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.;
Main technical characteristics of gate valves DNOVA GVKR1331M-1W-Fb-S 16 bar
| Nominal diameter DN, mm | 50 ÷ 200 |
| Nominal pressure of the gate valve, bar | 16 |
| Temperature of the working medium t, ⁰C | from -20 to +250 |
| Working medium | wastewater, pulp, viscous, powder and crystallized media, acids |
| Flow direction | one-sided |
| Tightness class | B |
| Control type | steering wheel |
| Connection to the pipeline | interflange |
| Nominal pressure of flanges, bar | DN50÷150 – 10/16 DN200 – 16 |
| Body material | cast iron GGG40 |
| Gate material | stainless steel AISI 304 |
| Seal material | metal |
| Application areas | heating and water supply systems, industrial pipelines |
Overall and installation dimensions of gate valves DNOVA GVKR1331M-1W-Fb-S 16 bar
| DN | L | D | d | H1 | N - Th | Weight, kg |
| 50 | 48 | 165 | 18 | 260 | 4 – M16 | 7 |
| 65 | 48 | 185 | 18 | 292 | 4 – M16 | 8 |
| 80 | 51 | 200 | 18 | 320 | 8 – M16 | 10 |
| 100 | 51 | 220 | 18 | 358 | 8 – M16 | 12 |
| 125 | 57 | 250 | 18 | 395 | 8 – M16 | 16 |
| 150 | 57 | 285 | 23 | 450 | 8 – M20 | 21 |
| 200 | 70 | 340 | 23 | 532 | 12 – M20 | 31 |
Sketch of gate valves DNOVA GVKR1331M-1W-Fb-S 16 bar
Basic materials of gate valve parts DNOVA GVKR1331M-1W-Fb-S 16 bar
| № | Name | Material |
| 1 | Case | cast iron GGG40 |
| 2 | Schieber (knife) | steel SS304 |
| 3 | Guide pad | PTFE |
| 4 | Sealing | PTFE |
| 5 | Gland packing | steel WCB |
| 6 | staple | steel Q235 |
| 7 | pin | steel 45 |
| 8 | Patron | steel WCB |
| 9 | Stem | steel 2Cr13 (SS420) |
| 10 | Upper bracket | cast iron GGG40 |
| 11 | Support | steel GCr15 |
| 12 | Nut | brass |
| 13 | Cover | steel Q235 |
| 14 | Helm | cast iron GGG40 |
| 15 | Wedge | cast iron GGG40 |
Detail sketch of slide gate valves DNOVA GVKR1331M-1W-Fb-S 16 bar
Specifications
Delivery
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