Model DH77XButterfly Check ValveIt consists of parts such as valve body, valve flap, valve stem and spring, and adopts butt-clamp connection. Due to the short closing stroke of the valve flap and spring loading, the water hammer phenomenon can be significantly reduced. Thecheck valvesMainly used in urban, industrial and high-rise building water supply and drainage network. Because of its structure length is shorter than the general check valve, it is most suitable for places with installation space limitation. Butterfly check valve for pure pipeline and industry, environmental protection, water treatment, high-rise building water supply and drainage pipeline, to prevent the media reverse flow.
Product Features
- Small volume, light weight, compact structure, easy maintenance;
- The valve plate adopts the dyadic design, which can close quickly by itself under the elastic torque of the spring;
- Due to the speed closure effect, the medium can be prevented from backflow;
- The valve body structure has small length dimension and good rigidity;
- Safe and convenient for installation in both horizontal and vertical directions.
Product Parameters
产品型号 | DH77X-16Q |
阀体材质 | 球墨铸铁 |
阀板材质 | 球墨铸铁/304不锈钢 |
公称压力 | ≤1.6Mpa |
适用介质 | 水等 |
适用温度 | ≤80°C |
Product Size Reference

通径 | L | D | D1 |
DN40 | 43 | 107 | 65 |
DN50 | 43 | 107 | 65 |
DN65 | 46 | 127 | 80 |
DN80 | 64 | 142 | 94 |
DN100 | 64 | 162 | 117 |
DN125 | 70 | 192 | 145 |
DN150 | 76 | 218 | 170 |
DN200 | 89 | 273 | 224 |
DN250 | 114 | 328 | 265 |
DN300 | 114 | 378 | 310 |
DN350 | 127 | 438 | 360 |
DN400 | 140 | 489 | 410 |
DN450 | 152 | 539 | 450 |
DN500 | 152 | 594 | 505 |
DN600 | 178 | 690 | 624 |
DN700 | 229 | 800 | 720 |