Butterfly valve

Features:
　　 1. Simple structure, small size, light weight, small installation size.

　　 2. The sealing material has two types: soft and hard, which can be used in various working conditions, and has good sealing performance and long service life.

　　3. The butterfly valve with fireproof structure design can prevent the expansion of fire accidents. Once the soft seat of the butterfly valve catches fire and is damaged, the stainless steel metal sealing ring will play a role to keep the butterfly valve tightly sealed.

　　4. When the butterfly valve is fully opened, the flow resistance is small, and it can perform sensitive flow control when it is partially opened.

　　 5. The driving torque is small, the operation is simple and fast.

Technical standard

　　Design standards: API 609, ASME B16.34, GB/T12238, GB/T12224, JB/T 8527
　　Structure length: API 609, ASME B16.10, GB/T12221,
　　Connection standards: ASME B16.5, ASME B16.47, ASME B16.25, GB/T 9113, HG/T 20592
　　Inspection and testing: API 598, GB/T13927, JB/T9092, GB/T 26480
　　Fire test: API 607
　　Pressure and temperature rating: ASME B16.34, GB/T 12224
　　Main material: WCB, WC6, WC9, C5, CF8, CF8M, CF3, CF3M
　　Nominal diameter: NPS 1-1/2″～NPS 40″ DN40～DN3000
　　Pressure range: CL150～CL1500 PN6～PN25
　　Working temperature: -29℃～+425℃