The installation of a strainer ahead of the backflow preventer is recommended to prevent fouling of the check assembly and resultant spillage from the valve during repressurizing.
建议在防 回流阀前安装一个 过滤器,防止止回阀受到污染和阀门在再增压期间出现泄漏或溢出。
2
At present, the development and production of the main products are butterfly valve, checkvalve, gate valve, ball valve, strainer valve, globe valve, slurry valve, diaphragm valves and so on.