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| Categories | Swing Check Valve | 
|---|---|
| Brand Name: | OEM | 
| Model Number: | GYP-4 | 
| Certification: | ISO 9001/ API 6D | 
| Place of Origin: | Shanghai , China | 
| MOQ: | 1pcs | 
| Price: | negotiation | 
| Payment Terms: | T/T advance or L/C at sight | 
| Supply Ability: | 90,000pcs per month | 
| Delivery Time: | 1usually within 35 days after received your payment | 
| Packaging Details: | Usually packing by plywood case suit for sea delivery | 
| Product Name: | Flap Vlave | 
| Application: | For Weak Acid And Alkali | 
| Size: | DN300 ~ DN3000 | 
| Pressure: | lower pressure | 
| Standard: | API / DIN / BS / EN / ISO / JIS | 
| Temperature: | 0~60 C | 
| Body: | Composite Materails | 
| Seat: | Composite Materails | 
| Company Info. | 
| Shanghai kangquan Valve Co. Ltd. | 
| View Contact Details | 
| Product List | 
Composite Materails Round Flap Valve By Swing Type Size From DN300 to DN3000
| 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 | 
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.
| 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 | 
| DN(size) | D | D1 | hole(n-d) | |
| DN300 | 12" | 440 | 400 | 12-23 | 
| DN400 | 16" | 560 | 510 | 16-27 | 
| DN500 | 20" | 670 | 620 | 20-27 | 
| DN600 | 24" | 780 | 725 | 20-30 | 
| DN700 | 28" | 895 | 840 | 24-30 | 
| DN800 | 32" | 1010 | 950 | 24-33 | 
| DN900 | 36" | 1110 | 1050 | 28-33 | 
| DN1000 | 40" | 1220 | 1160 | 28-36 | 
| DN1100 | 44" | 1320 | 1265 | 32-39 | 
| DN1200 | 48" | 1450 | 1380 | 32-39 | 
| DN1300 | 52" | 1560 | 1475 | 36-42 | 
| DN1400 | 56" | 1675 | 1590 | 36-42 | 
| DN1500 | 60" | 1775 | 1700 | 40-48 | 
| DN1600 | 64" | 1915 | 1820 | 40-48 | 
| DN1700 | 68" | 2015 | 1920 | 44-48 | 
| DN1800 | 72" | 2115 | 2020 | 44-48 | 
| DN1900 | 78" | 2200 | 2115 | 48-48 | 
| DN2000 | 80" | 2325 | 2230 | 48-48 | 
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 | 312 | 185.2 | 458 | 6 | 
| 300 | 380 | 32 | 227 | 352 | 216.3 | 484 | 10 | 401 | 32 | 227 | 360 | 216.3 | 499 | 10 | 418 | 32 | 227 | 368 | 216.3 | 516 | 10 | 
| 350 | 446 | 38 | 266 | 408 | 254 | 548 | 12 | 458 | 38 | 266 | 412 | 254 | 560 | 12 | 475 | 38 | 266 | 422 | 254 | 577 | 12 | 
| 400 | 498 | 44 | 310 | 460 | 294.4 | 603 | 14 | 515 | 44 | 310 | 463 | 294.4 | 620 | 14 | 547 | 44 | 310 | 484 | 294.4 | 652 | 14 | 
| Specification | ||||||
| 1 | Face to face according to DIN3202-K3. | |||||
| 2 | Flange drilling according to ANSI125/150;DIN2501PN10/PN16;AS2129 Table E;JIS10K ect. | |||||
| 3 | Working Pressure: PN10;PN16 | |||||
| Main Parts and Materials | ||||||
| Number | Part Name | Material | ||||
| 1 | Body | GGG50 | ||||
| 2 | Disc | SS304 | ||||
| 3 | Stem | SS304 | ||||
| 4 | Spring | SS304 | ||||
| 5 | Washer | PTFE | ||||
| 6 | Washer | PTFE | ||||
| 7 | Gasket | NBR | ||||
| 8 | Hex nut | A193A | ||||

| Main Dimensions | ||||||
| DN | D | D1 | D2 | L | R | t | 
| 50 | 107 | 65 | 40 | 43 | 27 | 18.4 | 
| 65 | 127 | 80 | 60 | 46 | 35 | 19.8 | 
| 80 | 142 | 94 | 70 | 64 | 42 | 27.7 | 
| 100 | 162 | 117 | 88 | 64 | 50 | 27.7 | 
| 150 | 218 | 171 | 134 | 76 | 77 | 31.6 | 
| 200 | 273 | 224 | 182 | 89 | 102.5 | 32.9 | 
| 300 | 378 | 310 | 260 | 114 | 146 | 43.3 | 
| 350 | 446 | 360 | 298 | 127 | 170 | 45.3 | 
| 400 | 488 | 410 | 350 | 140 | 195 | 52.3 | 
| 450 | 546 | 450 | 385 | 152 | 215 | 58.2 | 
| 500 | 594 | 505 | 438 | 152 | 238 | 58.3 | 
| 600 | 700 | 624.5 | 538 | 178 | 292 | 74.6 | 
| 700 | 820 | 720 | 662 | 229 | 345 | 96 | 
| 800 | 930 | 825 | 762 | 241 | 394 | 99 | 
Standards
Design and manufacture as BS1868, ANSI B16.34
Face to face dimensions as ANSI B16.10
End flange dimension as ANSI B16.5
Pressure-temperature ratings as ANSI B16.34
Pressure test as API 598
Applicable Medium: water ,gas,oil,and other causticity medium.
Test Pressure
| Test Item | Shell Test | Seal Test | Back Seal Test | Air Seal Test | |||||
| Medium | Water | Air | |||||||
| Unit | MPa | lbf/in2 | MPa | lbf/in2 | MPa | lbf/in2 | MPa | lbf/in2 | |
| Pressure (Class) | 150 | 3.1 | 450 | 2.2 | 315 | 2.2 | 315 | 0.5-0.7 | 60-100 | 
| 300 | 7.8 | 1125 | 5.6 | 815 | 5.6 | 815 | |||
| 400 | 10.3 | 1500 | 7.6 | 1100 | 7.6 | 1100 | |||
| 600 | 15.3 | 2225 | 11.2 | 1630 | 11.2 | 1630 | |||
| 900 | 23.1 | 3350 | 16.8 | 2440 | 16.8 | 2440 | |||
| 1500 | 38.4 | 5575 | 28.1 | 4080 | 28.1 | 4080 | |||
|   | 
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