Features a modular design concept which facilitates complete maintenance and assembly by retaining the spring load . first and second check valve spring modules are not interchangeable 特点在于模块设计概念,通过保持弹簧负载促使日常维护和总成的完善。第一和第二止回阀弹簧模块不能互换。
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。