The long term effect of hammer influenced in water pipe line (Case study: pipeline from Azadi to Hor)

r, it is vital for preserving water resource in each area. In the meantime, Iran has been in a state of inaccurate crisis due to the excessive withdrawal of water resources. Therefore, it is important to maintain water resources. And, the traditional methods of water transfer (using open channels and ...) are replaced by new methods such as the use of a water supply pipe. These methods, in addition to cost, have many technical benefits. Including increased transmission efficiency, reduced water waste, as well as saving passive defense principles.Meanwhile, the use of GRP pipes, in the last 40 years, has led to a dramatic increase. Although the life period of these pipes in the our country will reach 53 years, the efficiency of these engineering pipes has become more and more enriched, reaching its true position in the country.Due to the great efforts of the responsible and informed management of some manufacturers of these products in the country, the optimal use of this type of pipes is increasing. In this regard, Farassan Co., as the flagship of this industry, has made endless efforts to update and improve the quality of pipes, and has made significant progress. One of the most important points in the use of GRP pipes in comparison with other pipes is the lack of knowledge and awareness of some customers about these pipes and products, which is always a concern for employers and consultants. In this paper, in addition to the proper introduction of GRP Pipes and their use in comparison with other PIPES, it has been tried to discuss the control and monitoring the of the Water hammer in these types of products. In this regard, in the case of a water pipe line project from Azadi dam to the plain of Hor as one of the most important projects of water transportation in Iran, is briefly introduced and analyzed according to the details. Finally, a briefly studying about control and effect of the hammer phenomenon on the GRP pipes in special project is perfectly discussed.