Description
Butterfly valves are designed for use as shut-off or regulating valves to control flows in heat supply systems, water supply systems, in technological processes of food, chemical, oil and gas, pulp and paper and other industries.
Operating principle: The valves are opened and closed by turning the disk by 90°. Opening is made by turning the handle counterclockwise, closing - clockwise. The peculiarity of the gate valves of this series is the complete covering of the flow part and disk with PTFE material, which allows to exclude the contact of the working medium with the materials of the main parts.
A distinctive feature of this series of valves is that the flow path and disc are completely coated with PTFE, which prevents the working medium from coming into contact with the materials of the main components.
The peculiarity of the gate valves of this series is the complete covering of the flow part and disk with PTFE material, which makes it possible to exclude the contact of the working medium with the materials of the main parts.
Technical characteristics of butterfly valves DNOVA WBV3434Pf-2W-Fb, body material - carbon steel, disk material - carbon steel, seal - PTFE, handle:
| Characteristic | Value |
| Butterfly valve type | Rotary disk |
| Diameter | 50-300 mm |
| Nominal pressure | 16 bar |
| Working medium temperature | -10 to +150°C |
| Application | Water supply, heat supply, chemical industry, oil and gas industry, food industry |
| Connection type | Flanged |
| Control type | Manual (handle, reducer) |
| Country of manufacturer | China |
| Service life | 10 years |
| Warranty | 12 months |
Overall and installation dimensions of butterfly valves DNOVA WBV3434Pf-2W-Fb, body material - carbon steel, disk material - carbon steel, seal - PTFE, handle:
| Diameter | L, mm | D1, mm | D2, mm | Z-Ød, mm | H1, mm |
| DN50 | 43 | 125 | 100 | 2-Ø18 | 80 |
| DN65 | 46 | 145 | 120 | 2-Ø18 | 90 |
| DN80 | 46 | 160 | 135 | 4-Ø18 | 100 |
| DN100 | 52 | 180 | 155 | 4-Ø18 | 110 |
| DN125 | 56 | 210 | 185 | 4-Ø18 | 120 |
| DN150 | 56 | 240 | 210 | 4-Ø18 | 150 |
| DN200 | 60 | 295 | 265 | 4-Ø18 | 170 |
| DN250 | 68 | 355 | 320 | 4-Ø18 | 190 |
| DN300 | 78 | 410 | 375 | 4-Ø18 | 230 |
Materials of parts of butterfly valves DNOVA WBV3434Pf-2W-Fb, body material - carbon steel, disk material - carbon steel, seal - PTFE, handle:
| № | Part Name | Material |
|---|---|---|
| 1 | Body |
DN50÷200 – Carbon steel WCB, lined with PTFE; |
| 2 | Disc | DN50÷200 – Carbon steel WCB, lined with PTFE; DN150÷200 – Carbon steel WCB, lined with PTFE; DN250÷300 – Carbon steel WCB, lined with PFA (enhanced PTFE) |
| 3 | Shaft | DN50÷200 – Stainless steel 2Cr13; DN150÷250 – Stainless steel 2Cr13; DN300 – Steel 45 |
| 4 | Seat seal | PTFE |
| 5 | lever | alloy of cast iron and aluminum |
Specifications
Delivery
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