Form by sealing points: (1) mandatory sealing butterfly valve. 1) elastic sealing butterfly valve. Sealing pressure when the valve is closed by the valve plate squeeze resilient seat, seat or valve plate production. 2) applied torque sealing butterfly valve. Sealing pressure generated by the applied torque to the valve shaft. (2) pressurized sealing butterfly valve. Sealing pressure seal or valve seat by playing board member pressurized components produced. (3) self-sealing valve. Sealing pressure is automatically generated by the media pressure. Butterfly has a simple structure, small size, light weight, material consumption province, small installation size, switch quickly, 90 ° reciprocating rotary valves Tanggu, driving torque characteristics of small Tianjin Tanggu valve, used to cut, turn, regulate pipeline medium, having good fluid sealing properties and off control characteristics. Butterfly can carry mud accumulation of fluid in the pipe mouth least. Under low pressure, can achieve a good seal. Regulation performance. Disc streamlined design, the fluid resistance loss, can be described as an energy-saving products. Hangzhou Tanggu Valve | Tanggu valve | valve provided by the Hong Kong Ming Ming Port Valve Co., Ltd., Dongguan. Port Valve Co., Ltd., Dongguan Ming (www.gdmgfm.com) strong, credible, butterfly and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the next port of the valve and you hand into the brilliant, for a better future!