What should mechanical joints used to connect steel pipe in a fuel-oil supply system be made with?

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In a fuel-oil supply system, mechanical joints used to connect steel pipes should be made with a pipe dope compound. Pipe dope is a type of thread sealing compound that helps prevent leaks by filling the spaces between the threaded joints. It is designed to create a secure seal that can withstand the specific pressures and temperatures associated with fuel-oil transport.

Utilizing pipe dope also helps to lubricate the threads during assembly, making it easier to achieve the necessary tightness without risking damage to the threads. Additionally, it prevents corrosion and protects the integrity of the pipes over time.

While options like welding or threaded fittings may work in various piping systems, they may not provide the same ease of maintenance or leak prevention as a proper dope compound for joints in fuel-oil applications. Sealant tape, although useful in other contexts, is not recommended for metal-to-metal joints in fuel systems, as it may not withstand the potential pressures and chemical exposure in such applications.

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