“Control the standard by the details, show the power by quality”. Our firm has strived to establish a extremely efficient and stable employees crew and explored an effective excellent command method for Wholesale Dealers of China DN500 Ductile Iron EPDM Seat Dual Plate Wafer Check Valve, We give priority to quality and customer satisfaction and for this we follow stringent quality control measures. We have in-house testing facilities where our products are tested on every aspect at different processing stages. Owning to latest technologies, we facilitate our customers with customized production facility.
“Control the standard by the details, show the power by quality”. Our firm has strived to establish a extremely efficient and stable employees crew and explored an effective excellent command method for China Check Valve, Dual Plate, We always insist on the principle of “Quality and service are the life of the product”. Till now, our goods have been exported to more than 20 countries under our strict quality control and high level service.
Product characteristics
1. The structure length of butterfly check valve with double lobes is short, and its structure length is only 1/4~1/8 of that of traditional flange check valve.
2. Small size, light weight, its weight is only 1/4~1/20 of the traditional flange check valve.
3. Fast closure of double-petal check valve disc with low water hammer pressure
4. Horizontal and vertical pipes can be used for easy installation.
5. Double-lobed butterfly check valve with smooth flow and low fluid resistance
6. Sensitive movement and good sealing performance
7. Double-disc butterfly check valve with short disc travel and low impact force
8. The whole structure is simple and compact, and the shape is beautiful.
9. Long service life and high reliability
Design drawings
Major Dimensions and Weights
PN(MPa) | DN(mm) | L | D | D3 | D2 | weight (kg) |
Diameter of center circle of bolt hole | Bolt quantity | Bolt diameter | Bolt Length L1 |
1.0 | 50 | 60 | 108 | 56 | 51 | 2 | 125 | 4 | M16 | 150 |
65 | 67 | 128 | 73 | 65 | 3 | 145 | 4 | M16 | 155 | |
80 | 73 | 142 | 88 | 80 | 4 | 160 | 8 | M16 | 160 | |
100 | 73 | 162 | 108 | 102 | 6 | 180 | 8 | M16 | 165 | |
125 | 86 | 192 | 132 | 127 | 8 | 210 | 8 | M16 | 180 | |
150 | 98 | 218 | 160 | 152 | 13 | 240 | 8 | M20 | 205 | |
200 | 127 | 273 | 210 | 203 | 24 | 295 | 8 | M20 | 235 | |
250 | 146 | 328 | 266 | 254 | 37 | 350 | 12 | M20 | 255 | |
300 | 181 | 378 | 310 | 305 | 50 | 400 | 12 | M20 | 290 | |
350 | 184 | 438 | 355 | 350 | 76 | 460 | 16 | M24 | 295 | |
400 | 191 | 489 | 405 | 400 | 110 | 515 | 16 | M24 | 310 | |
450 | 203 | 539 | 455 | 450 | 135 | 565 | 20 | M24 | 325 | |
500 | 219 | 594 | 505 | 500 | 158 | 620 | 20 | M24 | 345 | |
600 | 222 | 696 | 605 | 600 | 320 | 725 | 20 | M27 | 355 | |
700 | 305 | 811 | 700 | 695 | 380 | 840 | 24 | M27 | 440 | |
800 | 305 | 918 | 800 | 796 | 560 | 950 | 24 | M30 | 450 | |
900 | 368 | 1018 | 903 | 898 | 640 | 1050 | 28 | M30 | 520 | |
1000 | 432 | 1124 | 1055 | 1050 | 900 | 1160 | 28 | M33 | 590 | |
1200 | 524 | 1340 | 1205 | 1200 | 1400 | 1380 | 32 | M36 | 695 |