Description
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.
Electric quarter-turn actuators DNOVA with thermal protection and heater 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.
Technical parameters of water butterfly valve DNOVA WBV1632E-2W-Fb-H, body material - cast iron QT450, disk material - stainless steel AISI 316L, seal - EPDM, electric actuator QT-N-EM-O1-220VAC-U1 HARK:
|
Parameter |
Value |
|
Nominal diameter DN, mm |
250–300 |
|
Operating pressure PN, bar |
16 |
|
Working medium temperature t, °C |
From -20 to +110 |
|
Working medium |
Water, steam, aggressive media, and abrasive liquids (e.g., cement, sand, bauxite, etc.) |
|
Flow direction |
Two-way |
|
Tightness class |
Class A |
|
Connection to pipeline |
Interflanged |
|
Body material |
Cast iron QT450 |
|
Seal material |
EPDM with wear-resistant coating |
|
Service life, years |
10 |
Dimensions and sizes of water butterfly valve DNOVA WBV1632E-2W-Fb-H, body material - cast iron QT450, disk material - stainless steel AISI 316L, seal - EPDM, electric actuator QT-N-EM-O1-220VAC-U1 HARK:
|
DN |
Model |
Size, mm |
|||||
|
H |
H1 |
D1 |
D2 |
n-d |
L |
||
|
40 |
QT-N-020EMT |
147 |
70 |
125 |
92 |
4- Ø23 |
241.8 |
|
50 |
QT-N-020EMT |
147 |
70 |
125 |
92 |
4- Ø23 |
241.8 |
|
65 |
QT-N-020EMT |
155 |
76 |
145 |
110 |
4- Ø23 |
241.8 |
|
80 |
QT-N-020EMT |
164 |
92 |
160 |
121 |
8- Ø20 |
241.8 |
|
100 |
QT-N-020EMT |
175 |
106 |
180 |
153 |
4 - Ø23 |
241.8 |
|
125 |
QT-N-020EMT |
194 |
119 |
210 |
176 |
4 - Ø23 |
241.8 |
|
150 |
QT-N-020EMT |
206 |
132 |
240 |
207 |
4 - Ø25 |
241.8 |
|
200 |
QT-N-030EMT |
237 |
162 |
295 |
259 |
4 - Ø25 |
241.8 |
Materials of parts of water butterfly valve DNOVA WBV1632E-2W-Fb-H, body material - cast iron QT450, disk material - stainless steel AISI 316L, seal - EPDM, electric actuator QT-N-EM-O1-220VAC-U1 HARK:
|
№ |
Part name |
Material |
|
1 |
Body |
Cast iron QT450 |
|
2 |
Disc |
Stainless steel 316L |
|
3 |
Seat seal |
EPDM + wear-resistant material (siliclone + graphite) |
|
4 |
Stem |
Steel 2Cr13 |
Technical characteristics of electric actuators DNOVA:
|
Parameter |
Value |
|
Type of electric actuator |
Quarter-turn |
|
Type of motor |
Asynchronous |
|
Angle of rotation, ° |
90±5 |
|
Body material |
Aluminum alloy with epoxy powder coating |
|
Shaft material |
Alloy steel |
|
Supply voltage |
24V/DC |
|
Cable entry |
Sealed gland 2xM18 |
|
Type of connection |
ISO 5211 |
|
Self-locking mechanism |
Worm and worm gear self-locking |
|
Automatic shut-off |
2 limit switches (open/closed positions and in case of jamming) |
|
Thermal protection |
Activation at 120°C ±5°C |
|
Insulation class |
F |
|
Mechanical output shaft rotation limit |
2 external adjustable stops |
|
Protection rating |
IP67 |
|
Noise level, dB |
≤ 50 |
|
Heater power, W |
5 |
|
Ambient temperature, °C |
From -20 to +70 |
|
Ambient humidity |
≤ 95% (at 25°C) |
|
Explosion-proof protection |
No |
Dimensions and sizes of electric actuators DNOVA:
| Size, mm | ISO 5211 | ||||||
| L | H | A | B | C | D | Stem size, square | |
| 241,8 | 157,5 | 119 | 118 | 112,3 | 26 | 22x22 | F07/F10 |
Device diagram of actuators DNOVA QT-N-EM-O1-220VAC-U1 HARK:
|
№ |
Name |
|
1 |
Position indicator |
|
2 |
Upper cover |
|
3 |
Control board |
|
4 |
Capacitor |
|
5 |
Actuating cam followers |
|
6 |
Output shaft with worm gear |
|
7 |
Body |
|
8 |
Output shaft travel limiters |
|
9 |
Worm shaft |
|
10 |
Electric motor |
|
11 |
Gearbox |
|
12 |
Gearbox cover |
Specifications
Delivery
The cost and delivery time for your order depend on several factors, including the specific product you are ordering, the quantity, and the country of destination. Each product may have different manufacturing lead times and shipping requirements, which can affect the overall delivery schedule.
To get the most accurate and up-to-date information on delivery costs and timelines, we recommend contacting our sales managers. They will be happy to provide you with a detailed quote and estimated delivery time based on your specific requirements.
Please feel free to reach out to us for any questions or further assistance regarding your order.