How it works
Modulating 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 to be used as shut-off or control valves for managing flows in heating systems, water supply systems, and technological processes in the food, chemical, oil and gas, pulp and paper, and other industries.
Quarter-turn electric actuators of the DNOVA QT series are designed for remote and local control of the rotation of the shut-off element from 0° to 270°, for types such as ball valves, etc. They are widely used in various sectors of the economy: gas, oil, metallurgy, food industry, housing, and utilities, etc.
The electric actuators are installed directly on pipeline fittings. The installation dimensions comply with the international standard ISO 05211 / DIN3337. Four micro switches are used to limit the stroke of the output shaft at the end positions of the working element of the fittings. The electric actuators are designed to operate in an intermittent duty cycle S2.
Technical parameters water butterfly valve DNOVA 316L-316L-VITON body material - stainless steel aisi 316l, disk material - stainless steel aisi 316l, seal - Viton with electric actuator DNOVA 220V, feedback sensor and input control signal 4-20mA:
| Nominal diameter DN, mm | 50 – 300 |
| Nominal pressure PN, MPa (kg/cm2) | 1,6 (16) |
| Flow direction | Two-way |
| Ambient temperature t, °C | -20 to +200: for VITON |
| Working media | VITON: mineral and vegetable oils, animal fats, greases and fuels, hot air and steam |
| Pipeline connection | Interflanged |
Dimensions and installation dimensions water butterfly valve DNOVA 316L-316L-VITON body material - stainless steel aisi 316l, disk material - stainless steel aisi 316l, seal - Viton with electric actuator DNOVA 220V, feedback sensor and input control signal 4-20mA:
|
Model |
H1, mm |
H2, mm |
H3, mm |
L, mm |
S, mm |
ØK, mm |
C, mm |
n-Ø mm |
ISO 5211 |
Weight, kg |
|
DN50 |
76 |
162 |
32 |
45 |
9 |
50 |
125 |
4x18 |
F05 |
2 |
|
DN65 |
89 |
175 |
32 |
48 |
9 |
50 |
145 |
4x18 |
F05 |
2.3 |
|
DN80 |
95 |
181 |
32 |
49 |
9 |
50 |
160 |
4x18 |
F05 |
2.6 |
|
DN100 |
114 |
200 |
32 |
55 |
11 |
50 |
180 |
4x18 |
F07 |
4.1 |
|
DN125 |
127 |
213 |
32 |
58 |
14 |
70 |
210 |
4x18 |
F07 |
5.2 |
|
DN150 |
140 |
225 |
32 |
59 |
14 |
70 |
240 |
8x23 |
F07 |
6.6 |
|
DN200 |
177 |
260 |
36 |
64 |
17 |
102 |
295 |
12x23 |
F10 |
11.5 |
|
DN250 |
203 |
292 |
36 |
70 |
22 |
102 |
355 |
12x27 |
F10 |
17.3 |
|
DN300 |
242 |
337 |
36 |
80 |
22 |
125 |
410 |
12x27 |
F10 |
27.8 |
Materials specification of DNOVA disk gate valves DN50-300:
| Name | Material |
| Body | Stainless steel AISI 316L |
| Cuff | VITON |
| Disk | Steel AISI316L |
| Stem | Steel AISI316L |
| Stud | Steel AISI316L |
| Bushing | PTFE |
| O-ring | Nitrile NBR |
| Plate, handle | Carbon steel |
Maximum torques of DNOVA DN50-300 disk gate valves:
| DN | Torque at 16 bar pressure, Nm |
| 50 | 50 |
| 65 | 50 |
| 80 | 50 |
| 100 | 50 |
| 125 | 80 |
| 150 | 100 |
| 200 | 300 |
| 250 | 400 |
| 300 | 400 |
Parameters of DNOVA electric actuators 220V 4-20mA:
| Actuator model | Maximum torque, Nm | Working time, sec | Power, W | Current, A | Weight, kg | Stem size square, mm |
| DNOVA-008 | 80 | 30 | 10 | 0,25 | 3,6 | 11 or 14 |
| DNOVA-010 | 100 | 30 | 15 | 0,35 | 4,6 | 14 or 17 |
| DNOVA-015 | 150 | 30 | 15 | 0,37 | 4,6 | 14 or 17 |
| DNOVA-040 | 400 | 30 | 60 | 0,33 | 13,8 | 22 |
- Body material
- Stainless steel AISI 316
- Maximum allowable temperature
- 200 °C
- Connection type
- Compact flanged
- Control type
- Electric actuator
- Nominal pressure
- 16 bar
- Type of seal
- Viton
- Disc material
- Stainless steel AISI 316L/1.4404
- Voltage
- 220V
- Actuator cycle time
- 30s
- Valve feedback
- Limit switches
- Explosion-proof
- No
- Thermal protection
- Yes
- Torque
- 100 Nm
- Electropneumatic positioner
- No
- 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