Description
The wedge gate valve is designed for installation on a pipeline as a shut-off device in water supply systems and the chemical industry.
Operating principle: The wedge, connected to the spindle, is lowered or raised depending on the direction of rotation of the handwheel, closing or opening the flow section of the gate body.
The multi-turn electric drive is designed to automate the process of controlling industrial valves, as well as to determine the position of the shut-off element of the valve.
The operating principle of the electric drive is to convert the electrical signal coming from the control device into rotational movement of the output shaft.
Technical characteristics of wedge gate valves DNOVA GAIR GVWR2121M-2W-F-OST DN50-250 Ru16 flanged, with OST flange, bare stem, for electric drive:
| Characteristic | Meaning |
| Gate valve type | Wedge |
| Diameter | 50-250 mm |
| Nominal pressure | 16 bar |
| Working medium | water, steam, petroleum products, gaseous media |
| Working environment temperature | from -29 to +425°C |
| Application | water supply, heat supply |
| Connection type | flanged |
| Control type | electric drive |
Electric actuators DNOVA MT-N-xEM-O2-220VAC-U1 five-cam
Technical characteristics of electric drives DNOVA MT-N-xEM-O2-220VAC-U1 five-cam:
| Characteristic | Meaning |
| Electric drive type | multi-turn |
| Supply voltage | 220 V |
| Ambient temperature | from -30°C to +70°C |
| Degree of protection of the case | IP67 |
| OST flange type | type A, type B |
| Country of origin | China |
Sketch of dimensions of wedge gate valves DNOVA GAIR GVWR2121M-2W-F-OST DN50-250 Ru16 flanged, with OST-flange, bare stem, under electric actuator
Overall and installation dimensions of wedge gate valves DNOVA GAIR GVWR2121M-2W-F-OST DN50-250 Ru16 flanged, with OST flange, bare stem, for electric drive:
| Diameter | L, mm | D, mm | D1, mm | D2, mm | b, mm | f, mm |
| DN50 | 180 | 160 | 125 | 102 | 17 | 3 |
| DN80 | 210 | 195 | 180 | 135 | 20 | 3 |
| DN100 | 230 | 215 | 180 | 158 | 20 | 3 |
| DN250 | 450 | 405 | 355 | 320 | 30 | 3 |
Sketch of dimensions of electric drives DNOVA MT-N-xEM-O2-220VAC-U1 five-cam
Overall and installation dimensions of DNOVA MT-N-xEM-O2-220VAC-U1 five-cam electric drives:
| Model | W, mm | H, mm | L, mm |
| MT-N-010EM-02-x-U1 | 334 | 258 | 411 |
| MT-N-020EM-02-x-U1 | 365 | 290 | 470 |
| MT-N-030EM-02-x-U1 | 365 | 290 | 470 |
| MT-N-045EM-02-x-U1 | 433 | 337 | 564 |
| MT-N-060EM-02-x-U1 | 433 | 337 | 564 |
Sketch of materials of wedge gate valves DNOVA GAIR GVWR2121M-2W-F-OST DN50-250 Ru16 flanged, with OST flange, bare stem, for electric drive
Materials of parts of wedge gate valves DNOVA GAIR GVWR2121M-2W-F-OST DN50-250 Ru16 flanged, with OST flange, bare stem, for electric drive:
| No. | Part name | Material |
| 1 | Frame | Steel 25L + Steel 13Cr |
| 2 | Wedge | Steel 25L + Steel 13Cr |
| 3 | Stock | ASTM A182 F6a steel |
| 4 | Bolt | ASTM A193 B7 steel |
| 5 | screw | ASTM A194 2H steel |
| 6 | Pad | stainless steel+graphite |
| 7 | Lid | steel 25L |
| 8 | Spindle seal | flexible graphite |
| 9 | Pin | ASTM A29 1045 steel |
| 10 | Gland packing | carbon steel |
| 11 | screw | ASTM A194 2H steel |
| 12 | Bolt | ASTM A193 B7 steel |
| 13 | Bracket | steel 25L |
| 14 | Bearing | - |
| 15 | Cuff | - |
| 16 | Stem nut | brass |
| 17 | Casing | ASTM A29 1035 steel |
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.