帶固定軸和雙座的雙金屬硬座球閥設計用於泵控制、流量控制、高壓差排放、主管路關閉等。
為用戶節約大量水能，並在高差壓節流下保持穩定。

Bimetal hard seated ball valves with fixed shaft and double seats are designed for use in pump control, flow control, high differential pressure venting, main line closure, etc.
Saves a lot of water energy for users, and their stability under high differential pressure throttling.