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Lower Pressure Swing Check Valve For Domestic Sewage / Seawater / River Water
Notice: the nominal diameters DNand flange bolt hole distance D1,hole number, hole diameter etc.
In this table can be designed based on the demand of the customer.
Take * number specification for non-standard products.
1.Caliber side: round DN300mm~2000mm square 300mm~3000mm |
2.Working medium: with a ph of industrial, domestic sewage, seawater, river water, with a weak acid alkali industry, domestic sewage, seawater |
3.Working temperature : ≤60°C, and according to use requirement , the maximum temperature resistance of flap valve can be designed to reach 100°C |
4.Working pressure : normal pressure to 0.25Mpa |
5.Seal type :lip-shape seal , hollow round pipe seal |
6.Open angle of flap valve cover : >75° |
7.Open when the water level inside flap valve cover is higher than outside water level by 50mm~250mm ( related to flap valve obliquity , weight and caliber size ) , and it can be designed according to the demand of the customer. |
8.hardness : ≥40 |
9.Specific gravity: 1.6~1.9 |
10.Use life: more than thirty years |
Model | DN | D | D1 | L | b | d | n-c |
KQ-HDPE-Y-4-0.25-300 | 300 | 440 | 400 | 300 | 30 | 23 | 8-M16 |
KQ-HDPE-Y-4-0.25-400 | 400 | 560 | 515 | 350 | 30 | 23 | 8-M16 |
KQ-HDPE-Y-4-0.25-500 | 500 | 670 | 620 | 400 | 35 | 23 | 8-M16 |
KQ-HDPE-Y-4-0.25-600 | 600 | 780 | 725 | 450 | 35 | 23 | 10-M16 |
KQ-HDPE-Y-4-0.25-700 | 700 | 895 | 840 | 450 | 40 | 23 | 12-M16 |
KQ-HDPE-Y-4-0.25-800 | 800 | 1010 | 950 | 500 | 40 | 280 | 12-M16 |
KQ-HDPE-Y-4-0.25-900 | 900 | 1110 | 1050 | 500 | 45 | 28 | 14-M18 |
KQ-HDPE-Y-4-0.25-1000 | 1000 | 1220 | 1160 | 550 | 45 | 28 | 14-M18 |
KQ-HDPE-Y-4-0.25-1100 | 1100 | 1320 | 1260 | 550 | 50 | 28 | 16-M18 |
KQ-HDPE-Y-4-0.25-1200 | 1200 | 1450 | 1380 | 600 | 50 | 28 | 16-M18 |
KQ-HDPE-Y-4-0.25-1300 | 1300 | 1560 | 1485 | 600 | 55 | 28 | 18-M18 |
KQ-HDPE-Y-4-0.25-1400 | 1400 | 1675 | 1590 | 650 | 55 | 28 | 18-M18 |
KQ-HDPE-Y-4-0.25-1500 | 1500 | 1775 | 1690 | 700 | 60 | 28 | 20-M18 |
KQ-HDPE-Y-4-0.25-1600 | 1600 | 1915 | 1820 | 750 | 60 | 32 | 20-M22 |
KQ-HDPE-Y-4-0.25-1700 | 1700 | 2015 | 1870 | 800 | 65 | 32 | 22-M22 |
KQ-HDPE-Y-4-0.25-1800 | 1800 | 2115 | 2020 | 850 | 65 | 32 | 22-M22 |
KQ-HDPE-Y-4-0.25-1900 | 1900 | 2220 | 2135 | 900 | 70 | 32 | 22-M22 |
KQ-HDPE-Y-4-0.25-2000 | 2000 | 2325 | 2230 | 950 | 70 | 32 | 22-M22 |
Swing Check Valve Application:
Valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of medium will bring the result of opening and closing automatically.
When the medium is back-going, valve disc will automaticaly closed to avoid accidents.
material: | |||
NO | parts | qty | material |
1 | body | 1 | 316 |
2 | O-ring | 2 | EPDM |
3 | disc | 1 | 316 |
4 | O-ring | 1 | EPDM |
5 | eye bol | 1 | 316 |
6 | small cover | 2 | 316 |
7 | pin | 1 | 316 |
8 | retainer screw | 2 | 316 |
9 | big cover | 2 | 316 |
10 | bolt | 2 | 316 |
11 | spring | 1 | 316 |
◆deminsion:
DN | PN10.PN16 | PN25 | PN40 | ||||||||||||||||||
A | B | C | D | E | L | G | A | B | C | D | E | L | G | A | B | C | D | E | L | G | |
40 | 94 | 16 | 22 | 81.4 | 25 | 195 | 0 | equal PN10 | equal PN10 | ||||||||||||
50 | 109 | 16 | 32 | 94 | 33.6 | 208 | 1 | ||||||||||||||
65 | 129 | 17 | 40 | 111 | 46 | 230 | 2 | ||||||||||||||
80 | 144 | 17 | 54 | 123 | 56.5 | 245 | 3 | ||||||||||||||
100 | 164 | 18 | 70 | 147 | 71.4 | 265 | 3 | 168 | 18 | 70 | 149 | 71.4 | 269 | 3 | Equal PN25 | ||||||
125 | 195 | 18 | 92 | 171 | 87.3 | 297 | 5 | 194 | 18 | 92 | 171 | 87.3 | 296 | 5 | |||||||
150 | 220 | 20 | 112 | 200 | 106.6 | 321 | 5 | 224 | 20 | 112 | 202 | 106.6 | 325 | 5 | |||||||
200 | 275 | 22 | 154 | 256 | 148.2 | 376 | 5 | 284 | 22 | 154 | 265 | 148.2 | 385 | 5 | 291 | 22 | 154 | 268 | 148.2 | 392 | 5 |
250 | 331 | 26 | 192 | 302 | 185.2 | 436 | 6 | 342 | 26 | 192 | 307 | 185.2 | 447 | 6 | 353 | 26 | 192 |
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