China Shanghai Enine Corporation

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Self Balancing Valve

ZLF

This is such a valve as using the self pressure variation to realize self control while keep the flow through this control system unchanged. With a flow indication, it is easily adjusted and suitable for the flow control of heat supply, air-conditioning etc. non-corrosive media. Through once adjustment before running can get the system's flow automatically constant at the required set value.

Self Balancing Valves
Self Balancing Valves
Model PN(MPa) Casing test pressure Working temperature Medium used
ZLF-16 1.6 2.4 MPa 0~100 Water oil etc. non-corrosive media
Self Balancing Valves
Self Balancing Valves

ZL47F

ZL47F Self Balancing Valve consists of an automatically adjustable disc and a manually adjusted disc and uses the medium's self pressure variation as the power to automatically adjust the balance of the flow of each branch pipeline and accurately stabilize the flow, and also has the functions of opening index, locking and closing, suitable the flow control of heat supply, air-conditioning etc. non-corrosive media. Through once adjustment before running can get the system's flow automatically constant at the required set value.

The figure below shows the curves of the flow performance of several valves, of which one of an equal percentage performance is made in my company. It can get known one equal variable rate with the opening makes the variable rate of flow equal, which features by the bigger the opening, the bigger the flow while the smaller the opening the smaller the flow. Most of the application in engineering is do neat a big flow, so this equal percentage valve is just suitable for this requirement.

Curves of Self Balancing Valves

Dimensions (mm) of ZLF

DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
L 110 110 115 160 200 215 230 275 290 310 350 430 520 635 670
D 95 105 115 135 145 160 180 195 215 245 280 335 405 460 520
D1 65 75 85 100 110 125 145 160 180 210 240 295 355 410 470
D2 45 55 65 78 85 100 120 135 155 185 210 265 320 375 435
H1 72 72 81 108 138 138 143 170 193 208 254 289 325 357 372
H2 70 70 74 91 147 147 154 189 211 227 260 303 367 430 495
Flow control range (m3/h) 0.1~1 0.1~ 1.5 0.2~2 0.5~4 1~6 2~10 3~15 5~25 10~35 15~
50		 30~
80		 40~
180		 100~300 150~1500 200~700

Dimensions (mm) of ZL47F

DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350
D 95 105 115 135 145 160 180 195 215 245 280 335 405 460 520
D1 65 75 85 100 110 125 145 160 180 210 240 295 355 410 470
L 110 110 115 160 200 215 230 275 290 315 350 430 520 635 670
H1 122 122 137 182 191 197 205 259 268 334 357 407 452 486 555
H2 70 70 74 91 147 147 154 181 211 227 260 303 367 430 495
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