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 DNOVA 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. Butterfly valves should be installed only between collar flanges.
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, metallurgy, food industry, 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) |
Materials of parts of rotary disc valves DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
| № | Name | Material |
| 1 | Body | cast iron GGG50 |
| 2 | Cuff | EPDM |
| 3 | Disk | cast iron GGG40 |
| 4 | Stock | stainless steel SS 416/2Cr13 |
| 5 | Hairpin | stainless steel AISI 316L |
| 6 | Sleeve | NBR |
| 7 | Sealing ring | NBR |
| 8 | Fixing plate | carbon steel |
| 9 | Handle with lock | carbon steel |
Sketch of materials for rotary disc valves DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
Characteristics of actuators DNOVA QT-W (M) EX 220V:
| Actuator model |
Torque, Nm |
Cycle time, sec |
Power, W |
| QT-W (M)-005 220V | 50 | 30 | 25 |
| QT-W (M)-010 220V | 100 | 30 | 30 |
| QT-W (M)-015 220V | 150 | 30 | 40 |
| QT-W (M)-020 220V | 200 | 30 | 50 |
| QT-W (M)-030 220V | 300 | 30 | 60 |
| QT-W (M)-040 220V | 400 | 30 | 90 |
| QT-W (M)-060 220V | 600 | 30 | 120 |
| QT-W (M)-120 220V | 1200 | 30 | 180 |
| QT-W (M)-180 220V | 1800 | 30 | 250 |
| QT-W (M)-300 220V | 3000 | 60 | 370 |
| QT-W (M)-500 220V | 5000 | 60 | 550 |
| Actuator model |
Current, A |
Weight, kg |
Stem size square, mm |
| QT-W (M)-005 220V | 0,35 | 7,6 | 17x17 |
| QT-W (M)-010 220V | 0,48 | 7,8 | 17x17 |
| QT-W (M)-015 220V | 0,55 | 8 | 17x17 |
| QT-W (M)-020 220V | 0,65 | 12,7 | 22x22 |
| QT-W (M)-030 220V | 0,75 | 12,8 | 22x22 |
| QT-W (M)-040 220V | 0,95 | 13 | 22x22 |
| QT-W (M)-060 220V | 1,1 | 21,2 | 27x27 |
| QT-W (M)-120 220V | 1,3 | 23,2 | 27x27 |
| QT-W (M)-180 220V | 1,5 | 23,5 | 27x27 |
| QT-W (M)-300 220V | 1,6 | 37,5 | 36x36 |
| QT-W (M)-500 220V | 1,7 | 38 | 36x36 |
- Body material
- Carbon steel
- 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
- 110/220V
- Actuator cycle time
- 30s
- Explosion-proof
- Yes
- Torque
- 50 Nm
- 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