700X泵控制阀

The main valve comprises valve body, diaphragm, stem assembly, and seat. The valve is separated by diaphragm into two chambers, up and down. The upper chamber is control chamber, and down chamber is flow through chamber. The valve stem is driven by diaphragm up and down, and driven force comes from the differential pressure taken by two sides of diaphragm. The 700X pump control valve is a kind of check valve intended for installation at outlets of pumps in high-rise buildings and other water supply systems to prevent reverse flow of the medium. When the pump is about to stop water supply, the valve first shuts off slowly by about 90% so as to avoid water hammer caused by the sudden shutdown of the pump. When the pump comes to a complete stop, the valve then shuts off completely so as to prevent the reverse flow of water pumped out. This can effectively protect the pump and avoid the reverse rotation caused by the impact of reverse flow. This product is an indispensable protective device at outlets of pumps. It has a streamlined design, can realize precise turning on/off through guidance and is controlled by the solenoid valve. Furthermore, our pump control valve is safe, reliable, effectively avoids water hammer, boasts a long service life and is easy to install and maintain. Specifications: 1) Pressure rating: PN10. PN16. PN25/Class150 2) Size range: DN20mm-DN800mm (3/4" ¨C 32") 3) Test and inspection: GB/T 13927, API598