In detail
What it is made of
How it works
Swing check valve
The number that matters
Nominal pressure
10bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
Applications
Media and industries
- Water
- Air
- Oil Products
- Water Supply
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
- Body material
- Cast iron GGG50/EN-GJS-500-7
- Maximum allowable temperature
- 120 °C
- Connection type
- Flanged
- Operating environment
- Water, Air, and Oil Products
- Applications
- Water Supply
- Nominal pressure
- 10 bar
- Type of seal
- EPDM
- Locking material
- Cast iron GGG50/EN-GJS-500-7
- Check valve type
- Swing
- Country of origin
- China
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.
Total items
Product subtotal