(1) Linear flow characteristics That is, the flow rate and the opening degree are substantially linear in the case where the pressure difference between the valve and the front is constant; (2) have accurate opening indication (3) Open locking device Non-management personnel can't change the opening degree casually; the table connection can conveniently display the pressure difference before and after the valve and the flow rate through the valve. Although the balancing valve has many advantages, it still has many problems in the application of the air conditioning water system. If these problems are not solved well, the characteristics of the balance valve are not fully apparent. The function of the balancing valve is to regulate the predetermined flow rate of each distribution point (such as each building) within the system. A balancing valve is installed at the entrance to each building to allow a reasonable distribution of the total flow of the heating system. Buffing Wheels ,Buffing Wheel For Drill,Buffing Wheel For Grinder,Polishing Wheel For Drill,stainless steel buffing wheel NINGBO HENGHUA METAL SURFACE TREATMENT TECHNOLOGY CO.,LTD. , https://www.henghuametal.com