First, product characteristics
Fluorine lined check valve (also known as check valve) the role of this type of valve is to allow the medium to flow in only one direction, and to prevent the direction of flow.Second, the working principle
Lining check valve only allows media to flow in one direction and prevents fluid backflow. Usually, this valve works automatically, under pressure in one direction, valve disc opens, fluid flows in the opposite direction when fluid pressure and valve disc, PTFE valve ball weight, hand seat to cut off flow.Part name | Investment cast ductile iron | Carbon steel | Stainless steel | |||
QT | C | P | R | PL | RL | |
Body, cover, disc | QT400 | WCB | CF8 | CF 8M | CF3 | CF3M |
Lining material | FEP(F46)、PTFE(F4)、PFA(soluble polytetrafluoroethylene), PO(polyolefin), PE(ultra-high molecular weight polyethylene) | |||||
bolt | 35 | 35 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr18Ni9 | 1Cr18Ni9 |
nut | 45 | 45 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 |
Technical standard | |
Design and manufacture | GB/T12235 GB/T12236 |
Structural length | HG/T3704-2003 GB12221ASME B16.10 |
Flange size | GB/T9113.1、ANSI B16.5a |
Structural form | Lift vertical, rotary, lift straight through |
Nominal pressure | 0.6、1.0、1.6、2.5MpaClass150 JIS 10K |
Pressure test | GB/T13927-92API598 |
Basic model | ||
H41F4 | H42F4 | H441F4 |
H41F46 | H42F46 | H44F46 |
H41PFA | H42PFA | H44PFA |
Nominal diameter | DN15-DN400 | |||
pressure | 1.0Mpa 1.6Mpa 150LB | |||
Serial number | name | Material details | ||
1 | Body, disc, cover | A216WCB+Lining material | A351 CFB/A351 | A351 CF3/A351CF3M+Lining material |
2 | The ball | PTFE | ||
3 | Lining material | FEP PFA GXPO | ||
4 | bolt | A193 B7 | A320 B8 | A193 B8M |
Design standard | HG/T 3704 GB/T 12235 | AP16D | ||
Structural length | HG/T 3704 GB/T 12221 | ASME B16.10 | ||
Flange size | HG/T 20592 GB/T 9119 | ASME B16.5 JIS B2220 | ||
Inspection and test | GB/T 13927 JB/T 9092 | API 598 | ||
Nominal pressure(MPa) | 1.0 | 1.6 | 150LB | |
Experimental pressure | Shell pressure test | 1.5 | 1.5 | 1.5 |
| High pressure seal | 1.1 | 1.1 | 1.1 |
| Low pressure seal | 0.6 | 0.6 | 0.6 |
Applicable temperature ℃ | PFA -30~200 FEP -30~150 GXPO -10~80 | |||
Applicable medium | Hydrochloric acid, nitric acid, hydrofluoric acid, liquid chlorine, sulfuric acid, aqua regia and other strong corrosive media |
DN | L1 | L2 | D | D1 | D2 | N-Фd | f | b | H | Wt(Kt) |
15 | 130 | 110 | 95 | 65 | 45 | 4-14 | 2 | 14 | 82 | 6.5 |
20 | 150 | 117 | 105 | 76 | 55 | 4-14 | 2 | 14 | 82 | 5 |
25 | 160 | 127/100 | 115 | 86 | 65 | 4-14 | 2 | 14 | 98 | 6 |
32 | 180 | 140/110 | 140 | 100 | 78 | 4-18 | 3 | 16 | 110 | 7.5 |
40 | 200 | 165/125 | 150 | 110 | 85 | 4-18 | 3 | 16 | 118 | 9.5 |
50 | 230 | 178/140 | 165 | 125 | 100 | 4-18 | 3 | 16 | 138 | 13 |
65 | 290 | 190/160 | 185 | 145 | 120 | 4-18 | 3 | 18 | 156 | 19.5 |
80 | 310 | 203/185 | 200 | 160 | 135 | 8-18 | 3 | 20 | 160 | 27 |
100 | 350 | 229/210 | 220 | 180 | 155 | 8-18 | 3 | 20 | 185 | 35 |
125 | 400 | 280/250 | 250 | 210 | 185 | 8-18 | 3 | 22 | 208 | 56 |
