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
- Acids
- Alkalis
- Chemical Environment
- Water Supply
- Heating
- Chemical Industry
- Oil And Gas Industry
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. 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.
Electric quarter-turn actuators are designed for remote and local control of 0° ~ 270° rotation of a shut-off valve of such types as ball valve, etc.
Operating principle: electric actuators are mounted directly on pipeline valves. The mounting dimensions comply with the international standard ISO 05211 / DIN3337. Four microswitches are used to limit the travel of the output shaft to the end positions of the valve actuator. The actuators are designed for operation in nominal short-time mode S2.
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.
Technical characteristics of water butterfly valve DNOVA WBV3434Pf-2W-Fb-H, body material - Carbon steel, disk material - Carbon steel, seal - PTFE, electric actuator QT-EX-xEM-O2 220V:
|
Parameter |
Value |
|
Type of gate |
Rotary disc |
|
Diameter |
50-250 mm |
|
Nominal pressure |
16 bar |
|
Working medium temperature |
From -10 to +150°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 |
|
Service life |
10 years |
|
Warranty |
12 months |
Technical characteristics of quarter-turn actuators DNOVA QT-EX-xEM-O2 220V:
|
Parameter |
Value |
|
Type of electric actuator |
Quarter-turn |
|
Supply voltage |
220V |
|
Ambient temperature |
From -20 to +60 °C |
|
Application |
Water supply, heat supply, chemical industry, oil and gas industry, food industry, pulp and paper industry |
|
Explosion protection |
ExdIICT4 |
|
Type of connection |
ISO 5211 |
Dimensions and installation sizes of water butterfly valve DNOVA WBV3434Pf-2W-Fb-H, body material - Carbon steel, disk material - Carbon steel, seal - PTFE, electric actuator QT-EX-xEM-O2 220V:
| 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 |
Overall and installation sizes of quarter-turn actuators DNOVA QT-EX-xEM-O2 220V:
| Model | X, mm | Z, mm | Y, mm |
| EX-010 | 255 | 265 | 170 |
| EX-015 | 255 | 265 | 170 |
| EX-020 | 280 | 270 | 200 |
| EX-030 | 310 | 310 | 200 |
| EX-040 | 310 | 310 | 200 |
| EX-050 | 310 | 310 | 200 |
| EX-060 | 420 | 350 | 350 |
| EX-100 | 420 | 350 | 350 |
| EX-200 | 420 | 350 | 350 |
Materials of water butterfly valve DNOVA WBV3434Pf-2W-Fb-H, body material - Carbon steel, disk material - Carbon steel, seal - PTFE, electric actuator QT-EX-xEM-O2 220V:
| № | 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 |
- Body material
- Carbon steel
- Maximum allowable temperature
- 180 °C
- Connection type
- Compact flanged
- Control type
- Electric actuator
- Operating environment
- Water, Acids, Alkalis, and Chemical Environment
- Applications
- Water Supply, Heating, Chemical Industry, Oil And Gas Industry, Food Industry, and Pulp And Paper Industry
- Nominal pressure
- 16 bar
- Type of seal
- PTFE
- Disc material
- Carbon steel
- Explosion-proof
- Yes
- Manual override
- Handwheel
- Limit switches
- Yes
- Type of electric actuator
- Quarter-turn
- 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