How do you adapt plastic to cast-iron bell and spigot?

How do you adapt plastic to cast-iron bell and spigot?

• A. Approved lead joint plastic adapter
• B. Rubber gasket
• C. Epoxy sealant
• D. Solder-on sleeve

Answer: (A)

To adapt plastic to cast-iron bell and spigot, you use an approved lead joint plastic adapter. This transition fitting is designed to fit into the cast-iron bell and accept the plastic pipe, with lead formed in the joint to create a watertight seal. It preserves the established lead-joint method while allowing the use of plastic pipe, which is why it’s the best choice. The other options don’t provide the proper lead-wetted connection for a bell-and-spigot transition: a rubber gasket is a different joint style, epoxy sealant isn’t used to make this type of joint, and a solder-on sleeve isn’t appropriate for a plastic-to-cast-iron bell-and-spigot connection.

To adapt plastic to cast-iron bell and spigot, you use an approved lead joint plastic adapter. This transition fitting is designed to fit into the cast-iron bell and accept the plastic pipe, with lead formed in the joint to create a watertight seal. It preserves the established lead-joint method while allowing the use of plastic pipe, which is why it’s the best choice. The other options don’t provide the proper lead-wetted connection for a bell-and-spigot transition: a rubber gasket is a different joint style, epoxy sealant isn’t used to make this type of joint, and a solder-on sleeve isn’t appropriate for a plastic-to-cast-iron bell-and-spigot connection.