150 | 480 | 300 | 285 | 240 | 210 | 8-23 | 3 | 24 | 245 | 75 |
200 | 600 | 380 | 340 | 295 | 265 | 8-23 | 3 | 26 | 298 | 118 |
250 | 670 | 420 | 395 | 350 | 320 | 12-23 | 4 | 28 | 342 | 165 |
300 | 850 | 425 | 445 | 400 | 368 | 12-23 | 4 | 28 | 210 |
DN | L1 | L2 | D | D1 | D2 | N-Фd | f | b | H | Wt(Kt) |
15 | 130 | 110 | 95 | 65 | 45 | 4-14 | 2 | 14 | 82 | 4 |
20 | 150 | 117 | 105 | 75 | 55 | 4-14 | 2 | 14 | 82 | 5 |
25 | 160 | 127/100 | 115 | 85 | 65 | 4-14 | 2 | 14 | 98 | 6 |
32 | 180 | 140/110 | 140 | 100 | 78 | 4-18 | 3 | 16 | 110 | 7.5 |
40 | 200 | 165/125 | 150 | 110 | 85 | 4-18 | 3 | 16 | 118 | 9.5 |
50 | 230 | 178/140 | 165 | 125 | 100 | 4-18 | 3 | 16 | 138 | 13 |
65 | 290 | 190/160 | 185 | 145 | 120 | 4-18 | 3 | 18 | 156 | 19.5 |
80 | 310 | 203/185 | 200 | 160 | 135 | 8-18 | 3 | 20 | 160 | 27 |
100 | 350 | 229/210 | 220 | 180 | 155 | 8-18 | 3 | 20 | 185 | 35 |
125 | 400 | 280/250 | 250 | 210 | 185 | 8-18 | 3 | 22 | 208 | 56 |
150 | 480 | 300 | 285 | 240 | 210 | 8-23 | 3 | 24 | 245 | 75 |
200 | 600 | 380 | 340 | 295 | 265 | 12-23 | 3 | 26 | 298 | 118 |
250 | 670 | 420 | 405 | 355 | 320 | 12-25 | 4 | 28 | 342 | 165 |
300 | 850 | 425 | 460 | 410 | 375 | 12-25 | 4 | 29 |
DN | L1 | L2 | D | D1 | D2 | N-Фd | f | b | H | Wt(Kt) |
15 | 130 | 110 | 95 | 65 | 45 | 4-14 | 2 | 16 | 82 | 6.5 |
20 | 150 | 117 | 105 | 75 | 55 | 4-14 | 2 | 16 | 82 | 7 |
25 | 160 | 127/100 | 115 | 85 | 65 | 4-14 | 2 | 16 | 98 | 8 |
32 | 180 | 140/110 | 140 | 100 | 78 | 4-18 | 3 | 18 | 110 | 11 |
40 | 200 | 165/125 | 150 | 110 | 85 | 4-18 | 3 | 18 | 118 | 15 |
50 | 230 | 178/140 | 165 | 125 | 100 | 4-18 | 3 | 20 | 138 | 17.5 |
65 | 290 | 190/160 | 185 | 145 | 120 | 8-18 | 3 | 22 | 156 | 26 |
80 | 310 | 203/185 | 200 | 160 | 135 | 8-18 | 3 | 22 | 160 | 36 |
100 | 350 | 229/210 | 235 | 190 | 160 | 8-23 | 3 | 24 | 185 | 44 |
125 | 400 | 280/250 | 270 | 220 | 188 | 8-25 | 3 | 28 | 208 | 60 |
150 | 480 | 300 | 300 | 250 | 218 | 8-25 | 3 | 30 | 245 | 81 |
200 | 600 | 380 | 360 | 310 | 278 | 12-25 | 3 | 34 | 298 | 137 |
250 | 670 | 420 | 425 | 370 | 332 | 12-30 | 4 | 36 | 342 | 173 |
300 | 850 | 425 | 485 | 410 | 375 | 16-30 | 4 | 39 |
DN | L1 | L2 | D | D1 | D2 | N-Фd | f | b | H | Wt(Kt) |
1/2 | 130 | 110 | 89 | 60.5 | 35 | 4-16 | 2 | 12 | 82 | 4 |
3/4 | 150 | 117 | 98 | 70.0 | 43 | 4-16 | 2 | 12 | 82 | 5 |
1 | 160 | 127/100 | 108 | 79.5 | 51 | 4-16 | 2 | 12 | 98 | 6 |
11/4 | 180 | 140/110 | 117 | 89.0 | 64 | 4-16 | 2 | 13 | 110 | 7.5 |
11/2 | 200 | 165/125 | 127 | 98.5 | 73 | 4-16 | 2 | 15 | 118 | 9.5 |
2 | 230 | 178/140 | 152 | 120.5 | 92 | 4-19 | 2 | 16 | 138 | 13 |
21/2 | 290 | 190/160 | 179 | 139.5 | 105 | 4-19 | 2 | 18 | 156 | 19.5 |
3 | 310 | 203/185 | 190 | 152.5 | 127 | 4-19 | 2 | 19 | 160 | 27 |
4 | 350 | 229/210 | 229 | 190.5 | 157 | 8-19 | 2 | 24 | 185 | 35 |
5 | 400 | 280/250 | 254 | 216.0 | 186 | 8-22 | 3 | 24 | 208 | 56 |
6 | 480 | 300 | 279 | 241.5 | 216 | 8-22 | 3 | 26 | 245 | 75 |
8 | 600 | 380 | 343 | 298.5 | 270 | 8-22 | 3 | 29 | 298 | 118 |
10 | 670 | 420 | 406 | 362.0 | 324 | 12-25 | 3 | 31 | 342 | 165 |
12 | 850 | 425 | 485 | 432 | 381 | 12-25 | 4 | 34.5 | 205 |