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Pressure reducing valves are commonly used in water distribution systems, gas pipelines, and steam systems to protect downstream equipment and processes from damage due to excessive pressure. They are also used in fire protection systems, heating and cooling systems, and pneumatic systems to regulate pressure and ensure the proper operation of these systems.. Pilot-operated valves use a pilot control system to regulate the pressure, while direct-acting valves use a diaphragm or piston to control the opening of the valve
صمام
صمام تخفيض الضغط. Balanced valves use a combination of forces to maintain a constant pressure downstream.

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In addition to its musical significance, the interval also plays an important role in the cultural and spiritual life of many communities in the Middle East and North Africa. In Sufi music, for example, the interval is seen as a way to connect with the divine and achieve a state of spiritual ecstasy. The pauses and rests in the music are seen as moments of stillness and contemplation, allowing the listener to transcend the physical world and experience a deeper sense of connection with the divine.

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