Stainless steel ball valve just needs turning 90 degree and small turning torque to achieve in full close. Full port of stainless steel ball valve makes its flow resistance very small. The main features of the stainless steel ball valve are compact structure, easy operation and repair. Stainless steel ball valve cannot be only applicable to water, solvent, acid and natural gas, but also appliable to oxygen, methane and polythene. Stainless steel ball valve can be integral and combined structure. Stainless steel ball valve should be mounted onto the pipeline horizontally. Stainless steel ball valves can be divided into stainless steel pneumatic ball valve, stainless steel motorized ball valve and stainless steel manual ball valve. Stainless steel ball valves can be divided into s.s.304, s.s.304L, s.s.316 and s.s.316L ball valve.