• Brass couplings are most suitable for steel works, offshore, inks and dyes and tank water waste     because o its resistance to salt and water.
• Stainless steel couplings are widely used in food, brewery, chemical & pharmaceutical plants,     where    high quality hygienic fittings are required.
• Aluminium couplings are mainly used in water irrigation, oil, petroleum, flight refueling and solid     transfer applications.