Plugs
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Brass plugs are used to close the external thread at the end of a pipe, fitting or valve. Unlike a cap, which screws onto an external thread, a plug screws into an internal thread.
They are available in the most common sizes 3/8", 1/2", 3/4" and 1", suitable for both heating and water systems.
Frequently Asked Questions
- What is the difference between a plug and a cap? A plug has an external thread and screws into the internal thread of a fitting, while a cap has an internal thread and fits over the external thread of a pipe.
- What are plugs used for? For closing an unused outlet on a manifold, T-piece or valve.
- Is sealant needed on the plug thread? Yes, PTFE tape or hemp fibre with sealing paste.