SA Black Square Head Plug
| SA Siam Class 150 Malleable Black Iron Square Head Plug
SA Siam class 150 black malleable square head plug is an MNPT fitting that stops flow to a dead end pipeline or unused FNPT connection on a fitting . Low-pressure fittings are used mainly in the plumbing, waterworks, and oil and gas industry, where there are low-pressure piping requirements. Threaded low-pressure fittings allow the installer to reassemble it at any time.