HDPE Couplings & Fittings
HDPE couplings and fittings are used to join, seal, and transition conduit systems across telecom, broadband, electrical, power and utility installations. Different coupling types are designed for specific applications—from quick push-fit connections to high-strength mechanical joints and permanent fusion systems. Galloway stocks a full range of HDPE couplings and fittings to support varying installation methods, conduit types, and performance requirements.
Shur-Lock II
The Shur-Lock II is a band-clamp coupling designed for secure, air-tight connections across HDPE, PVC, and other conduit materials. It features a clamped HDPE body with an integrated O-ring seal, providing reliable performance in a range of installation conditions. Commonly used where different conduit types must be joined or where a high-integrity mechanical connection is required.
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Sizes1” through 6”
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Seal Rating125 PSI (1”–3”)
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ETL/UL ListedYes (Available)
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Key FeatureJoins dissimilar conduit types
Aluminum Reverse Threaded
Aluminum reverse threaded couplings provide a mechanical connection for HDPE conduit using opposing left-hand and right-hand threads that draw the conduit ends together as the coupling is tightened. The aluminum construction offers corrosion resistance and lighter weight than steel alternatives. Installation requires only standard tools, making it a practical solution for direct-bury and general purpose conduit joining.
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Sizes3/4” through 2”
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Tools RequiredStandard pipe wrench
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ConstructionAluminum body, dual-threaded
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FeatureNo specialized tools required
Aluminum Barbed Coupling
Aluminum barbed couplings provide a high-strength mechanical connection for HDPE conduit, designed for applications requiring strong pull-out resistance such as directional boring. The barbed profile grips the conduit wall along its full circumference, creating a secure, pull-resistant connection when installed with a hydraulic press tool.
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Sizes1” through 2”
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Tools RequiredHydraulic press tool with die sets
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ConstructionAluminum body, barbed profile
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FeatureHigh pull-out resistance for trenchless
Clear-Lock
The Clear-Lock is a push-fit coupling with a transparent body that allows visual confirmation of proper conduit insertion. It installs quickly without tools, making it well-suited for pull boxes, vaults, and other limited-access environments where speed and accuracy are important.
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Sizes3/4” through 2”
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Seal Rating250 PSI
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Tools RequiredNone (Push-fit)
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FeatureClear body for visual confirmation
Comfit
The Comfit is a compact push-fit coupling designed for quick, tool-free installation in space-constrained environments. Its low-profile design makes it well-suited for tight installations while providing a reliable, air-tight connection for both cable pulling and blowing applications.
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Sizes3/4” through 2”
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Seal Rating230 PSI
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Tools RequiredNone (Push-fit)
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FeatureCompact design for tight spaces
CoBALT
The CoBALT coupling is a high-strength, tool-free solution designed for demanding conduit installations. Its tapered design accommodates irregular or ovalized conduit, providing a secure connection where standard couplings may not perform. Commonly used in applications requiring high pull-out resistance or transitions between conduit types.
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SizesHDPE to HDPE: 1-1/4”, 1-1/2”, 2”
HDPE to PVC Slip: 2”, 3”, 4” -
Pull-out Strength3,845+ lbs
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ETL/UL ListedYes
E-Loc (ETCO)
The E-Loc coupling is designed for joining different conduit types, including smoothwall and corrugated duct, as well as transitions to PVC or threaded conduit. Its elastomer sleeve creates an air- and water-tight seal, making it well-suited for standard conduit connections where material compatibility is required. Not intended for pulling applications or high-tension installations.
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Sizes3/4” through 6”
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Seal Rating200 PSI
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ConstructionPVC shell / elastomer sleeve
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FeatureJoins smoothwall + corrugated
Split-Lock+
The Split-Lock+ is a reusable, split coupling designed for installations where conduit ends are not accessible. Its two-piece design allows it to be installed over existing conduit, making it well-suited for temporary connections, slack-loop applications, and air-assisted cable jetting setups.
Flanged Maintenance Pipe (FMP) - Split Steel
Flanged Maintenance Pipe (FMP) is a split steel sleeve coupling designed for repairing and reconnecting existing HDPE conduit, particularly where the pipe is damaged or out-of-round. Its two-piece, bolted design allows installation over in-place conduit without removing or disconnecting the line, making it well-suited for maintenance, retrofit, and field repair applications.
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Part No. |
Size |
I.D. |
Length |
Weight |
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FMP2/coupling |
2” |
2.375” |
12” |
6 lbs |
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FMP3/coupling |
3” |
3.5” |
15” |
9 lbs |
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FMP4/coupling |
4” |
4.5” |
15” |
10.75 lbs |
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FMP5/coupling |
5” |
5.663” |
15” |
12.75 lbs |
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FMP6/coupling |
6” |
6.625” |
15” |
14.75 lbs |
Molded Electrofusion Couplings (Central Plastics)
Electrofusion couplings provide a permanent, pressure-rated connection for HDPE conduit and pipe systems. Each fitting contains embedded heating elements that fuse the coupling to the pipe wall, creating a continuous, fully restrained joint. Commonly used in pressure applications and systems where long-term joint integrity is critical, electrofusion requires a compatible fusion processor for installation.
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Size Standard |
Range |
Notes |
Length |
Weight |
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CTS (Copper Tube Size) |
1/2” through 1-1/4” |
PE2406 (MDPE) or PE3408 (HDPE) |
12” |
6 lbs |
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IPS (Iron Pipe Size) |
1/2” through 12” |
PE2406 or PE3408 |
15” |
9 lbs |
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DIPS (Ductile Iron Pipe Size) |
4” through 12” |
PE3408 only |
15” |
10.75 lbs |
You may also need
HDPE Smoothwall Conduit
Continuous-reel HDPE smoothwall duct — the primary pathway these push-fit and electrofusion couplers join and transition.
Fiber Optic Cable
Loose tube OSP backbone, ribbon, flat and round drop, and air-blown microduct cable — the fiber your conduit pathway carries.
Fiber Blowing Installation
Jetting machines and blowing heads — the couplers' air-tight seals are what let you blow fiber through a coupled run.
Brands we carry
Need HDPE Couplings & Fittings for Your Next Build?
Galloway stocks a full range of HDPE couplings and fittings across our distribution network, supporting everything from standard conduit connections to high-strength and specialty applications. Whether you're matching conduit types, selecting for pull-out strength, or planning for installation conditions, our team can help you identify the right coupling and get the material moving.
Not sure exactly what you need? Call and let’s talk about what you’re building — we’ll help work it out.
