STRUCTURE PERFORMANCE:
1. Short length structure.
2. Small volume and light weight.
3. Quick closed by the disc,smalll pressure of hammer blow.
4. It can be used in horizontal pipeline or vertical pipeline,and also has convenient mounting.
5. Nice flow channel and small fluid resistance.
6. Yare acting and best sealing.
7. Integral structure,simple and compact,beautiful sculpt.
8. Long life of using,high reliability.