In detail
What it is made of
How it works
Multi-turn electric actuator
Rising-stem wedge gate
Construction
Parts and materials
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.
Multi-turn electric drives are used to control various pipeline valves. The drives ensure reliable movement and retention of the shut-off element of the TPA in a given position, with a torque of 50 to 5000 Nm.
Multi-turn general-purpose industrial electric drives GZ are used in various sectors of public utilities, water supply, chemical, petrochemical industries, and the oil and gas complex.
Technical characteristics of wedge gate valves 30nzh941nzh DNOVA GAIR GVWR2424M-2W-F-OST DN50 Ru16 flanged, with OST-flange, bare stem, under electric actuator:
| Characteristic | Meaning |
| Gate valve type | Wedge |
| Diameter | 50 mm |
| Nominal pressure | 16 bar |
| Wednesday | 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 drives GZ 380V
Technical characteristics of electric drives GZ 380V:
| Characteristic | Meaning |
| Electric drive type | multi-turn |
| Supply voltage | 380 V |
| Ambient temperature | from -45°C to +70°C |
| Degree of protection of the case | IP65 |
| OST flange type | type A, type B |
Sketch of dimensions of wedge gate valves 30nzh941nzh DNOVA GAIR GVWR2424M-2W-F-OST DN50 Ru16 flanged, with OST-flange, bare stem, under electric actuator
Overall and installation dimensions of wedge gate valves 30nzh941nz DNOVA GAIR GVWR2424M-2W-F-OST DN50 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 | 100 | 16 | 3 |
Sketch of the dimensions of the electric drives GZ 380V
Overall and installation dimensions of electric drives GZ 380V:
| Model | W, mm | H, mm | L, mm |
| GZ-A.100/24 | 371 | 309 | 447 |
| GZ-B.300/24 | 405 | 369 | 571 |
Material sketch of wedge gate valves 30nzh941nzh DNOVA GAIR GVWR2424M-2W-F-OST DN50 Ru16 flanged, with OST-flange, bare stem, under electric actuator
Materials of parts of wedge gate valves 30nz941nz DNOVA GAIR GVWR2424M-2W-F-OST DN50 Ru16 flanged, with OST flange, bare stem, for electric drive:
| No. | Part name | Material |
| 1 | Frame | steel 12x18H9TL |
| 2 | Wedge | steel 12x18H9TL |
| 3 | Wedge fastening | steel 12x18H9TL |
| 4 | Stock | steel 12x18H9TL |
| 5 | Pad | steel 12x18H9TL + graphite |
| 6 | Lid | steel 12x18H9TL |
| 7 | Hairpin | stainless steel 201 |
| 8 | screw | stainless steel 201 |
| 9 | Spindle seal | expanded graphite |
| 10 | Gland seal | stainless steel 201 |
| 11 | Bracket | steel 12x18H9TL |
| 12 | Stem nut | copper alloy ZCuAl10fe3 |
- Body material
- Alloy steel
- Connection type
- Flanged
- Type of seal
- Metal
- Disc material
- Alloy steel
- Limit switches
- Yes
- 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.