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Ductile Iron Flap Wafer Check Valve
Silent check valve designed for water supply and drainage pipelines. This compact and lightweight valve offers low resistance, high fatigue resistance, and a long service life. It is ideal for preventing backflow in various industrial applications.
**Flange Type Silent Check Valve**
Prevents reverse flow of the medium, allowing it to move only in one direction.
**Key Features:**
1. Silent closing mechanism
2. Can be installed in any position
3. Available in sizes from 2" to 14"
4. Constructed from cast iron or ductile iron body
5. Certified with ISO9001 and CE standards
6. Working pressure: 1.0 MPa / 1.6 MPa
7. Operating temperature range: NBR (0°C to 80°C), EPDM (10°C to 120°C)
8. Flanges conform to EN1092-2 PN10/PN16
9. Tested according to DIN3230 and API598
10. Suitable for fresh water, seawater, and various types of oil
**Material Specifications:**
| Item | Description | Material (Optional) |
|------|-------------|---------------------|
| 1 | Seat | Ductile Iron GGG40 |
| 2 | Body | Cast Iron GG25 / Ductile Iron GGG40 |
| 3 | Bushing | PTFE |
| 4 | Spring | Stainless Steel |
| 5 | O-Ring | NBR / EPDM / VITON |
| 6 | Disc | Ductile Iron GGG40 / Brass |
This silent check valve is manufactured in Yantai, Shandong, China, and complies with international standards. With a model number DDCV-001, it meets DIN specifications and is suitable for industrial use, including water and drainage systems. The valve operates efficiently within a temperature range of -20°C to 135°C and is available in DN50 to DN300 sizes. Its trademark is DS, and it is certified for quality under CE and ISO9001. The HS code for this product is 84811000.