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 valve DNOVA is 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.
Material specification of disk gates DNOVA WCB-316L-EPDM:
|
№ |
Name |
Material |
|
1 |
Body |
Carbon steel WCB |
|
2 |
Cuff |
NBR (nitrile) |
|
3 |
Disc |
Stainless steel AISI 316L |
|
4 |
Stem |
Stainless steel AISI 316L |
|
5 |
Stud |
Stainless steel AISI 316L |
|
6 |
Bushing |
Stainless steel 420 |
|
7 |
Sealing ring |
NBR (nitrile) |
|
8 |
Handle |
Carbon steel |
Main technical specifications of DNOVA series QT electric actuators:
| Power supply | 220 VAC, 380 VAC, 24 VDC |
| Limit switches | 2-Open/Closed 250V 10A |
| Additional limit switches 2 | 2-Open/Closed 250V 10A |
| Angle of rotation, ° | 90±5 |
| Internal thermal protection | Switching off at 110°C ± 5°C, switching on at 97°C ± 5°C |
| Visual position indicator | is |
| Ambient temperature, °C | -20 to +65 |
| Manual doubler | Hexagon (included) |
| Self-locking device | self-locking with worm and worm gears |
| Mechanical limiter | 2 external adjustable stops |
| Cable glands | 2xM18 |
| Enclosure protection class | IP67 |
| Lubrication | aluminum-based (type EP) |
| Body material | aluminum alloy with epoxy powder coating |
| Average life, closing/opening cycles | 30 000 |
- Body material
- Carbon steel
- Maximum allowable temperature
- 120 °C
- 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
- 24V
- Actuator cycle time
- 30s
- Valve feedback
- Limit switches
- Explosion-proof
- No
- Thermal protection
- Yes
- Torque
- 300 Nm
- Pneumatic actuator
- No
- Manual override
- No
- 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