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
Applications
Media and industries
- Water
- Air
- Slightly Aggressive Media
- Neutral Media
- Water Supply
- Heat Supply
DNOVA butterfly valves are intended for use as shut-off or control valves for flow control in heat supply systems, water supply systems, in technological processes in the food, chemical, oil and gas, pulp and paper and other industries.
Electric quarter-turn actuators DNOVA QT2-N-xEM-O1-x-U1 with thermal protection and heater are designed for remote and local control of shut-off pipeline valves with a quarter-turn shut-off element. They are used in various sectors of the national economy: in the gas, oil, metallurgy, food industry, in housing and communal services, etc.
Butterfly valves DNOVA WBV1413E-2W-Fb-H DN65-150 PN16, body - cast iron GGG50, disc - cast iron GGG40, seal - EPDM, with 1/4-turn electric actuator QT-N-020EM-O1-24VDC-U1 24V HARK
Technical parameters of Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
| Parameter | Value |
| Nominal diameter DN, mm | 40 – 300 |
| Nominal pressure PN, bar | 16 |
| Flow direction | Bidirectional |
| Operating medium temperature, °C | -20 to +120 |
| Ambient temperature, °C | -20 to +100 |
| Shut-off tightness | Class A |
| Working medium | Cold and hot water, oil-free and grease-free air, stationary air conditioning, mildly aggressive media, other media neutral to material |
| Body material | Cast iron GGG50 |
| Disc material | Cast iron GGG40 |
| Pipeline connection | interflange |
| Control type | Handle |
| Average service life, years | 5 |
| Average cycle life (open/close cycles) | 20,000 (under non-aggressive media and average pressure and temperature conditions) |
Gate dimensions DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
| DN | H | H1 | H2 | L | L1 | ØDm | ØDk | D2 (flow section) |
| mm | ||||||||
| 40 | 146 | 74 | 25 | 43 | 216 | 73 | 75 | 50 |
| DN | H | H1 | H2 | L | L1 | ØDm | ØDk |
| mm | |||||||
| 50 | 146 | 74 | 25 | 43 | 216 | 73 | 84.5 |
| 65 | 156 | 80 | 25 | 46 | 216 | 86 | 104.5 |
| 80 | 163 | 100 | 25 | 46 | 216 | 103 | 123.5 |
| 100 | 180 | 116 | 25 | 52 | 255 | 131 | 139.5 |
| 125 | 189 | 123 | 25 | 56 | 255 | 155 | 169.5 |
| 150 | 206 | 137 | 25 | 56 | 255 | 183 | 196 |
| 200 | 232 | 165 | 35 | 60 | 370 | 235 | 247 |
| 250 | 275 | 203 | 35 | 68 | 370 | 286 | 304 |
| 300 | 314 | 235 | 35 | 78 | 370 | 338 | 358 |
Sketch of gates DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
Materials of parts of rotary disc valves DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
| № | Name | Material |
| 1 | Body | cast iron GGG50 |
| 2 | Cuff | EPDM |
| 3 | Disk | cast iron GGG40 |
| 4 | Stock | stainless steel SS 416/2Cr13 |
| 5 | Hairpin | stainless steel AISI 316L |
| 6 | Sleeve | NBR |
| 7 | Sealing ring | NBR |
| 8 | Fixing plate | carbon steel |
| 9 | Handle with lock | carbon steel |
Sketch of materials for rotary disc valves DNOVA Water Butterfly Valve DNOVA WBV1432E-2W-Fb-H
Image of electric drives DNOVA QT-N-020EM-O1-24VDC-U1 HARK
Technical electric drives DNOVA QT-N-020EM-O1-24VDC-U1 HARK:
| Electric drive type | quarter turn |
| Engine type | asynchronous |
| Rotation angle, ° | 90±5 |
| Body material | aluminum alloy, epoxy powder coated |
| Shaft material | alloy steel |
| Supply voltage | 24V/DC |
| Cable entry | gland 2xM18 |
| Connection type | ISO 5211 |
| Self-locking device | self-locking worm and worm gear |
| Automatic shut-off in the open, closed and jammed positions |
2 limit switches + 2 additional switches (dry contact); |
| Thermal protection |
switch on at 120°C ±5°C; switch off at 97°C ±5°C |
| Mechanical limitation of output shaft rotation | 2 external adjustable stoppers |
| Housing protection class | IP67 |
| Noise level, dB | ≤ 50 |
| Heater power, W | 5 |
| Ambient temperature, °C | from -20 to +70 |
| Ambient humidity | ≤95% (25°C) |
| Explosion protection of the housing | No |
Sketch of overall dimensions of electric drives DNOVA QT-N-020EM-O1-24VDC-U1 HARK:
Dimensions and sizes of electric drives DNOVA QT-N-020EM-O1-24VDC-U1 HARK:
| Dimensions, mm | ISO 5211 | ||||||
| L | H | A | B | C | D | Rod size, square | |
| 241.8 | 157.5 | 119 | 118 | 112.3 | 26 | 22x22 | F07/F10 |
Scheme of the device of electric drives DNOVA QT-N-020EM-O1-24VDC-U1 HARK:
Schematic diagram of the electric drives DNOVA QT-N-xEM-O1-x-U1 HARK:
| Item No. | Name |
| 1 | Position indicator |
| 2 | Top cover |
| 3 | Control board |
| 4 | Capacitor |
| 5 | Push cams |
| 6 | Output shaft with worm wheel |
| 7 | Frame |
| 8 | Output shaft travel limiters |
| 9 | Worm shaft |
| 10 | Electric motor |
| 11 | Reducer |
| 12 | Gearbox cover |
- Body material
- Cast iron GGG50/EN-GJS-500-7
- Maximum allowable temperature
- 110 °C
- Connection type
- Compact flanged
- Control type
- Electric actuator
- Operating environment
- Water, Air, Slightly Aggressive Media, and Neutral Media
- Applications
- Water Supply and Heat Supply
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Cast iron GGG40/EN-GJS-400-15
- Explosion-proof
- No
- Thermal protection
- Yes
- Manual override
- Hexagon
- Limit switches
- Yes
- Type of electric actuator
- Quarter-turn
- Supply voltage
- 24 V
- Angle of rotation
- 90°
- 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