II. FEATURES: 

Shot-blasting 
protective surface finished by shot-blasting and the surface is smooth and neatness. 
Flatting seat 
Smooth continuous bore way without seating recess, it is not easy to get impurity pilled up. 
Making the liquid straightway. 
Treating with rubber 
Both inner and outer are coated with advanced knowledge of rubber vulcanization to the elasticity of rubber, and making sure the exact geometry dimension. Rubber and ductile cast iron valve are together hardly. This can avoid fall-off for long-term use. 
Anti- corrosion 
Both inner and outer are coated with non-toxic powder epoxy resin to strengthen the capacity of Corrosion resisting and raise the quality of water supply. 
Ruggedization 
The older ductile iron valve is easy to rupture after being impacted by nonego. It can stop 
rupture depend on the good mechanics capability of ductile iron . 
Three “.” sealed ring 
With the three “.” – rings, the leakage can be greatly reduced and the “O” – ring can be 
replaced under this condition with pressure and without stopping water. The thrust axletree 
reduces the frictional resistance and lowers the operational torque. And it can be switch seal 
ring without opening and closing. 
Rigid round body 
The body is founded minutely, the rigid geometry size ensure inner sealing of valve without any process. 
Light weight 
This body is made of ductile iron, it is 20%-30% lighter than the olds. Easy to fix and serve.