How it works
Modulating 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
- Heat Supply
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. 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 controlled by DNOVA QT series are designed for remote and local control of 0° ~ 270° rotation of a shut-off valve of such types as ball valves, etc. They are widely used in various branches of national economy: in gas, oil, metallurgical, food industry, housing and communal services, etc.
Technical parameters of water butterfly valve DNOVA WBV1631N-2W-Fb-H, body material - cast iron QT450, disk material - Stainless steel AISI 304, seal - NBR, electric actuator QT-N-EM-A1-220VAC-U1 220V:
|
Parameter |
Value |
|
Nominal pressure, bar |
16 |
|
Type of connection |
Interflanged (threaded lugs) |
|
Type of control |
Electric actuator |
|
Application |
Water supply, heat supply |
|
Working medium temperature, °C |
From -20 to 150 |
|
Tightness class |
A |
|
Country of manufacture |
China |
Dimensions and sizes of water butterfly valve DNOVA WBV1631N-2W-Fb-H, body material - cast iron QT450, disk material - Stainless steel AISI 304, seal - NBR, electric actuator QT-N-EM-A1-220VAC-U1 220V:
| Model | H, mm | X, mm | Z, mm |
| DN80 | 248 | 160 | 121 |
| DN100 | 277.5 | 189 | 129 |
| DN125 | 317.5 | 189 | 129 |
Materials of parts of water butterfly valve DNOVA WBV1631N-2W-Fb-H, body material - cast iron QT450, disk material - Stainless steel AISI 304, seal - NBR, electric actuator QT-N-EM-A1-220VAC-U1 220V:
|
№ |
Part name |
Material |
|
1 |
Body |
Cast iron QT450 |
|
2 |
Disc |
Stainless steel 304 |
|
3 |
Seat seal |
NBR |
|
4 |
Stem |
Stainless steel SS 316 |
Technical parameters of electric actuators DNOVA:
| Name | Value |
| Actuator model | QT-N-EM-A1-220VAC-U1 220V |
| Supply voltage | 220V |
Dimensions and sizes of electric actuators DNOVA:
| Actuator model | QT-N-005EM-B1-220VAC | QT-N-010EM-B1-220VAC | QT-N-015EM-B1-220VAC |
| X, mm | 160 | 189 | 189 |
| Y, mm | 146 | 163 | 163 |
| Z, mm | 121 | 129 | 129 |
| ⌀A | ⌀70 | ⌀70 | ⌀70 |
| N-B | 4-M8 | 4-M8 | 4-M8 |
| ⌀C | ⌀50 | ⌀50 | ⌀50 |
| N-D | 4-M6 | 4-M6 | 4-M6 |
| E, mm | 66 | 100 | 100 |
| F, mm | 66 | 90 | 90 |
| G, mm | 114 | 114 | 114 |
| H, mm | 40 | 40 | 40 |
| I, mm | 100 | 100 | 100 |
| MxM | 14x14 | 17x17 | 17x17 |
Device of electric actuators DNOVA QT-N-EM-A1-220VAC-U1 220V:
|
№ |
Part name |
|
1 |
Output shaft |
|
2 |
Cable gland |
|
3 |
Mechanical limiter |
|
4 |
Body |
|
5 |
Cover |
|
6 |
Inspection window |
|
7 |
Dust protection |
- Body material
- cast iron QT450
- Maximum allowable temperature
- 90 °C
- Connection type
- Interflange (threaded lugs)
- Control type
- Electric actuator
- Operating environment
- Water, Air, and Neutral Media
- Applications
- Water Supply and Heat Supply
- Nominal pressure
- 16 bar
- Type of seal
- NBR
- Disc material
- Stainless steel AISI 304
- Explosion-proof
- No
- Manual override
- Hexagon
- Limit switches
- Yes
- Type of electric actuator
- Quarter-turn
- Control signal
- 4-20 mA
- Supply voltage
- 220 V
- Angle of rotation
- 90°
- 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