Valve spool and seat is metal, or PTFE with metal sealing rotary valve, it combine the best control characteristics of ball valve and butterfly valve, can be used as control valve, but also cut off valve.

Main features:
（１）valve body with not any connector, not affected by channel or bolt stress. As valve is with no connector, so shell will not affected by pressure "mutations"

（２）with a Ｖ-type body, even the media is Low flow or high viscosity, can ensure the controlled accuracy

（３）Leak-proof and durable seat with cup-shaped or O-shaped sealing ring, seat is made of tungsten carbide cobalt of large area.

（４）when valve closed, between V-notch and seat, producing wedge-shaped shear function, then can clean itself and prevent the ball spool stuck, especially suitable for high viscosity, suspension, and paper pulp is not clean, with fiber fields