Unique valve seat sealing structure: the floating ball valve adopts the lip type elastic seal ring structure design to ensure the reliability of sealing. For low pressure, ultra-low pressure or vacuum; The positive ball valve adopts a leaf spring loaded valve seat sealing structure, which can ensure the long-term and reliable sealing of the ball valve. The valve seat material of medium and high temperature ball valves can be polystyrene or metal.

The liquid flow rate can be selected in the range of 1~10m/s when the electromagnetic flowmeter is in full flow. In principle, the upper limit flow rate is unlimited, and it is recommended not to exceed 5m/s. If the lining material can withstand the erosion of liquid flow. The lower limit of flow rate of full flow is generally 1m/s, and some models of instruments are 0.5m/s.