### Steel butterfly valve, size 1 inch to 8 inches\r\n### with pneumatic actuator and electro positioner\r\n\r\n\r\n### Keystone Butterfly Valves\r\nManufacture Under License: Taiwan\r\n\r\n### NORBRO Pneumatic Actuator\r\nOrigin: England\r\n\r\n### SAMSON Electropneumatic positioner 3730-2\r\nOrigin: Germany\r\n\r\nShipping nationwide\r\nContact for price inquiry and purchase.\r\n\r\n### What is a butterfly valve?\r\nButterfly valve is a type of control valve that uses a circular or butterfly-shaped plate as a control element. This circular plate is opened or closed and controls the flow of liquid or gas. Butterfly valves are used in many industries due to their simple structure and reliable performance.\r\nThe features of the butterfly valve are:\r\n1. Simple structure: These valves use a circular plate known as an impeller as the control element.\r\n2. Small volume and light: compared to many other types of valves, they have a smaller volume and are lighter compared to other valves.\r\n3. Quick and easy flow control: Due to the impeller structure, these valves open and close quickly, which provides quick flow control.\r\n4. Precise control in large flow: For large flow of liquids and gases, the butterfly valve provides precise control.\r\n5. Relatively low cost: they are usually made of affordable materials that reduce their production and maintenance costs.\r\nThe use of butterfly valves is very common in various systems including oil and gas industries, chemical industries, water supply and sewage, and heating and air conditioning systems.\r\n### What are the uses of butterfly valve?\r\nButterfly valves are widely used as a control tool in various industries. Some of its main uses are:\r\n1. Oil and gas industries: in pipelines and oil and gas transportation equipment for flow control.\r\n2. Chemical industries: to manage the flow of chemicals in production processes.\r\n3. Water and sewage supply: in water and sewage distribution networks to control and manage water flow.\r\n4. Food industry: in food production and cooking lines as a tool to control the flow and production processes.\r\n5. Heating and Air Conditioning Systems: In heating, air conditioning and mechanical ventilation (HVAC) systems to control air flow.\r\n6. Paper industry: It is used in paper production lines to control the flow of materials.\r\n7. Mineral industries: in mines and mineral extraction processes for flow management.\r\nThe use of a butterfly valve is a popular control tool in these industries due to its simplicity of structure, lightness, fast controllability, and relatively low cost.\r\n### What is a pneumatic actuator?\r\n\"Pneumatic actuator\" is a device that uses the power of compressed air or gas to create mechanical movement in a mechanical or industrial system. These actuators are usually used to change the position or move different components in automation and control systems.\r\n\r\nPneumatic actuators from
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