### Selling all kinds\r\n### GATE VALVE\r\n### NEEDLE VALVE\r\n### Ball valve / gas valve BALL VALVE\r\n### SAFETY VALVE\r\n### PRESSURE REDUCING VALVE\r\n### PRESSURE REGULATING VALVE\r\n### BUTTERFLY VALVE\r\n### Knife valve\r\n \r\n### Body material stainless steel, carbon steel, cast iron and brass\r\nFrom reliable Iranian and foreign brands\r\n\r\n**Please contact us to purchase, inquire about the price and receive free advice.**\r\n\r\n----------------------------------------------------- ----------------------------------------------------- -----------------------\r\n### Know more:\r\n\r\n**### What is Shirfelke?**\r\nA check valve is a type of valve that has a special design and is used to control the flow of liquids in a pipe. This type of valve is in the form of an opening ring or disk that can be placed inside or outside the flow path.\r\nThe main feature of the valve is that it can be fully opened or closed and control the flow of liquids. These valves are usually used in cases where we need to control the flow accurately and completely stop the liquid flow.\r\nFlake valves are designed in two different ways, variable opening (V-port) or closing (circular-disc), each of which has its own characteristics and applications. These types of valves are used in various industries including oil and gas, chemical, water and sewage industries, and heating and cooling systems.\r\n**### What are the types of faucets in terms of efficiency?**\r\nFaucets are designed in different types, each with its own characteristics and applications. Some types of lionfish are:\r\n1. V-Port Valve: They have a V-shaped disc that can be rotated to control the flow. These types of valves are known as control valves with the ability to precisely adjust the flow of liquids.\r\n2. Circular-disc Valve: It has a circular disc that controls the flow of liquids by opening or closing it. This type is usually used for definitive control of fluid flow.\r\n3. V-Notch Ball Valve: They have a disk similar to a ball with a V-shaped slot. These types of valves are well suited for precise control of liquid flow.\r\n4. Multi-Stage V-Port Valve: It has several stages and disks of different sizes and shapes, which allows more precise control of liquid flow.\r\n5. Angle Seat Valve: It has an angular disc that can be rotated to control the flow. These types of valves are used as an effective solution to control one-way flow.\r\nEach of these types of valves are selected based on the needs and according to the specific consumption conditions.\r\n**### In which industries are valves used?**\r\nFlap valves are widely used in various industries due to their flow control features and precise adjustment capabilities. Some of the industries that take advantage of the valves are:\r\n1. Oil and gas industry: to control the flow of oil, gas and other liquids in oil and gas pipelines and equipment.\r\n2. Chemical industry: in the production and processing of chemicals as well as in H systems
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