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Hazardous Location Conduit Unions, Expansion Unions & Nipples

Available63 products

These unions, expansion unions, and nipples join pieces of heavy-wall RMC and medium-wall IMC metal conduit together, or join electrical boxes and enclosures in hazardous industrial locations, such as petroleum refineries, gasoline storage areas, and petrochemical facilities. They form a tight seal to protect wire and cable in areas where flammable gases, vapors, powdered metals, or dust is present.

Material

Straight Union - Conduit to Conduit

Straight Union - Conduit to Conduit
These straight unions connect two pieces of threaded RMC and IMC conduit together by screwing onto each piece. They’re suitable for use in hazardous locations where flammable gases, vapors, powdered metals, or dust is present.

Steel

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Iron

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Aluminum

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Straight Union - Conduit to Box

Straight Union - Conduit to Box
These straight unions connect threaded RMC and IMC conduit to electrical boxes. One end screws onto the conduit, while the other inserts into the box and is held in place with a locknut. These unions are suitable for use in hazardous locations where flammable gases, vapors, powdered metals, or dust is present.

Aluminum

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Iron

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Steel

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90° Union - Conduit to Box

90° Union - Conduit to Box
These unions connect threaded RMC and IMC conduit to electrical boxes on a 90° angle. One end threads onto the conduit, while the other inserts into the box and is secured with a locknut. These unions are suitable for use in hazardous locations where flammable gases, vapors, powdered metals, or dust is present.

Aluminum

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Steel

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Expansion Union - Conduit to Conduit

Expansion Union - Conduit to Conduit
These expansion unions screw onto the ends of two pieces of threaded RMC and IMC conduit and have a telescoping piston that extends and retracts to compensate for length changes of conduit. They’re often used where there are large fluctuations in temperature, which can cause conduit to expand and contract. These unions are suitable for use in hazardous locations where flammable gases, vapors, powdered metals, or dust is present.

Steel

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Expansion Union - Conduit to Box

Expansion Union - Conduit to Box
These expansion unions connect threaded RMC and IMC conduit to electrical boxes and have a telescoping piston that extends and retracts to compensate for length changes of conduit. One end screws onto the conduit, and the other inserts into the box and is held in place with a locknut. These unions are often used where there are large fluctuations in temperature, which can cause conduit to expand and contract. These unions are suitable for use in hazardous locations where flammable gases, vapors, powdered metals, or dust is present.

Iron

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Steel

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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.