Here are some common applications where malleable iron pipe fittings are often used:
Potable Water Distribution Systems
Malleable iron is compatible with drinking water and withstands water hammer well.
Compressed Air Systems
Its strength and vibration damping allow malleable iron to handle compressed air/gas applications.
Sprinkler Systems
Threading makes installation simple while corrosion resistance maintains flow long-term.
Gas Piping Systems
Transporting natural gas, propane etc. as malleable iron withstands corrosion from some fuels.
Irrigation Systems
Threads join easily outdoors and material stands up to weather/chemicals used in agriculture.
Boilers and Furnaces
Can connect supply and return piping carrying heated water/steam in commercial HVAC systems.
Plumbing Systems
Carrying water and waste in commercial buildings as threading speeds repairs/modifications.
Oil/Petroleum Transport
Capable of handling hydrocarbon fuels with thread sealing.
Swimming Pools
Chlorine resistant malleable iron fittings connect piping involved in pool filtration/treatment.
The threading, corrosion resistance and strength of malleable iron make it well-suited for underground and commercial piping applications.
