③在铭牌注明的弹簧工作压力级范围内，通过旋转调整螺杆改变弹簧压缩量，即可对开启压力进行调节。④在旋转调整螺杆之前，应使阀进口压力降低到开启压力的90%以下，以防止旋转调整螺杆时阀瓣被带动旋转，以致损伤密封面。R901118402DBE10-5X/50YG24K4VR900249388DBE10-5X/50YG24NK4MR901055383DBE10-5X/50YG24NK4VR900552414DBE10-5X/50YG24NZ4MR900532752DBE10-5X/50YG24NZ4VR900533394DBE10-5X/50YG24Z4MR900560214DBE10-5X/50YG24Z4VR900435644DBE10G-3X/100YG12Z4R900407699DBE10G-3X/100YG24Z4R900616437DBE10G-3X/200YG24NK4MR900411372DBE10G-3X/200YG24NZ4R900464660DBE10G-3X/200YG24Z4R900497183DBE10G-3X/50YG24NZ40811402109DBE10X-1X/180G24-8NZ4M0811402111DBE10X-1X/250G24-25NZ4M0811402110DBE10X-1X/315G24-8NZ4M0811402108DBE10X-1X/80G24-8NZ4M)