English
Municipal projects feature large volumes, deep burial and long service life, demanding fittings with high strength, long durability and settlement resistance. Urban water-supply networks must withstand pressure fluctuations and secondary-supply demands — select the corresponding pressure class per standard. Road drainage calls for fittings resistant to compression and acid/alkali corrosion. Landscape irrigation networks are smaller in diameter with many branches, favoring tees and valves with fast, reliable connection and sealing. Buried fittings must be fully seated and sealed to prevent joint leakage that could cause roadbed settlement. Municipal acceptance commonly requires batch sampling inspection and test reports — confirm the products meet local standards at purchase and retain complete quality documentation for handover and long-term maintenance.
