Product Overview 
 SP45 digital lock balance valve is a modulating valve has a digital lock to special functions, DC-type valve structure, with the percentage flow characteristics better, etc., to a reasonable allocation of traffic, effective solution to heating (air conditioning) systems Enthusiasm problems exist in room temperature. Able to accurately adjust the pressure drop and flow to improve the state of fluid flow in the pipe network system, to achieve fluid balance and energy savings of the pipe network. Has a valve opening degree indication, opening locking device for flow measurement manometric valve, as long as the appropriate specification of the balance valve fitted in each branch and user entry lock and intelligent instrument-specific one-time debugging, the The total amount of water of the system is controlled within reasonable limits, to overcome the "big flow, small temperature difference between the irrational phenomenon. The product is the ideal product in the heating system. SP45 balancing valve can be installed in the water supply pipe, can also be installed in the return pipe, generally we recommend that you install in the return pipe, especially for high temperature loop, to facilitate debugging, to be installed in the return pipe, installation balancing valve for (back) pipes do not have to set the cut-off valve. 

 Technical parameters 
 Nominal pressure: 1.6MPa 
 Suitable temperature: 0 ~ 120 ° C 
 Suitable medium: water, oil, non-corrosive liquids 
 Flange Standard: GB / T-17241.6 GB / T 9113 
 Test standard: GB / T 13927 to API598 

 The main components 

 Parts and the name of the valve body, bonnet stem valve gasket 
 Material gray cast iron, ductile iron, cast steel, stainless steel, ductile iron paronit 

 The main external connection size 

 SP45F 
 Flange DN 32 40 50 65 80 100 125 150 200 250 300 350 400 
 L 180 200 230 290 310 350 400 480 550 622 698 787 850 
 H-230 242 250 260 329 340 424 454 517 573 617 705 810 




 SP45 (SP) digital lock balance valve connection size table 

 DN (mm) L H D D1 h of N- 
 20 silk 100 102 Rp3 / 4 
 25 silk 120 115 Rp1 
 32 180 130 135 100 67.5 4-φ14 
 40 205 140 145 110 72.5 4-φ18 
 50 240 195 160 125 80 4-φ18 
 65 275 220 180 145 90 4-φ18 
 80 290 230 195 160 97.5 8-φ18 
 100 335 260 215 180 107.5 8-φ18 
 125 390 290 245 210 122.5 8-φ18 
 150 430 330 280 240 140 8-φ23 
 200 495 530 335 295 167.5 12-φ23 
 250 622 560 405 355 202.5 12-φ25 
 300 698 590 460 410 230 12-φ25 
 350 787 780 520 470 260 16-φ25 

 SP45 (SP) digital lock full circle balancing valve flow coefficient table 


 123,456,789,101,112 
 15 0.16 0.37 0.87 2 
 20 0.28 0.64 1.52 3.5 
 25 0.36 0.82 1.91 4.5 
 32 0.96 1.82 3.58 7.1 14 
 40 1.71 3.25 6.4 12.7 25 
 50 2.97 5.17 9.15 16.5 2150 
 65 5.1 8.29 14.36 22.24 35.78 5895 
 80 7.56 12.24 21.27 32.7 52.72 85.4 140 
 100 10.7 15.65 22.84 33.26 48.3 70.3 102 147.7 220 
 12517 24.9 36.3 52.9 76.8 111.8 162.5 235 350 
 150 21.1 27.9 38 49.8 64.9 87.8 115.9 153,209,267,356,480 
 200,445,879,104,135 183 241 320 435 569 741 1000 
 250 57.2 75.5 103 135 176 238 314 416 566 740 963 1300 
 30,088,116,158,208 270 336 482 640 870 1138 1 482 2000 
 350,119,157,214,280 365 494 652 862 1174 1537 2000 2700 
 400,154,203,278,363 473 640 845 1119 1522 1992 2 593 3500 
 450,250,330,450,592 770 1043 1374 1824 2480 3 243 4224 5700 
 500,308,406,553,728 945 1281 1687 2240 3045 3983 5 187 7000 
 600 445 586 798 1050 1364 1848 2434 3232 4394 5 747 7484 1010 0