Features: 1. Structure simple compact, the weight is light, 90' revolves, the switch is rapid 2. Designs reasonably, the assembling and dismantling is easy, to be advantageous for the service 3. Uses the eccentric structure, reduces the seal packing collar the friction, lengthens the valve service life 4. Completely seals, divulges for zero Materials: 1. Body:CI, DI, Carbon steel, etc. 2. Disc: DI, Carbon steel. 3. Shaft: Stainless steel. End connection: Flange Control Actuator: manual, electric, pneumatic Packing: Wooden with carton inside