Flange Single Disc Swing Check Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
E-mail: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Flange single disc swing check valves(pic1)
Flange single disc swing check valve(pic2)
Structural features
Flange single disc swing check valve adopts inner-installed rocker swing structure, and all hoist parts are installed interior, without penetrating body. In addition to the middle flange part uses sealing gasket and sealing ring, the whole parts are no leakage, to eliminate the possibility of valve leakage. The rocker and disc connection part use spherical connecting structure, making the disc have a certain free degree within the scope of 360 degree, and have appropriate compensation for the trace position. The Valve has been widely used in chemical industry, metallurgy, pharmaceuticals and other fields.
Dimensions & constructral diagram
H44H/Y/W-160～250 type Flange single disc swing check valve constructral diagram(pic1)
H44H/Y/W-160～250 type Flange single disc swing check valve constructral diagram(pic2)
Performance and specifications
| type | nominal pressure PN/MPa | test pressure PS(MPa) | working temperature（℃） | applicable medium | working temperature（℃） | ||||||
| shell | sealing | 120 | 200 | 350 | 425 | 450 | 350 | ||||
| max working pressure P/MPa | |||||||||||
| H44Y-4DI | 4.0 | 6.0 | 4.0 | ≤550 | water,steam,oil | - | 4.0 | 4.0 | 3.4 | - | 1.0 |
| H44M－4O | ≤450 | Dimethyl ethylbenzene | - | - | - | - | 1.8 | - | |||
| H44Y－40P | ≤120 | ||||||||||
| H44W-40P | -20～150 | benfield solution | 3.7 | - | - | - | - | - | |||
| H44W-40R | -20～150 | nitric acid | - | - | - | - | - | - | |||
| H44Y－40P1 | ≤550 | acetic acid | - | - | - | - | - | - | |||
| H44W-40P1 | steam,air,oil | - | 4.0 | - | - | - | 2.2 | ||||
| H44Y-64P1 | 5.1 | 9.6 | 6.4 | - | 4.0 | - | - | - | 2.2 | ||
| H44Y-64I | water,steam,oil | - | 6.4 | - | - | - | 3.6 | ||||
| - | - | 5.3 | 4.6 | - | 1.6 | ||||||
The materials of main parts
| part name | body,bonnet,rocket | disc | pin | bolt | nut | gasket |
| H44Y-4DI H44Y-64I | Cr-Mo cast steel | Cr-Mo-Ti cast steel | Cr stainless steel | Cr-Mo-v steel | Cr-Mo steel | stainless steel belt and asbestos plate PTFE |
| H44M-4O | carbon cast steel | high quality carbon steel | ||||
| H44Y/W-40P | Cr-Mo-Ti cast steel | Cr-Mo steel | stainless steel | |||
| H44W-40R | Cr-Mo-Ti cast steel | - | PTFE | |||
| H44Y/W-40P1 | Cr-Mo-Ti heat-resistant steel | - | ||||
| H44Y-64P1 | ||||||
Main dimensions and weight of H44Y-40I, H44M-40, H44Y-40P, H44Y-40P1, H44W-40P1, H44W40P, H44W-40R
| nominal diameter DN/mm | dimensions /mm | weight /㎏ | ||||||||
| L | D | D1 | D2 | D6 | b | Z-фd | D3 | H | ||
| 50 | 230 | 160 | 125 | 100 | 88 | 20 | 4-ф18 | 185 | 172 | 20 |
| 65 | 290 | 180 | 145 | 120 | 110 | 22 | 8-ф18 | 210 | 182 | 30 |
| 80 | 310 | 195 | 160 | 135 | 121 | 22 | 8-ф18 | 210 | 192 | 35 |
| 100 | 350 | 230 | 190 | 160 | 150 | 24 | 8-ф23 | 260 | 217 | 50 |
| 125 | 400 | 270 | 220 | 188 | 176 | 28 | 8-ф25 | 295 | 250 | 75 |
| 150 | 480 | 300 | 250 | 218 | 204 | 30 | 8-ф25 | 330 | 270 | 105 |
| 200 | 550 | 375 | 320 | 282 | 260 | 38 | 12-ф30 | 390 | 320 | 160 |
