This product is a new anti-water-hammer energy-saving product, with vertical or tilted valve seat, double offset butterfly plate, all-metal sealing pair or wear-resistant rubber sealing pair, overflowing components, channel fluid, oil pressure slow-closing device. It can be closed at fast/slow stages. This product has obvious energy saving effect in operation; When the pump is normal or the pump is stopped due to sudden power failure, it can effectively prevent water backflow and destructive water hammer. The product can be widely used in petrochemical, electric power, metallurgy and urban water supply and drainage pipe systems.

This series of products fill several blanks in the domestic market, and have a number of patent properties.

1.The butterfly plate is double offset structure. The opening and closing of the valve is reasonable.

2.All-metal sealing pair and wear-resistant rubber sealing pair are adopted, which have long service life and are maintenance-free and replaceable.

For the structural elements of valve chamber related to flow resistance characteristics, the principle of fluid mechanics is applied to determine their geometric elements, flow resistance and energy saving.

4.Good close performance of the valve can effectively prevent the occurrence of destructive water hammer.

5.Flexible and unblocking of the opening and closing of the butterfly plate/shaft.

6.The selection of the material of the friction pair, pairing, and the design of the sealing structure form and the installation location can guarantee that the butterfly plate/valve shaft and other rotatable parts can maintain good rotation performance after long-term use. 

7.The design of this series of products follows the "man-machine" engineering principle: The simplicity, accuracy and safety of operation of users, and maintenance of good product performance shall be overall considered as a system.

For example: The oil cylinder is equipped with a transparent oil cup, so as to quickly and accurately understand the level. The main precautions for the use of the valve are clearly marked with boards to be “directly” displayed to first-line operators, so as to ensure safe operation.

8.The structural length shall be subject to GB1221. If the structural length is short, the weight is light.