Description
Check valves DNOVA VCD1313E-F are designed to prevent changes in the direction of flow of the working medium in the pipeline in the opposite direction. The check valve disk is fixed on an axis located with eccentricity relative to the horizontal axis of symmetry. When the medium is supplied in the direction under the disk, the valve opens, while the disk is held in the “open” position due to the lifting force arising from the high-speed pressure of the flow. After the supply of medium is stopped, the disk smoothly closes under the influence of its own weight, which creates a closing moment due to the displacement of the center of gravity of the disk valve relative to the axis of rotation. The counterweight keeps the disc fully open, reducing flow resistance, and also promotes better sealing when closed at low pressure. Fast closing helps to avoid damage to the pump due to backflow, slow closing helps to avoid the effect of water hammer, which protects the pipeline.
General mass and dimensional parameters of check valves DNOVA VCD1313E-F DN100-300 10 bar
| DN | Pressure | L | D | D1 | N, piece – Ød | Weight, kg |
| 100 | 10 | 190 | 220 | 180 | 8 – 19 | 18 |
| 150 | 10 | 210 | 285 | 240 | 8 – 23 | 26 |
| 200 | 10 | 230 | 340 | 295 | 8 – 23 | 47 |
| 250 | 10 | 250 | 405 | 350 | 12 – 23 | 76 |
| 300 | 10 | 270 | 460 | 400 | 12 – 23 | 96 |
General mass and dimensional parameters of check valves DNOVA VCD1313E-F DN200-300 16 bar
| DN | Pressure | L | D | D1 | N, piece – Ød | Weight, kg |
| 200 | 16 | 230 | 340 | 295 | 12 – 23 | 47 |
| 250 | 16 | 250 | 405 | 355 | 12 – 28 | 76 |
| 300 | 16 | 270 | 460 | 410 | 12 – 28 | 96 |
Dimensional sketch of check valves DNOVA VCD1313E-F
General parts and materials of check valves DNOVA VCD1313E-F body material - cast iron GGG50, seal - EPDM, disc - cast iron GGG50, flanged, with swashplate and counterweight
| № | Name | Material |
| 1 | Case | cast iron GGG50 |
| 2 | Disk | cast iron GGG50 |
| 3 | Counterweight | carbon steel |
| 4 | Axis | steel 2Cr13 |
| 5 | Disk seal | EPDM |
| 6 | Shaft sleeve | self-lubricating SF sliding bushing (steel + sintered bronze + PTFE) |
Detail sketch of check valves DNOVA VCD1313E-F body material - cast iron GGG50, seal - EPDM, disc - cast iron GGG50, flanged, with swashplate and counterweight
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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