Blocking and draining

When the valve is closed，the seat ring on the sides of upstream and

downstream makes the fluid cut off and the matters built up inside of the mid-

cavity can be d rained The drainer acts

as below：

Can check if the seat ring leaks and gets injured in advance；

Reduce the pollution to the valve at the medium replacement；

When the valve is full opened or closed under the work pressure，can replace

both stem and packing

box(The drainer shown in the figure is a sewage cork)

Automatic pressure discharge

When an abnormal pressure rise occurs with the medium built up in the mid-

cavity of the valve due to a rising temperature，the safety valve set on the

seat ring or the body can automatically discharge the pressure

Completely sealed

The unique way of sealing with the ball valve makes the fluid completely cut

offFire prevention structure To prevent the fire from extending in case of a fire

or when the seat ring is made softened and burntby an abnormal

temperature rising，the valve can still be reliably operaled and the seat ring

support can contact with the ball to produce an instantaneous sealing，

conforming to API607 The aperture of the valve is identical to the inner

diameter of the pipeline，convenient for cleaning the atter