Description
Knife Gate Valve DNOVA is intended for installation on a pipeline as a shut-off device and for regulating the flow of the working medium in water supply systems and the chemical industry. 1.3. The principle of operation of the gate valve is to move the gate (knife) perpendicular to the flow of the medium. When the nominal diameter of the pipeline is completely blocked, a stop occurs flow, with partial flow - adjustment. The tightness of the gate valve in the closed state is ensured by pressing the gate valve to the seal under the influence of the pressure of the working medium.
General parameters of gate valves DNOVA GVKN1331E-2W-Fb-S PN16
| Nominal diameter DN, mm | 50 - 300 |
| Working pressure PN, bar | 16 |
| Temperature of working environment t, ⁰C | from -20 to +120 |
| Working environment | water, slightly contaminated liquids with suspended particles content up to 5% |
| Direction of flow of the medium | bilateral |
| Control type | steering wheel |
| Connection to the pipeline | interflange |
| Body material |
GGG40 (ductile iron with spheroidal graphite) |
| Application areas | heating and water supply systems, industrial pipelines. |
Sketch of the dimensions of the gate valves DNOVA GVKN1331E-2W-Fb-S PN16
Dimensions of gate valves DNOVA GVKN1331E-2W-Fb-S PN16
| D.N. | L | D | D1 | D2 | H | H1 | N - Th | Weight, kg |
| mm | ||||||||
| 50 | 48 | 165 | 125 | 99 | 280 | 360 | 4 – M16 | 7 |
| 65 | 48 | 185 | 145 | 118 | 300 | 390 | 4 – M16 | 8.5 |
| 80 | 51 | 200 | 160 | 132 | 322 | 420 | 8 – M16 | 10 |
| 100 | 51 | 220 | 180 | 156 | 382 | 490 | 8 – M16 | 12 |
| 125 | 57 | 250 | 210 | 184 | 437 | 560 | 8 – M16 | 18 |
| 150 | 57 | 285 | 240 | 211 | 490 | 630 | 8 – M20 | 23 |
| 200 | 70 | 340 | 295 | 266 | 573 | 740 | 12 – M20 | 31 |
| 300 | 76 | 460 | 410 | 370 | 810 | 1030 | 12 – M24 | 62 |
Sketch of materials of gate valves DNOVA GVKN1331E-2W-Fb-S PN16
Specification of materials of gate valves DNOVA GVKN1331E-2W-Fb-S PN16
| Item No. | Part name | Material |
| 1 | Frame | cast iron GGG40 |
| 2 | Sealing | EPDM |
| 3 | Sealing | EPDM |
| 4 | U-profile seal | steel A3 |
| 5 | Slide (knife) | steel 304 |
| 6 | Stuffing | PTFE |
| 7 | Hairpin | steel A3 |
| 8 | Screw | steel A3 |
| 9 | Casing | WCB steel |
| 10 | screw | steel A3 |
| 11 | Screw | steel A3 |
| 12 | screw | cast iron QT500 |
| 13 | Rack | steel A3 |
| 14 | Stock | steel 2Cr13 |
| 15 | Steering wheel | cast iron QT500 |
| 16 | screw | steel A3 |
Specifications
Delivery
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