●Straight-through type: one-way sealing and eccentric structure, the ball is separated from the valve body when opened, and the flow channel is straight, and there will be no jamming and blockage.                

●Light switch: the spherical surface is separated from the sealing seat when opening and closing, without any contact, small torque, and flexible rotation. The shear effect between the hemispherical valve and the valve seat during opening and closing can scrape off the scale and adhesion on the sealing surface, and can keep the seal tight.

●The eccentric structure enables the sealing surface to automatically compensate for wear (note: in order to obtain wear compensation, the limit of the driving device must be adjusted), so as to maintain the sealing performance of the valve, with long service life, safety and reliability.

●The valve belongs to the hard sealing structure, the sealing pair is wear-resistant ceramic, with high hardness (about HRC88) and scratch resistance and wear resistance.