Shopping security
The double-leaf check valve is designed to prevent the flow direction of the working medium in the pipeline from changing in the opposite direction.
| Characteristic | Meaning |
| Device type | double leaf |
| Diameter | 40-200 mm |
| Nominal pressure | 16 bar |
| Working medium temperature | from -20 to +120°C |
| Application | cold and hot water supply systems; treatment facilities; industrial pipelines |
| Operating environment | hot water; cold water; other liquids that are not aggressive to the materials of the product |
| Connection type | compact flanged |
| Service life | 5 yers |
| Sealing class | A |
| Manufacturer's country | China |
| Warranty | 12 months |

| Model | ØD, mm | B, mm | Weight, kg |
| DN40 | 92 | 43 | 1.18 |
| DN50 | 107 | 43 | 1.52 |
| DN65 | 127 | 46 | 2.12 |
| DN80 | 142 | 64 | 3.15 |
| DN100 | 162 | 64 | 4.48 |
| DN125 | 192 | 70 | 5.72 |
| DN150 | 218 | 76 | 8.71 |
| DN200 | 273 | 89 | 14.02 |
| DN250 | 328 | 114 | 25.40 |
| DN300 | 382 | 114 | 36.47 |

| № | Part Name | Material |
|---|---|---|
| 1 | Body | cast iron GG25 |
| 2 | Disc | cast iron GG25 |
| 3 | Spring | stainless steel AISI 304 |
| 4 | Hinge pin | stainless steel AISI 416 |
| 5 | Cork | high carbon steel |
| 6 | Housing bushing | PTFE |
| 7 | Washer | PTFE |
| 8 | Locking pin | stainless steel AISI 416 |
| 9 | Mounting hook (for models DN200-300) |
high carbon steel |
| 10 | Sealing | EPDM |

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