The 775QT Series features a modular design which facilitates maintenance and assembly by retaining the spring load. Check modules are threaded into the valve adapter for leak proof operation.

• 775QT系列特点是模块化结构，通过保留弹簧负载简化维护和组装。止回阀模块通过螺纹旋进阀门适配器内，提供无泄漏运行。