The Keystone AR1 Butterfly Valve, model series „AR1 ASTM-A NBR DN.4“, is a robust shut-off device for industrial use. Manufactured according to ASTM-A standards, it offers durability and reliability. The NBR sealing ensures good resistance to various fluids. With a nominal diameter (DN) of 4 inches (approximately 100 mm), this valve is suitable for applications with medium to large flow rates. It features a disc construction that allows for easy and precise flow regulation. The wafer design enables simple installation between flanges. Areas of application include general process industry, water treatment, and chemical plants. The NBR sealing makes it suitable for applications with water, air, and certain chemicals. Request a quote now and benefit from our quick availability.
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