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
Butterfly valves are designed for use as shut-off or regulating valves for flow control in heat supply systems, water supply systems, in technological processes of food, chemical, oil and gas, pulp and paper and other industries.
Electric quarter-turn actuators DNOVA are designed for remote and local control of shut-off pipeline valves having a quarter-turn shut-off valve. They are used in various branches of national economy: in gas, oil, metallurgical, food industries, housing and utilities, etc.
Basic technical data and characteristics of butterfly valves
| Parameter | Value |
| Nominal diameter DN, mm | 40 – 300 |
| Nominal pressure PN, bar | 16 |
| Flow direction | Bidirectional |
| Operating medium temperature, °C | -20 to +120 |
| Ambient temperature, °C | -20 to +100 |
| Shut-off tightness | Class A |
| Working medium | Cold and hot water, oil-free and grease-free air, stationary air conditioning, mildly aggressive media, other media neutral to material |
| Body material | Cast iron GGG50 |
| Disc material | Cast iron GGG40 |
| Pipeline connection | interflange |
| Control type | Handle |
| Average service life, years | 5 |
| Average cycle life (open/close cycles) | 20,000 (under non-aggressive media and average pressure and temperature conditions) |
Dimensional parameters of water butterfly valve DNOVA GGG50-316L-EPDM body material - cast iron GGG50, disk material - stainless steel 316L, seal - EPDM with 1/4-turn electric actuator DNOVA QT-W (M) 380V:
| DN | Actuator model | A, mm | H, mm | D, mm | L, mm | L1, mm |
| DN40 | QT-W (M)-005 | 105 | 281 | Ø 120 | 215 | 310 |
| DN50 | QT-W (M)-005 | 161 | 281 | Ø 120 | 215 | 310 |
| DN65 | QT-W (M)-005 | 175 | 281 | Ø 120 | 215 | 310 |
| DN80 | QT-W (M)-005 | 181 | 281 | Ø 120 | 215 | 310 |
| DN100 | QT-W (M)-010 | 200 | 281 | Ø 120 | 215 | 310 |
| DN125 | QT-W (M)-010 | 213 | 281 | Ø 120 | 215 | 310 |
| DN150 | QT-W (M)-010 | 226 | 281 | Ø 120 | 215 | 310 |
| DN200 | QT-W (M)-030 | 260 | 276 | Ø 180 | 270 | 350 |
| DN250 | QT-W (M)-040 | 292 | 276 | Ø 180 | 270 | 350 |
| DN300 | QT-W (M)-060 | 337 | 300 | Ø 250 | 311 | 410 |
Materials of water butterfly valve DNOVA GGG50-316L-EPDM body material - cast iron GGG50, disk material - stainless steel 316L, seal - EPDM with 1/4-turn electric actuator DNOVA QT-W (M) 380V:
|
№ |
Name |
Material |
|
1 |
Body |
Cast iron GGG50 |
|
2 |
Disc |
Steel 316L |
|
3 |
Seat seal |
EPDM |
|
4 |
Upper stem |
Steel 316L |
|
5 |
Lower stem |
Steel 316L |
|
6, 11 |
Retaining ring |
Steel AISI 201 |
|
7 |
Duster |
NBR |
|
8 |
Stem gasket |
NBR |
|
9 |
Bushing |
Steel AISI 201 |
|
10 |
Plug |
Plastic |
Characteristics of actuators DNOVA QT-W (M) 380V:
| Actuator model |
Torque, Nm |
Cycle time, sec |
Power, W |
| QT-W (M)-005 380V | 50 | 30 | 25 |
| QT-W (M)-010 380V | 100 | 30 | 30 |
| QT-W (M)-015 380V | 150 | 30 | 40 |
| QT-W (M)-020 380V | 200 | 30 | 50 |
| QT-W (M)-030 380V | 300 | 30 | 60 |
| QT-W (M)-040 380V | 400 | 30 | 90 |
| QT-W (M)-060 380V | 600 | 30 | 120 |
| QT-W (M)-120 380V | 1200 | 30 | 180 |
| QT-W (M)-180 380V | 1800 | 30 | 250 |
| QT-W (M)-300 380V | 3000 | 60 | 370 |
| QT-W (M)-500 380V | 5000 | 60 | 550 |
| Actuator model |
Current, A |
Weight, kg |
Stem size square, mm |
| QT-W (M)-005 380V | 0,35 | 7,6 | 17x17 |
| QT-W (M)-010 380V | 0,48 | 7,8 | 17x17 |
| QT-W (M)-015 380V | 0,55 | 8 | 17x17 |
| QT-W (M)-020 380V | 0,65 | 12,7 | 22x22 |
| QT-W (M)-030 380V | 0,75 | 12,8 | 22x22 |
| QT-W (M)-040 380V | 0,95 | 13 | 22x22 |
| QT-W (M)-060 380V | 1,1 | 21,2 | 27x27 |
| QT-W (M)-120 380V | 1,3 | 23,2 | 27x27 |
| QT-W (M)-180 380V | 1,5 | 23,5 | 27x27 |
| QT-W (M)-300 380V | 1,6 | 37,5 | 36x36 |
| QT-W (M)-500 380V | 1,7 | 38 | 36x36 |
- Body material
- Cast iron GGG50/EN-GJS-500-7
- Connection type
- Compact flanged
- Control type
- Electric actuator
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Stainless steel AISI 316L/1.4404
- Voltage
- 380V
- Actuator cycle time
- 3s
- Explosion-proof
- No
- Torque
- 59 Nm
- Pneumatic actuator
- 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