Slow damping valve closing features
Slow closing check valve muffler can be used in water, sewage, sea water and other media of the drainage pipes, both to prevent the media back, but also effectively limit the destructive water hammer to ensure the safety of the use of the pipeline. Microporous retarded butterfly check valve has the advantages of novel structure, small volume, light weight, small fluid resistance, reliable sealing, smooth opening and closing, wear resistance, long service life, hydraulic pressure and slow closing without media influence. Good energy-saving effect and so on.
Slow closing silencer slow closing the main parts of the material
| Part Name | Body | Disc | Stem, cylinder, piston, spring | Seat |
| material | Cast iron, cast steel | Carbon steel | stainless steel | Nitrile rubber |
Slow-closing muffler slow check the main technical parameters
| model | Nominal pressure | test pressure | proper temperature | Suitable media | Slow closing time | |
| case | seal | |||||
|
HH46X HDH48X HH49X |
1.0 | 1.5 | 1.1 | ≤80 ℃ | Water, sewage, sea water | ≤60 seconds |
| 1.6 | 2.4 | 1.76 | ||||
| 2.5 | 3.75 | 2.75 | ||||
Slow closing silencer slow main dimensions
| Nominal diameter | size | Nominal diameter | size | ||||
| L | H | H1 | L | H | H1 | ||
| 40 | 140 | 200 | 88 | 350 | 290 | 480 | 297 |
| 50 | 150 | 215 | 98 | 400 | 310 | 550 | 324 |
| 65 | 170 | 225 | 108 | 450 | 330 | 585 | 351 |
| 80 | 180 | 235 | 118 | 500 | 350 | 640 | 379 |
| 100 | 190 | 280 | 130 | 600 | 390 | 720 | 434 |
| 125 | 200 | 290 | 148 | 700 | 430 | 780 | 491 |
| 150 | 210 | 310 | 172 | 800 | 470 | 840 | 549 |
| 200 | 230 | 350 | 210 | 900 | 510 | 990 | 600 |
| 250 | 250 | 415 | 240 | 1000 | 550 | 1050 | 655 |
| 300 | 270 | 450 | 264 | 1200 | 630 | 1210 | 770 |
