Adopt the standard

H42 H / Y/W-16 , 25 , 40

The use and characteristic:

This product designs making according to GB12235 standard strictly, one orients and makes sports of hoisting or lower along the centre in the valve, the bush is adopted wear-resisting and of good performance, the special material with small coefficient of friction is made, it is reliable that movements are flexible . It is of good performance to seal. The products are applied to petroleum , chemical industry , pharmacy , power industry ,etc. on the pipelines of different operating modes extensively.