Description
Butterfly valves are designed for use as shut-off or regulating valves for controlling 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 performed by turning the handle counterclockwise, closing - clockwise.
Electric quarter-turn actuators of explosion-proof version are designed for remote and local control of the rotation of the shut-off body by 0° ~ 270° of such types as ball valve, etc. They are widely used in various branches of national economy: in gas, oil, metallurgical, food industry, housing and communal services, etc. Suitable for use in industrial explosion hazardous areas.
Technical parameters of water butterfly valve DNOVA WBV3131V-2W-Fb-H, body material - Stainless steel AISI 304, disk material - Stainless steel AISI 304, seal - Viton, electric actuator QT-EX-xEM-O2 380V:
|
Characteristic |
Value |
|
Type of valve |
Rotary disc |
|
Diameter |
50-300 mm |
|
Nominal pressure |
16 bar |
|
Working medium temperature |
From -20 to +200°C |
|
Application |
Water supply, heat supply, chemical industry, oil and gas industry, food industry, pulp and paper industry |
|
Type of connection |
Interflanged |
|
Type of control |
Electric actuator |
|
Tightness class |
A |
|
Country of manufacture |
China |
|
Service life |
10 years |
|
Warranty |
12 months |
Technical characteristics of quarter-turn actuators DNOVA QT-EX-xEM-O2 380V:
| Parameter | Value |
| Enclosure protection class | IP67 |
| Control type | ON / OFF |
| Rotation angle, ° | 90±10 |
| Power supply voltage | 220 VAC, 380 VAC, 24 VDC |
| Motor type | Asynchronous motor with squirrel cage rotor |
| Limit switches | 1xOpen/Close, SPDT, 250VAC 10A |
| Auxiliary limit switches | 1xOpen/Close, SPDT, 250VAC 10A |
| Torque switch | 1xOpen/Close, SPDT, 250VAC 10A (except QT-EX-010EM-O2-x-U1) |
| Internal thermal protection | Off at 115°C ±5°C, on at 97°C ±5°C |
| Visual position indicator | Available |
| Manual override | Handwheel |
| Electric actuator position self-locking | Self-locking by worm gear mechanism |
| Mechanical limit stops | Two external adjustable stops |
| Cable entry | M20×1.5 and M36×2 |
| Ambient temperature, °C | from -20 to +70 |
| Lubrication | Aluminum-based (EP type) |
| Explosion-proof standard | ExdIICT4 |
| Enclosure | Aluminum alloy with powder epoxy anti-corrosion coating |
| Max ambient humidity, % | 90 (non-condensing) |
| Average number of open/close cycles | 60 |
Dimensions and installation sizes of water butterfly valve DNOVA WBV3131V-2W-Fb-H, body material - Stainless steel AISI 304, disk material - Stainless steel AISI 304, seal - Viton, electric actuator QT-EX-xEM-O2 380V:
| Diameter | A, mm | B, mm | C, mm | PCD, mm | ØD, mm | H, mm | Q° |
| DN50 | 72.5 | 130.5 | 43 | 125 | 19 | 220 | 45 |
| DN65 | 77.5 | 146.5 | 46 | 145 | 19 | 220 | 45 |
| DN80 | 92 | 156 | 46 | 160 | 19 | 220 | 22.5 |
| DN100 | 109 | 168.5 | 52 | 180 | 19 | 260 | 22.5 |
| DN125 | 127 | 190.5 | 56 | 210 | 19 | 260 | 22.5 |
| DN150 | 141 | 213.5 | 56 | 240 | 23 | 260 | 22.5 |
| DN200 | 166 | 246.5 | 60 | 295 | 23 | - | 15 |
| DN250 | 203 | 283 | 68 | 355 | 28 | - | 15 |
| DN300 | 236 | 318 | 78 | 410 | 28 | - | 15 |
Overall and installation sizes of quarter-turn actuators DNOVA QT-EX-xEM-O2 380V:
| Model | W | K | K1 | A | B | D |
| mm | ||||||
| QT-EX-010EM | 160 | 70 | 230 | Ø90 | Ø70 | Ø50 |
| QT-EX-015EM | 160 | 70 | 230 | Ø90 | Ø70 | Ø50 |
| QT-EX-020EM | 160 | 80 | 250 | Ø120 | Ø102 | Ø70 |
| QT-EX-030EM | 160 | 72 | 298 | Ø150 | Ø102 | Ø70 |
| QT-EX-050EM | 160 | 72 | 298 | Ø150 | Ø102 | Ø70 |
| QT-EX-080EM | 160 | 104 | 296 | Ø180 | Ø125 | Ø102 |
| QT-EX-100EM | 160 | 104 | 296 | Ø180 | Ø125 | Ø102 |
| QT-EX-160EM | 160 | 104 | 296 | Ø210 | Ø165 | Ø125 |
| QT-EX-200EM | 160 | 104 | 296 | Ø210 | Ø165 | Ø125 |
| Model | F | L | L1 | Н | n-C | n-E |
| mm | ||||||
| QT-EX-010EM | Ø16 | 240 | 68 | 270 | 4-M8 | 4-M6 |
| QT-EX-015EM | Ø16 | 240 | 68 | 270 | 4-M8 | 4-M6 |
| QT-EX-020EM | Ø30 | 260 | 75 | 280 | 4-M10 | 4-M8 |
| QT-EX-030EM | Ø30 | 290 | 82 | 320 | 4-M12 | 4-M8 |
| QT-EX-050EM | Ø30 | 290 | 82 | 320 | 4-M12 | 4-M8 |
| QT-EX-080EM | Ø40 | 333 | 82 | 320 | 4-M14 | 4-M12 |
| QT-EX-100EM | Ø40 | 333 | 93 | 350 | 4-M14 | 4-M12 |
| QT-EX-160EM | Ø60 | 333 | 93 | 350 | 4-M16 | 4-M14 |
| QT-EX-200EM | Ø60 | 333 | 93 | 350 | 4-M16 | 4-M14 |
Materials of parts of water butterfly valve DNOVA WBV3131V-2W-Fb-H, body material - Stainless steel AISI 304, disk material - Stainless steel AISI 304, seal - Viton, electric actuator QT-EX-xEM-O2 380V:
|
№ |
Part name |
Material |
|
1 |
Body |
Stainless steel 304 |
|
2 |
Disc |
Stainless steel 304 |
|
3 |
Seat seal |
Viton |
|
4 |
Stem |
Stainless steel SS 416 |
|
5 |
Handle |
Carbon 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.
Please feel free to reach out to us for any questions or further assistance regarding your order.