摘要:OPTIMASI DIAMETER PIPA PADA SISTEM JARINGAN AIR BERSIH DENGAN MENGGUNAKAN LINEAR PROGRAMMING DI KECAMATAN TUREN MALANG Rega Putra Permana1, Chairil Saleh2 1,2Jurusan Teknik Sipil Fakultas Teknik – Universitas Muhammadiyah Malang Alamat korespondensi : Jalan Raya Tlogomas 246 Malang 65144 ABSTRACT Turen districts is one of 33 districts in Malang regency. Located ± 16 km east of the capital city of Malang (Kepanjen) and ± 26 km south of Malang. One of the factors that determine the level of performance of the system of providing clean water is effectiveness network.Results of the evaluation of the performance of a network of water pipes are clean before it shows that the relative energy level at each node the pipe showed a huge difference Linear programming is a method which is very popular and reliable in solving optimization problem that contain linear function.Besides the simplicity of its functions, the ease factor in solving the equation system makes the linear programming more interesting to be applied in solving various optimization cases. This project to find out the level of linear programming to solving optimization problems diameter pipelines in the water distribution system.The results of the analysis Indicates that the model linear programming is quite consistent and can provide optimum solutions appropriate objective function and constraint functions of the set. Keywords: linear programming, diameter, pipe networks, optimization.