Description
Check valve is a device in a pipeline that allows fluids or gases to flow in only one direction. When the pressure of the fluid or gas in the pipeline exceeds a certain value, the valve opens, allowing the substance to pass through. However, when the pressure drops or tries to move in the opposite direction, the valve closes, preventing backflow. Check valves are widely used in various industrial and commercial applications to ensure safety and control the flow in pipeline systems.
Dimensions of the check valve DNOVA 302A
| DN | L, mm | D, mm | D1, mm | D2, mm | B - f, mm | Z - Ød | Weight,kg |
| 50 | 200±2 | 165 | 125 | 99 | 20-2 | 4 – Ø19 | 13,00 |
| 65 | 240±2 | 185 | 145 | 118 | 20-2 | 4 – Ø19 | 17,40 |
| 80 | 260±2 | 200 | 160 | 132 | 22-2 | 8 – Ø19 | 24,40 |
| 100 | 300±2 | 220 | 180 | 156 | 24-2 | 8 – Ø19 | 33,20 |
| 125 | 350±2 | 250 | 210 | 184 | 26-2 | 8 – Ø19 | 52,00 |
| 150 | 400±2 | 285 | 240 | 211 | 26-2 | 8 – Ø23 | 75,20 |
| 200 | 500±2 | 340 | 295 | 266 | 30-2 | 12 – Ø23 | 121,00 |
Dimensional sketch of check valve DNOVA 302A, body material - cast iron GG25, closure element material - stainless steel AISI 420, seal - stainless steel
Materials of the check valve parts DNOVA 302A
| № | Part name | Material |
| 1 | Body | cast iron HT250(GG25) |
| 2 | Saddle | ZHMn58-2-2 (CuZn40Mn) / ZG2Cr13 (G-X20Cr14) |
| 3 | Gate sealing ring | ZHMn58-2-2 (CuZn40Mn) / ZG2Cr13 (G-X20Cr14) |
| 4 | Shutter | cast iron HT250(GG25) |
| 5 | Gasket | steel 35 |
| 6 | Bolt | steel 35 |
| 7 | Bracket | cast iron QT450-10 |
| 8 | Gasket | steel 08 + thermally expanded graphite |
| 9 | Cover | cast iron HT250(GG25) |
| 10 | Bolt | steel 35 |
| 11 | Cylindrical pin with female thread | steel 304 (G-X6CrNi189) |
| 12 | Flat washer | PTFE |
| 13 | screw plug | steel 25 |
Material sketch of check valve DNOVA 302A, body material - cast iron GG25, closure element material - stainless steel AISI 420, seal - stainless steel
Specifications
Delivery
The cost and delivery time for your order depend on several factors, including the specific product you are ordering, the quantity, and the country of destination. Each product may have different manufacturing lead times and shipping requirements, which can affect the overall delivery schedule.
To get the most accurate and up-to-date information on delivery costs and timelines, we recommend contacting our sales managers. They will be happy to provide you with a detailed quote and estimated delivery time based on your specific requirements.
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