How it works
Electric quarter-turn actuator
Two-way ball valve
Construction
Parts and materials
Applications
Media and industries
- Water
- Steam
- Petroleum Products
- Neutral Media
- Gaseous Media
- Water Supply
Ball valves are used as shut-off valves in heat and water supply systems, in steam, fuel and pneumatic systems with compressed air and neutral gases. Installation of valves of this series is possible in systems transporting liquid and gaseous media (water, oil, oils, steam, air, alcohols, glycol, etc.), not aggressive to the materials of the valve.
The working flow is shut off by means of a locking element, which is a ball with a through cylindrical hole. With the help of a handle mounted on the body, the ball is rotated around the axis. It is sufficient to turn it by 90 degrees to completely shut off the flow.
Electric quarter-turn actuators 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, metallurgical, food industry, housing and communal services, etc.
Dimensions and dimensions of ball valves DNOVA BV3131P(3pc)-FP-W-ISO-H LONG full bore
| DN |
Model electronic drive |
Size | ||||
| d | D | B | L | Y | ||
| 10 | QT-N-020EMT | 12 | 17.2 | 2.1 | 130 | 241.8 |
| 15 | 15 | 21.3 | 2.1 | 150 | 241.8 | |
| 20 | 20 | 26.9 | 2.1 | 155 | 241.8 | |
| 25 | 25 | 33.7 | 2.8 | 186 | 241.8 | |
| 32 | 32 | 42.4 | 2.8 | 195 | 241.8 | |
| 40 | 38 | 48.3 | 2.8 | 231 | 241.8 | |
| 50 | 50 | 60.3 | 2.8 | 243 | 241.8 | |
| 65 | 64 | 76.1 | 3 | 290 | 241.8 | |
| 80 | 76 | 88.9 | 3 | 302 | 241.8 | |
| 100 | 100 | 114.3 | 3 | 326 | 241.8 | |
| 125 | QT-N-040EMT | 125 | 141.3 | 3.4 | 360 | 241.8 |
| 150 | QT-N-060EMT | 150 | 168.3 | 3.4 | 390 | 241.8 |
Sketch of dimensions and dimensions of ball valves DNOVA BV3131P(3pc)-FP-W-ISO-H LONG full bore
Materials of ball valve parts DNOVA BV3131P(3pc)-FP-W-ISO-H LONG full bore
| № | Name | Material |
| 1 | Size | stainless steel 304 |
| 2 | Side element (2 pcs) | stainless steel 304 |
| 3 | Char | stainless steel 304 |
| 4 | Ball seal | PTFE |
| 5 | Stem seal | PTFE |
| 6 | bushing | stainless steel 304 |
| 7 | Stem | stainless steel 304 |
| 8 | Washer | stainless steel |
| 9 | Nut | steel A2-70 |
| 10 | Bolt | steel A2-70 |
| 11 | Handle | stainless steel |
| 12 | Handle coating | PVC |
| 13 | Nut | steel A2-70 |
Sketch of dimensions and dimensions of ball valves DNOVA BV3131P(3pc)-FP-W-ISO-H LONG full bore
Technical actuators DNOVA QT2-N-xEM-O1-x-U1m
| Type of actuator | quarter-turn |
| Engine type | asynchronous |
| Angle of rotation, ° | 90±5 |
| Housing material | aluminum alloy, epoxy powder coated |
| Shaft material | alloy steel |
| Power supply voltage | 24V/AC, 50Hz |
| Cable entry | sealing gland 2xM18 |
| Connection type | ISO 5211 |
| Self-locking device | self-locking worm and worm gear transmission |
| Automatic shut-off in open, closed and jammed positions | 2 limit switches + 2 additional switches (dry contact); |
| Thermal protection | On at 120°C ±5°C; Off at 97°C ±5°C |
| Insulation class | F |
| Mechanical output shaft rotation limitation | 2 external adjustable stops |
| Enclosure protection class | IP67 |
| Noise level, dB | ≤ 50 |
| Heater power, W | 5 |
| Ambient temperature, °C | -20 to +70 |
| Ambient humidity | ≤95% (25°C) |
| Explosion protection of the enclosure | no |
Dimensions and dimensions of actuators DNOVA QT-N-EM-O1-24VAC-U1 24V
| Model | 003EMT |
| L | 123 |
| H | 115 |
| A | 101 |
| B | 98 |
| C | 74 |
| D | 49 |
| E | 34.5 |
| F | 35 |
| G | 5 |
| Stem size, square | 14x14 |
| ISO 5211 | F05/F07 |
Sketch of overall dimensions of actuators DNOVA QT2-N-xEM-O1-x-U1
Device diagram of actuators DNOVA QT-N-xEM-O1-x-U1 HARK
| № | Name |
| 1 | Position indicator |
| 2 | Top cover |
| 3 | Control board |
| 4 | Capacitor |
| 5 | Pressure cams |
| 6 | Output shaft with worm wheel |
| 7 | Case |
| 8 | Output shaft stroke limiters |
| 9 | Worm shaft |
| 10 | Electric motor |
| 11 | Gearbox |
| 12 | Gearbox cover |
Device diagram of actuators DNOVA QT2-N-xEM-O1-x-U1
- Body material
- Stainless steel AISI 304
- Maximum allowable temperature
- #ИМЯ?
- Connection type
- For welding
- Control type
- Electrically driven
- Operating environment
- Water, Steam, Petroleum Products, Neutral Media, and Gaseous Media
- Applications
- Water Supply
- Type of seal
- PTFE
- Voltage
- 24 V
- Explosion-proof
- No
- Torque
- 3 Nm
- Limit switches
- Yes
- Actuator model
- QT-N-003EM-O1-24VDC-U1 HARK
- 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