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 al-316l-epdm are designed for use as shut-off or regulating valves for flow control in heat and 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 double-acting rotary actuators and pneumatic rotary actuators with return springs are designed to automate the process of controlling industrial shut-off valves - gates, ball valves. DNOVA pneumatic actuators are designed for operation both indoors and outdoors. All internal and external parts are anticorrosive coated.
Technical parameters of water butterfly valve DNOVA al-316l-epdm-DNOVA-da, body material - aluminium alloy, disk material - stainless steel AISI 316L, seal - EPDM, pneumatic actuator operated:
|
Nominal diameter DN, mm |
25–32 |
|
Operating pressure PN, bar |
16 |
|
Working medium temperature t, °C |
From -20 to +120 |
|
Working medium |
Cold and hot water, oil-free and grease-free air, other media neutral to the material |
|
Flow direction |
Two-way |
|
Body material |
Aluminum alloy |
|
Type of control |
Manual (handle) |
|
Additional option |
Electric or pneumatic actuator installation possible (ISO 5211-2001) |
|
Nominal pressure PN, MPa (kg/cm²) |
1.2 (12) |
|
Operating pressure, bar |
2...8 |
|
Working medium |
Filtered compressed air or non-aggressive gases, oils |
|
Maximum particle diameter |
Less than 30 µm² |
|
Operating temperature, °C |
-20 to +80 |
|
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 are anti-corrosion coated) |
- Body material
- Aluminium alloy
- Maximum allowable temperature
- 120 °C
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Stainless steel AISI 316L/1.4404
- Valve feedback
- No
- Explosion-proof
- No
- Torque
- 25 Nm
- Pneumatic actuator
- No
- Manual override
- Yes
- 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