China • Yuanda Valve Group Co., Ltd.
Hundreds of Yuanda, Lean Change. Choosing Yuanda Means Reliable. The group attaches importance to the construction of corporate culture, and has three value concepts of "development concept", "people
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Swing check valve, also known as one-way valve or check valve, is used to prevent the backflow of medium in the pipeline. The valve whose opening and closing parts open or close automatically by medium flow and force to prevent medium backflow is called check valve. The check valve is an automatic valve, which is mainly used on the pipeline with one-way flow of medium. The medium is only allowed to flow in one direction to prevent accidents. This type of valve shall be installed horizontally in the pipeline.
Used to prevent media backflow. By selecting different materials (WCB, CF8 (m), CF3 (m), 1gr5mo, 15crmo1v, it can be applied to water, steam, oil, nitric acid, acetic acid, strong oxidizing medium, urea and other media. It is mainly used in petroleum, chemical, pharmaceutical, chemical fertilizer, electric power and other pipelines
| Design and manufacture | BS EN 12334 |
| Face to face | DIN 3202-F6 |
| Flange end | DIN 2531/2532/2533 |
Feature
| Size: | DN15-DN300 |
| Norminal pressure(MPA) | 1.6 |
| Suitbk temperature | ≤200°C |
| Seal test | 1.8mpa |
| Shell test | 2.4mpa |
| Suitable medium: | steam,water,oil |
| Part Name | Material |
| Body | GG25 |
| Seat | Brass/SS |
| Disc Seal Ring | Brass/SS |
| Disc | GG25 |
| Bonnet | GG25 |
| DN | L | D | D1 | D2 | b-f | Zxd | H |
| 50 | 200 | 165 | 125 | 99 | 20-2 | 4x19 | 115 |
| 65 | 240 | 185 | 145 | 118 | 20-2 | 4x19 | 130 |
| 80 | 260 | 200 | 160 | 132 | 22-2 | 8x19 | 147 |
| 100 | 300 | 220 | 180 | 156 | 24-2 | 8x19 | 166 |
| 125 | 350 | 250 | 210 | 184 | 26-2 | 8x19 | 188 |
| 150 | 400 | 285 | 240 | 211 | 26-2 | 8x23 | 217 |
| 200 | 500 | 340 | 295 | 266 | 30-2 | 12x23 | 275 |
