1. The diversity of body materials, cast iron, ductile iron, cast steel, forging steel and lining a variety of different materials. 2. Lining materials are: Glass ETFE PFA PVDF Halar rubber can also be processed according to the needs of special materials. 3. Variety of the diaphragm 4. Unique bonnet patented design so that the diaphragm to avoid tight, the pressure is too large, so that the diaphragm in normal working condition. 5. Can be online maintenance, reduce maintenance costs and working hours, to provide you with more convenient. 6. The bonnet is completely separated from the fluid to avoid fluid corrosion and make the valve more safe and reliable. 7. No shaft leakage, to avoid leakage of the central axis of conventional valves. 8. Diaphragm seal to ensure zero leakage valve. 9. Different lining fluorine materials and coating materials to meet your needs of different media. 10. Diaphragm valve is also suitable for use in vacuum conditions. 11. Diaphragm valve with self-discharge function to ensure no residue, so that the pipeline cleaner and more hygienic.