Valve spare parts procurement project of a municipal engineering in Beijing

On September 7, 2021, Yaoxin valve won the bid for a municipal nominal valve spare parts procurement project in Beijing, which mainly purchases butterfly valves, gate valves, globe valves, check valves, etc

The butterfly valve has obvious advantages in the first-class municipal administration, including small volume, simple structure, convenient, rapid and labor-saving opening and closing, reliable sealing and good adjustment performance.

The main advantages of the gate valve in the first-class municipal administration are: small installation length, no directionality; The medium flow resistance is small when it is fully opened; Good sealing performance; The processing is complicated, and the sealing surface is not easy to repair after wearing. When the pipe diameter dn>50mm, the gate valve should be selected.

The main advantages of the check valve in the first-class municipal administration are that the check valve is permanently located at the outlet of the water pump, the outlet pipeline of the steam trap and other places where the reverse flow of fluid is not allowed.

The main advantages of the stop valve in the first-class municipal administration are: the stop valve is mainly used to cut off the medium path, and can also adjust the flow and pressure. (attention shall be paid to directionality during installation, i.e. low in and high out, and reverse installation is not allowed. Stop valve shall be selected when pipe diameter DN ≤ 50).

The valve body and valve plate are made of nodular cast iron, the valve stem is made of stainless steel, and the butterfly valve is made of stainless steel embedded valve stem.

The nut is made of cast aluminum brass or cast aluminum bronze, and its hardness and strength are greater than that of the valve stem. Considering that the water quality will not be affected, the selection of materials and sealing materials shall comply with the sanitary standards for drinking water, that

Through this municipal engineering valve project, our company has some experience in municipal construction and has enough confidence in valve material selection and model selection.