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
- 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 of explosion-proof version are designed for remote and local control of 0° ~ 270° rotation of a shut-off valve 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 WBV1631N-2W-Fb-H, body material - cast iron QT450, disk material - Stainless steel AISI 304, seal - NBR, electric actuator QT-EX-EM-O2-220VAC-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-EX-EM-O2-220VAC-U1 220V:
| Model | H, mm | L, mm | H1, mm |
| DN100 | 277.5 | 255 | 265 |
| DN125 | 317.5 | 255 | 265 |
| DN150 | 354.5 | 280 | 270 |
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-EX-EM-O2-220VAC-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-EX-EM-O2-220VAC-U1 220V |
| Supply voltage |
220V |
Dimensions and sizes of electric actuators DNOVA:
| 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 | H | 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 |
Device of electric actuators DNOVA QT-EX-EM-O2-220VAC-U1 220V:
|
№ |
Part name |
Material |
|
1 |
Actuator housing |
Aluminum |
|
2, 23, 33, 38, 40, 64 |
Shaft |
Steel |
|
3, 39, 46, 48, 51, 66 |
Sealing ring |
Oil-resistant rubber |
|
4, 27 |
Mounting bracket |
Steel Q235 |
|
5 |
Insulating gasket |
Textolite |
|
6, 9, 16 |
Bracket mounting screw |
Steel |
|
7, 1 |
Plate |
Steel Q235 |
|
8 |
Plug screw |
Aluminum |
|
11, 14 |
Limit switch cam |
Steel Q235 |
|
12, 13 |
Limit switch group |
- |
|
15, 32 |
Bushing |
Brass H62 |
|
16, 30, 35, 41, 44, 61 |
Screw |
Steel |
|
17, 18 |
Disc |
Steel Q235 |
|
19 |
Mechanical limit cam |
Steel Q235 |
|
20 |
Actuator housing |
Aluminum |
|
21, 25 |
Mounting screw |
Steel |
|
22 |
Gland of sight glass |
Steel |
|
24 |
Indicator plate |
Aluminum |
|
26 |
Capacitor |
CEM 2GR 220nJ |
|
28 |
Terminal block |
1Pcs T |
|
29 |
Heating element |
NTA-1/005 |
|
31, 36 |
Washer |
Stainless steel |
|
34 |
Through cover |
MHQ50 |
|
37, 39 |
Locking washer, sealing ring |
Steel |
|
42 |
Torque switch group |
- |
|
43, 48 |
Torque switch mechanism |
Steel Q235 |
|
45 |
Handwheel cover |
Aluminum |
|
47, 69 |
First-stage gear |
Zinc alloy |
|
49 |
Limiting screw |
Steel |
|
50 |
Stud |
Steel |
|
52 |
Coupling handle |
Steel |
|
53 |
Fork block |
Aluminum |
|
54 |
Thrust washer |
Zinc alloy |
|
55, 56 |
Separator fork |
Zinc alloy |
|
57 |
Retaining ring |
Steel |
|
58, 6 |
Main gear, disc |
Zinc alloy |
|
59, 68 |
Worm gear (2nd & 1st stage) |
Steel 40Cr |
|
62, 67 |
Gland |
Aluminum |
|
63 |
Motor |
- |
|
65 |
Clutch |
Steel ZG20 |
- 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
- 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