H71X对夹式消声止回阀

H**1X消声止回阀

ZHYH46微阻缓闭蝶形止回阀

Y型快闭止回阀

YQ98004过滤活塞式缓闭止回阀

H74H（X）对夹圆片式止回阀

H**4X（SFCV）橡胶瓣止回阀

HH46X、HH48X、HH49X微阻缓闭止回阀

HH47X微阻缓闭消声止回阀

HH44X微阻缓闭止回阀

H76对夹蝶形止回阀

H72Y对夹式高压止回阀