Frequently Asked Questions

1) Why do I need an expansion joint in a PVC conduit run?
PVC moves a lot with temperature. The Kraloy EJ12 absorbs thermal expansion and contraction so the conduit run isn't stressed as it cycles between hot and cold, which is what protects couplings, boxes and the raceway itself on long exposed runs. Typical spots are bridges, tunnels, parking garages, street and highway lighting, and outdoor industrial runs.
2) Is the Kraloy EJ12 expansion joint UL listed for code work?
UL 651 listed, and it also meets CSA C22.2 No. 85 plus NAFTA requirements. That covers rigid PVC conduit and fittings, which is what an inspector will be looking for on a commercial or industrial raceway.
3) Can a Kraloy PVC expansion joint be installed vertically, like on a riser?
Yes. The EJ12 can be mounted vertically or horizontally, so it works on risers up a wall or column as well as on horizontal runs. Orientation doesn't change how the fitting works.
4) Do I need to buy lubricant or gaskets separately for the Kraloy expansion joint?
No. The EJ12 ships pre-lubricated from the factory and comes with O-rings installed to resist leakage at the joint. You still need PVC cement for the conduit connections themselves, since the fitting body solvent-welds to the run like any PVC fitting.
5) Will a PVC expansion joint hold up in a wet or corrosive location like a car wash or treatment plant?
That's exactly where it gets used. The Kraloy EJ12 is all PVC, so it's non-conductive and corrosion resistant in wet, corrosive and underground environments, and the listed applications include water and sewage treatment plants, car washes, marinas, food processing plants, steel mills and mines.
6) Is the Kraloy 7833 the same thing as an expansion coupling or a PVC coupling?
Not the same. A standard PVC coupling is a fixed joint that holds two conduit ends rigid. The Kraloy EJ12 is a telescoping expansion fitting that lets the conduit slide as it heats and cools, sealed with O-rings so the raceway stays closed while it moves. Use a coupling where the run is buried and stable, and the expansion joint where the run is exposed to temperature swings.
How fast can I get the Kraloy 78330 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 Kraloy 78330 come with a warranty?
Absolutely. The Kraloy 78330 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 Kraloy 78330?
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 Kraloy 78330 from ZenSupply?
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