Johnson Controls valve production of dynamic balancing valve, mainly used for water flow control system, but also for medium flow control heating, air conditioning systems and other non-corrosive liquids. A one-time adjustment in the product before running the set value of the system can automatically constant flow requirements. Dynamic balancing valve consists of valve and automatic adjustment and manual adjustment valve of two parts, the system working fluid pressure P1, manually adjustable front and rear pressure valve respectively P2, P3. When the manual adjustment valve transferred to a certain position, i.e. artificially determine the "set flow rate", and the corresponding fixed (P2, P3 value). When the system flow rate increases, (P2, P3) of the actual value exceeds the allowable setpoint, then automatically adjusts the valve automatically shut small, to be set up to maintain traffic flow again, otherwise change course. Main materials: Body Valve cover: ductile iron, steel, stainless steel hand wheel material: steel, stainless steel valve material: brass, stainless steel main shape, size and performance parameters: