How it works
Electric quarter-turn actuator
Butterfly disc
The number that matters
Nominal pressure
16bar
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
- Neutral Media
- Water Supply
- Industry
- Heating Systems
The DNOVA WBV1331E-2W-F butterfly valve is designed to be used as a shut-off or control valve to control flows in heat supply systems, water supply, in technological processes in the food, chemical, oil and gas, pulp and paper and other industries. The valves open and close by turning the disk 90°. Opening is done by turning the handle counterclockwise, closing - clockwise.
Explosion-proof quarter-turn electric actuators are designed for remote and local control of rotation of the shut-off element by 0° ~ 270° of such types as a ball valve, etc. They are widely used in various sectors of the national economy: in the gas, oil, metallurgy, food industries, in housing and communal services, etc. Suitable for use in industrial explosion hazardous areas.
Technical characteristics of DNOVA WBV1331E-2W-F butterfly valves DN50-300 PN16 body - cast iron GGG40, disc - stainless steel 304, EPDM:
| Characteristic | Meaning |
| Shutter type | rotary disc |
| Diameter | 50-300 mm |
| Nominal pressure | 16 bar |
| Working environment temperature | from -25 to +130°C |
| Application | water supply, industry, heating systems |
| Connection type | flanged |
| Control type | electric drive |
| Sealing class | A |
| Service life | 10 years |
| Guarantee | 12 months |
Technical characteristics of quarter-turn electric drives DNOVA QT-EX-xEM-O1-220VAC-U1:
| Characteristic | Meaning |
| Electric drive type | quarter turn |
| Drive torque | 150-2000 Nm |
| Supply voltage | 220V |
| Application | water supply, industry, heating systems |
| Explosion protection | ExdIICT4 |
| Climate performance | U1 |
Sketch of dimensions of butterfly valves DNOVA WBV1331E-2W-F DN50-300 PN16 body - cast iron GGG40, disk - stainless steel 304, EPDM
Overall and installation dimensions of butterfly valves DNOVA WBV1331E-2W-F DN50-300 PN16 body - cast iron GGG40, disc - stainless steel 304, EPDM:
| Diameter | L, mm | D, mm | D1, mm | D2, mm | nd, mm |
| DN50 | 108 | 165 | 125 | 99 | 4-18 |
| DN65 | 112 | 185 | 145 | 118 | 4-18 |
| DN80 | 114 | 200 | 160 | 132 | 8-18 |
| DN100 | 127 | 220 | 180 | 156 | 8-18 |
| DN125 | 140 | 250 | 210 | 184 | 8-18 |
| DN150 | 140 | 285 | 240 | 211 | 8-22 |
| DN200 | 152 | 340 | 295 | 266 | 12-22 |
| DN250 | 165 | 405 | 355 | 319 | 12-26 |
| DN300 | 178 | 460 | 410 | 370 | 12-26 |
Sketch of dimensions of quarter-turn electric drives DNOVA QT-EX-xEM-O1-220VAC-U1
Overall and installation dimensions of quarter-turn electric actuators DNOVA QT-EX-xEM-O1-220VAC-U1:
| Model | L | L1 | H |
| EX-010EM | 240 | 68 | 270 |
| EX-015EM | 240 | 68 | 270 |
| EX-020EM | 260 | 75 | 280 |
| EX-030EM | 290 | 82 | 320 |
| EX-050EM | 290 | 82 | 320 |
| EX-080EM | 333 | 82 | 320 |
| EX-100EM | 333 | 93 | 350 |
| EX-160EM | 333 | 93 | 350 |
| EX-200EM | 333 | 93 | 350 |
Sketch of materials of butterfly valves DNOVA WBV1331E-2W-F DN50-300 PN16 body - cast iron GGG40, disk - stainless steel 304, EPDM
Materials of parts of butterfly valves DNOVA WBV1331E-2W-F DN50-300 PN16 body - cast iron GGG40, disc - stainless steel 304, EPDM:
| No. | Part name | Material |
| 1 | Frame | cast iron GGG40 |
| 2 | Disk | stainless steel 304 |
| 3 | Saddle seal | EPDM |
| 4 | Stock | Stainless steel SS 420 |
| 5 | Lever | cast iron GGG40 |
- Body material
- Cast iron GGG40/EN-GJS-400-15
- Maximum allowable temperature
- 130 °C
- Connection type
- Flanged
- Control type
- Electric actuator
- Operating environment
- Water, Air, and Neutral Media
- Applications
- Water Supply, Industry, and Heating Systems
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Stainless steel AISI 304
- Explosion-proof
- Yes
- Manual override
- Handwheel
- Limit switches
- Yes
- Type of electric actuator
- Quarter-turn
- Supply voltage
- 220 V
- 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