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Ocal CPL11/4-GST PVC-Coated Conduit Coupling, 1-1/4"
The Ocal CPL11/4-GST is a 1-1/4" PVC-coated conduit coupling engineered to join sections of rigid conduit in corrosive or high-moisture environments where standard galvanized fittings fail prematurely. Built on a threaded steel body and finished with a durable PVC coating, this coupling delivers the mechanical strength of rigid steel conduit with the corrosion resistance of a coated system. Ocal PVC-coated products are a recognized standard in industrial and municipal applications where chemical exposure, humidity, or outdoor weathering would otherwise degrade uncoated hardware.
Key Features
- Trade Size: 1-1/4" coupling sized to match standard 1-1/4" rigid conduit runs.
- Durable Construction: PVC-coated steel body resists corrosion, chemical attack, and moisture intrusion far better than bare galvanized steel.
- Threaded Connection: Threaded ends provide a secure, code-compliant mechanical and electrical bond between conduit sections.
- Coating Integrity: The PVC coating extends over the coupling body to maintain continuous corrosion protection at the joint, reducing the risk of a weak point in the raceway system.
- Application Versatility: Suited for use in industrial plants, wastewater facilities, food and beverage processing, and other environments with harsh or corrosive atmospheres.
Technical Specifications
- Product Type: PVC-Coated Conduit Coupling
- Trade Size: 1-1/4"
- Material: PVC-Coated Steel
- Connection: Threaded
Typical Applications
- Industrial and Chemical Processing Facilities
- Wastewater and Water Treatment Plants
- Outdoor and Corrosive-Atmosphere Conduit Runs
- Food and Beverage Processing Environments
- Rigid Conduit Raceway Extensions and Repairs
Why Ocal?
Ocal PVC-coated conduit fittings are built to extend the service life of rigid conduit systems in environments where corrosion is a constant threat. The threaded, PVC-coated steel construction of the CPL11/4-GST coupling helps maintain a continuous, protected raceway, supporting reliable, code-compliant electrical installations for demanding industrial applications.
"Manufacturer Resources
Spec Sheet
Product Specs
- list_batch:
- OCL-20260924
- Product Type:
- Conduit Coupling
- Connection Type:
- Threaded
- Department:
- Electrical
- Product Subgroup:
- Conduit Fittings
- Product Material:
- PVC-Coated Steel
- Product Size:
- 1-1/4"
- Product Group:
- Conduit & Raceway
- Product Color:
- Gray
Ocal CPL11/4-GST – Frequently Asked Questions
1) Will the Ocal CPL11/4-GST coupling thread onto 1-1/4 inch rigid steel conduit?
Yes. The CPL11/4-GST is a 1-1/4 inch trade size coupling with threaded ends, so it joins two runs of threaded 1-1/4 inch rigid conduit. It is sized to the trade size only, so it will not adapt between sizes, and it will not accept unthreaded EMT.
2) Is a PVC-coated coupling necessary, or will a standard galvanized coupling do the job?
It depends on the atmosphere. In dry indoor runs a plain galvanized coupling is fine. The Ocal CPL11/4-GST exists for wastewater plants, chemical and food processing, and outdoor corrosive exposure, where bare galvanized fittings degrade early. Its PVC coating carries over the body so the joint does not become the weak point in an otherwise coated raceway.
3) What can be used instead of the Ocal CPL11/4-GST when the conduit ends are not threaded?
The Ocal CPL11/4-GST joins conduit with a threaded connection, so both conduit ends have to be threaded to land in it. Where the run has plain, unthreaded ends, the SEPCO NTCC Series coupling is a compression coupling in malleable iron, which makes up on the conduit without requiring cut threads. The tradeoff is the coating: the Ocal coupling is PVC-coated steel, which is what carries the corrosion protection through the joint in wet or chemically aggressive areas.
4) Is the nVent CADDY ERC 2G9S10WB twist coupling an equivalent to the Ocal CPL11/4-GST?
No. The nVent CADDY ERC 2G9S10WB is a twist coupling for metallic conduit sold in packs of 100, which suits high-volume repetitive work on standard metallic raceway. The Ocal CPL11/4-GST is a threaded PVC-coated steel coupling in a 1-1/4 inch trade size, intended for corrosion-protected connections between conduit sections. If the specification calls for a coated raceway system, the twist coupling does not carry the PVC coating that keeps the protection continuous at the joint.
5) Does a PVC-coated coupling still provide an electrical bond between conduit sections?
Yes. The coupling is steel underneath the PVC, and the threaded ends make metal-to-metal contact with the conduit, so continuity through the raceway is maintained. The coating is an exterior corrosion jacket, not an insulating break in the path.
6) What is the difference between an Ocal PVC-coated threaded coupling and a compression or twist coupling?
Different conduit systems entirely. The Ocal CPL11/4-GST threads onto rigid steel conduit for corrosive and wet locations. The SEPCO NTCC Series is a malleable iron compression coupling, and the nVent CADDY ERC 2G9S10WB is a twist coupling for metallic conduit sold 100 to a pack. Compression and twist types are made for faster assembly on unthreaded conduit, not for coated corrosion-resistant raceway.
7) Can I use this coupling to repair or extend an existing rigid conduit run?
That is one of its intended uses. The CPL11/4-GST joins two threaded 1-1/4 inch rigid conduit ends, so it works for raceway extensions and repairs. The existing conduit ends have to be cut and field-threaded cleanly; the coupling does not grip unthreaded pipe.
8) For a dry indoor conduit run, is there a simpler coupling than the Ocal CPL11/4-GST?
Yes. The PVC coating on the Ocal CPL11/4-GST exists to protect the joint in corrosive and high-moisture settings, and indoors in dry conditions that protection is not doing work. For plain metallic conduit in those areas, the nVent CADDY ERC 2G9S10WB twist coupling covers the connection and comes in a 100-piece pack, and the SEPCO NTCC Series malleable iron compression coupling is another option. Reserve the Ocal coated coupling for the sections of the system where the coating is specified.
9) What color is the Ocal CPL11/4-GST, and will it match the rest of a coated conduit system?
Gray. That is the standard Ocal coated finish, so it blends with gray PVC-coated rigid conduit and other Ocal fittings on the same run.
10) Where do I find the manufacturer spec sheet for the Ocal CPL11/4-GST?
Ocal publishes a spec sheet for the coupling, hosted at https://media.distributordatasolutions.com/ThomasAndBetts/2018q3/0234f2e6ee0dc827e8874557efc2cad0c0dd89fe.pdf. Order by part number CPL11/4-GST.
How fast can I get the Ocal CPL11/4-GST delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 Ocal CPL11/4-GST come with a warranty?
Absolutely. The Ocal CPL11/4-GST 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 Ocal CPL11/4-GST?
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