How it works
Double-acting rotary 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.
Pneumatic actuators DNOVA are designed for automation of industrial valve control process with maximum torque up to 2128 Nm. Pneumatic actuators can be mounted on various quarter-turn valves according to the instructions. Flanges must comply with iso 5211.
Technical parameters of water butterfly valve DNOVA 316L-316L-VITON body material - stainless steel aisi 316l, disk material - stainless steel AISI 316L, seal - Viton with pneumatic actuator DNOVA DA double-action:
|
Nominal diameter DN, mm |
50–300 |
|
Nominal pressure PN, MPa (kg/cm²) |
1.6 (16) |
|
Flow direction |
Two-way |
|
Ambient temperature t, °C |
From -20 to +200: for VITON |
|
Working medium |
VITON: mineral and vegetable oils, animal fats, greases and fuels, hot air and steam |
|
Connection to pipeline |
Interflange |
Main parameters of pneumatic actuators:
| Nominal pressure PN, MPa (kg/cm2) | 1,2 (12) | |
| Operating pressure, bar | 2…8 | |
| Operating medium | Filtered compressed air or non-aggressive gases, oils | |
| Maximum particle diameter | less than 30 µm2 | |
| Operating temperature t, °C | • from -20 to +80 • from -40 to +80 (low-temperature version) • from -20 to +160 (in dry air) |
|
| Adjustment range | ± 5° for rotation at 0° and 90° | |
| Manual duplication | yes | |
| Position indicator | open/closed | |
| Operating environment | indoors and outdoors. (All internal and external parts have an anti-corrosion coating) | |
- Body material
- Stainless steel AISI 316
- Maximum allowable temperature
- 200 °C
- Connection type
- Compact flanged
- Nominal pressure
- 16 bar
- Type of seal
- Viton
- Disc material
- Stainless steel AISI 316L/1.4404
- Torque
- 420 Nm
- Pneumatic actuator
- Yes
- 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.