Based on the type, usage and the circumstances in which a dam is located, various kinds of gates and passages are essential e.g. spillways, outlet gates, intake, etc.

	Above all, state-of-the-art hydraulic systems and controllers are required for the gate structure to act properly.

	Furthermore, hydraulic and control systems will have different key applications in hydroelectric power plants constructed next to dams. This being inevitable due to construction of these closely connected structures.

Narvan Arra has an excellent track record in providing hydraulic motion and control systems for operating and maneuvering various types of gates in major dam and hydroelectric power plants in Iran.

Acting in the capacity of Bosch Rexroth Group exclusive sales and service partner in Iran, we have provided a full spectrum of services which can range from highly specialized individual components through to planning and commissioning of complete systems.

We have arranged prototype tests, optimized the system according to customer’s specification, adapted interfaces, delivered complete factory-tested units and carried out installation and commissioning work for the major dams and hydro power plants in Iran

In addition, our services have included instructions and training, repairs under warranty, and the supply of genuine spare parts with the background of a big hydraulic supplier.

Dam Name Project Owner Gate Type Completion Karkheh Iran Water & Power Resources Development Company (IWPC) Spillway Intake Bottom Outlet 2002 Karun III Iran Water & Power Resources Development Company (IWPC) Spillway Radial Gates, Flow Compensation Outlet, Power House Intake, Orifice Spillway Service and Emergency Gates 2002 Shahid Abbaspour (Karun I) Khuzestan Water and Power Authority (KWPA) Power House (Extension) Intake Gates 1999 Masjed-e-Soleyman Iran Water & Power Resources Development Company (IWPC) Intake to Powerhouse & Powerhouse Extension, Flap Gates 2000, 2002, 2005 Marun Khuzestan Water and Power Authority (KWPA) Spillway Intake Bottom Outlet 1999 Kowsar Khuzestan Water and Power Authority (KWPA) Spillway 2003 Alborz Mazandaran Regional Water Company Bottom Outlet 2003 Raeisali Delvari Fars Regional Water Company Bottom Outlet 2006 Lavarak HEPP Iran Water & Power Resources Development Company (IWPC) Powerhouse Intake Gates 2005 Shahid Rajaei Mazandaran Regional Water Company Bottom Outlet 1996 Ahar (Satar Khan) East Azerbaijan Regional Water Company Bottom Outlet 1998 Alavian East Azerbaijan Regional Water Company Bottom Outlet 1996