| 250 | 650 | 445 | 385 | 345 | 313 | 42 | 12-ф34 | 445 | 356 | 240 |
Main dimensions and weight of H44Y-64, H44Y-64P
| nominal diameter DN/mm | dimensions /mm | weight /㎏ | ||||||||
| L | D | D1 | D2 | D6 | b | Z-фd | D3 | H | ||
| 50 | 300 | 175 | 135 | 105 | 88 | 26 | 4-ф23 | 200 | 177 | 27 |
| 65 | 340 | 200 | 160 | 130 | 110 | 28 | 8-ф23 | 225 | 197 | 37 |
| 80 | 380 | 210 | 170 | 140 | 121 | 30 | 8-ф23 | 250 | 212 | 53 |
| 100 | 430 | 250 | 200 | 168 | 150 | 32 | 8-ф25 | 315 | 248 | 90 |
| 125 | 500 | 295 | 240 | 202 | 176 | 36 | 8-ф30 | 365 | 298 | 135 |
| 150 | 550 | 340 | 280 | 240 | 204 | 38 | 8-ф34 | 410 | 330 | 187 |
| 200 | 650 | 405 | 345 | 300 | 260 | 44 | 12-ф34 | 480 | 385 | 212 |
| 250 | 775 | 470 | 400 | 352 | 313 | 48 | 12-ф41 | 565 | 445 | 403 |
Performance and specifications
| type | nominal pressure PN(MPa) | test pressure（MPa） | suitable temperature（℃） | applicable medium | |
| shell | sealing | ||||
| H44H-160 | 16.0 | 24.0 | 16.0 | ≤425 | Water, steam, petroleum, petroleum products, etc. |
| H44H-250 | 25.0 | 38.0 | 25.0 | ||
| H44Y-200 | 20.0 | 30.0 | 20.0 | 60 | H oil |
| H44Y-250 | 25.0 | 38.0 | 25.0 | -40～100 | oil |
The materials of main parts
| part name | body, rocker | disc,nut | bonnet | pin,pendant collet | bolt | sealing face |
| H44H-160 | carbon cast steel | carbon steel | carbon cast steel | stainless steel | Cr-Mo steel | flexible graphite |
| H44H-250 | carbon steel | |||||
| H44Y-200 | ||||||
| H44Y-250 |
Main dimensions and weight of H44H-160 type
| nominal diameter DN/mm | dimensions /mm | weight /㎏ | |||||||||||
| L | D | D1 | D2 | D8 | b | f | b4 | f3 | Z-фd | Do | H | ||
| 50 | 300 | 215 | 165 | 132 | 95 | 36 | 3 | 12 | 8 | 8-ф25 | 142 | 210 | 44.5 |
| 65 | 340 | 245 | 190 | 152 | 110 | 44 | 3 | 12 | 8 | 8-ф30 | 161 | 227 | 54.7 |
| 80 | 380 | 260 | 205 | 168 | 130 | 46 | 3 | 12 | 8 | 8-ф30 | 180 | 235 | 67.5 |
| 100 | 430 | 300 | 240 | 200 | 160 | 48 | 3 | 12 | 8 | 8-ф34 | 210 | 274 | 101.5 |
| 150 | 550 | 390 | 318 | 270 | 205 | 66 | 3 | 14 | 10 | 12-ф41 | 300 | 340 | 220.6 |
| 200 | 650 | 480 | 400 | 345 | 275 | 78 | 3 | 17 | 11 | 12-ф48 | 375 | 374 | 404 |
| 300 | 900 | 665 | 570 | 510 | 380 | 100 | 3 | 23 | 14 | 16-ф54 | 480 | 505 | 1019 |
Main dimensions and weight of H44H-250 type
| nominal diameter DN/mm | dimensions /mm | weight /㎏ | |||||||||||
| L | D | D1 | D2 | D8 | d | f | b4 | f3 | Z-фd | Do | H | ||
| 80 | 450 | 260 | 205 | 168 | 130 | 50 | 3 | 12 | 8 | 8-ф30 | 200 | 245 | 90.6 |
| 100 | 520 | 300 | 240 | 200 | 160 | 58 | 3 | 12 | 8 | 8-ф34 | 225 | 280 | 139 |
Main dimensions and weight of H44Y-200 type
| nominal diameter DN/mm | dimensions /mm | weight /㎏ | |||||||||
| L | D | D1 | D2 | D6 | d | f | Z-фd | D3 | H | ||
| 150 | 700 | 440 | 360 | 305 | 185 | 82 | 3 | 12-ф48 | 310 | 343 | 372 |
| 200 | 800 | 535 | 440 | - | - | - | - | 12-ф54 | - | - | - |
Main dimensions and weight of H44Y-250 type
| nominal diameter DN/mm | dimensions /mm | |||
| L | D | D1 | Z-фd | |
| 65 | 400 | 260 | 203 | 8-ф30 |
| 80 | 450 | 290 | 230 | 8-ф34 |
| 100 | 520 | 360 | 292 | 8-ф41 |
| 150 | 700 | 440 | 360 | 12-ф48 |
| 200 | 800 | 535 | 440 | 12-ф54 |
