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
A water butterfly valve is a type of valve used to control the flow of water or other fluids through a pipeline. It gets its name from the butterfly-shaped disc inside the valve that rotates to open or close the flow. When the valve is fully open, the disc is positioned parallel to the flow direction, allowing unobstructed passage of water. When the valve is closed, the disc is turned perpendicular to the flow, effectively blocking the flow of water. Water butterfly valves are commonly used in various industries and applications, including water treatment plants, sewage systems, irrigation systems, and industrial processes. They are known for their compact design, lightweight construction, and ease of installation. These valves are often preferred for their quick operation, as the disc can be opened or closed with a simple quarter-turn motion. Butterfly valves can be operated manually with a handle or lever, or they can be automated using electric, pneumatic, or hydraulic actuators to control the valve remotely. They are known for their low-pressure drop and relatively low cost compared to other types of valves. It's worth noting that water butterfly valves are specifically designed for use with water and compatible fluids. Different materials and designs may be required for valves intended for use with corrosive or high-pressure fluids. It's important to select the appropriate type of butterfly valve based on the specific application and fluid requirements.
Overall and installation dimensions of the gate valve DNOVA DN40
| DN | A | B | C | E | L | ØD | Ød | 4-Ødo | HxH | bore diameter |
| 40 | 114 | 66 | 26 | 34 | 210 | 65 | 50 | 4-7 | 9x9 | 50 |
Sketch Butterfly valves DN40
Overall and installation dimensions of water butterfly valve DNOVA WBV1332N-2W-Fb-H body material - Cast iron GGG50, disk material - Stainless steel 316L, seal - NBR with electric actuator DNOVA 220V
| DN |
Model electric actuator |
Dimensions | |||
| E, mm | L1, mm | A, mm | C, mm | ||
| 40 | DNOVA-003 220V | 34 | 123 | 114 | 113 |
| 40 | DNOVA-003 220V MINI | 34 | 123 | 114 | 113 |
| 50 | DNOVA-003 220V | 43 | 123 | 131 | 113 |
| 50 | DNOVA-003 220V MINI | 43 | 123 | 131 | 113 |
| 65 | DNOVA-005 220V | 46 | 160 | 140 | 146 |
| 80 | DNOVA-005 220V | 46 | 160 | 150 | 146 |
| 100 | DNOVA-008 220V | 52 | 160 | 163 | 146 |
| 125 | DNOVA-015 220V | 56 | 189 | 178 | 163 |
| 150 | DNOVA-015 220V | 56 | 189 | 191 | 163 |
| 200 | DNOVA-030 220V | 60 | 268 | 238 | 212 |
| 250 | DNOVA-040 220V | 68 | 268 | 285 | 212 |
| 300 | DNOVA-060 220V | 78 | 268 | 315 | 212 |
Materials of water butterfly valve DNOVA WBV1332N-2W-Fb-H body material - Cast iron GGG50, disk material - Stainless steel 316L, seal - NBR with electric actuator DNOVA 220V
| № | Name | Material |
| 1 | Body | cast iron GGG50 |
| 2 | Seat seal | NBR |
| 3 | Disk | stainless steel 316L |
| 4 | Stem | stainless steel AISI 416 |
| 5 | Pin | stainless steel AISI 420 |
| 6 | Bushing | PTFE |
| 7 | O-ring | NBR |
| 8 | Plate | carbon steel |
Main technical specifications of DNOVA series QT electric actuators:
| Power supply | 220 VAC, 380 VAC, 24 VDC |
| Limit switches | 2-Open/Closed 250V 10A |
| Additional limit switches 2 | 2-Open/Closed 250V 10A |
| Angle of rotation, ° | 90±5 |
| Internal thermal protection | Switching off at 110°C ± 5°C, switching on at 97°C ± 5°C |
| Visual position indicator | is |
| Ambient temperature, °C | -20 to +65 |
| Manual doubler | Hexagon (included) |
| Self-locking device | self-locking with worm and worm gears |
| Mechanical limiter | 2 external adjustable stops |
| Cable glands | 2xM18 |
| Enclosure protection class | IP67 |
| Lubrication | aluminum-based (type EP) |
| Body material | aluminum alloy with epoxy powder coating |
| Average life, closing/opening cycles | 30 000 |
Main parameters of DNOVA series QT electric actuators:
| Actuator model | QT-003 | QT-005 | QT-008 | QT-015 | QT-030 | QT-040 | QT-060 |
| Torque, Nm | 30 | 50 | 80 | 150 | 300 | 400 | 600 |
| Cycle time, sec. (rotation 90°) | 15 | 10 | 10 | 10 | 25 | 25 | 25 |
| Maximum reinforcement square size, mm | 11x11 | 14x14 | 17x17 | 17x17 | 27x27 | 27x27 | 27x27 |
| Degree of enclosure protection | IP67 | ||||||
| Material | aluminum alloy with epoxy powder coating | ||||||
| Type ISO flange | F03/ F05 | F05/ F07 | F05/ F07 | F05/ F07 | F10/ F12 | F10/ F12 | F10/ F12 |
| Weight, kg | 2,35 | 3,26 | 4,6 | 4,6 | 10 | 10 | 10 |
Dimensions of DNOVA electric actuators of QT 24 V series:
| Actuator model | Sizes | ||
| L, mm | H, mm | A, mm | |
| QT-003 | 140 | 118 | 109 |
| QT-005 | 166 | 122 | 118 |
| QT-008 | 200 | 128 | 133 |
| QT-015 | 200 | 128 | 133 |
| QT-030 | 269 | 155 | 174 |
| QT-040 | 269 | 155 | 174 |
| QT-060 | 269 | 155 | 174 |
- Body material
- Cast iron GGG50/EN-GJS-500-7
- Maximum allowable temperature
- 120 °C
- Connection type
- Compact flanged
- Control type
- Electric actuator
- Nominal pressure
- 16 bar
- Type of seal
- NBR
- Disc material
- Stainless steel AISI 316L/1.4404
- Voltage
- 24V
- Actuator cycle time
- 30s
- Valve feedback
- Limit switches
- Explosion-proof
- No
- Thermal protection
- No
- Pneumatic actuator
- No
- Manual override
- No
- Limit switches
- No
- 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