1.Its material can be stainless steel, grey cast iron, carbon steel, nodular cast iron.

2.Its suited medium can be fresh water, sewage, sea water, air, steam, food, medicine, all kinds of oil and acid and so on.

3.It is very safe, reliable, high-performance and energy-saving.

4.It has passed ISO9000 Quality System Certification in 2000.

5.It has passed national patent.