How it works
Knife gate
The number that matters
Nominal pressure
16bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
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 the gate valve DNOVA GVK3131M-1W-Fb-2P, wafer type, body material - stainless steel AISI 304, with pneumatic actuator
| Nominal diameter DN, mm | 50 ÷ 200 |
| Nominal pressure of the gate valve, bar | 16 |
| Temperature of the working medium t, °C | from -20 to +250 |
| Working medium | water, slightly contaminated liquids with suspended particles content up to 5% |
| Direction of medium flow | one-sided |
| Tightness class | A |
| Control type | pneumatic cylinder |
| Connection to the pipeline | wafer |
| Nominal pressure of flanges, bar | DN50÷150 – 10/16 DN200 – 16 |
| Body material | stainless steel AISI 304 |
| Gate material | stainless steel AISI 304 |
| Seal material | metal |
| Application areas | heating and water supply systems, industrial pipelines. |
| Service life, years | 15 |
Overall and installation dimensions of the gate valve DNOVA GVK3131M-1W-Fb-2P, wafer type, body material - stainless steel AISI 304, with pneumatic actuator
Valve sketch DNOVA GVK3131M-1W-Fb-2P, wafer type, body material - stainless steel AISI 304, with pneumatic actuator
| DN | L | D | D1 | D2 | H | H1 | N - Th | Weight |
| 50 | 48 | 165 | 125 | 99 | 430 | 510 | 4 – M16 | 8 |
| 65 | 48 | 185 | 145 | 118 | 470 | 560 | 4 – M16 | 9 |
| 80 | 51 | 200 | 160 | 132 | 543 | 640 | 8 – M16 | 9,5 |
| 100 | 51 | 220 | 180 | 156 | 592 | 700 | 8 – M16 | 11 |
| 125 | 57 | 250 | 210 | 184 | 688 | 810 | 8 – M16 | 13 |
| 150 | 57 | 285 | 240 | 211 | 780 | 920 | 8 – M20 | 20 |
| 200 | 70 | 340 | 295 | 266 | 923 | 1090 | 12 – M20 | 31 |
Construction and materials of the gate DNOVA GVK3131M-1W-Fb-2P, wafer type, body material - stainless steel AISI 304, with pneumatic actuator
Material sketch of valve parts DNOVA GVK3131M-1W-Fb-2P, wafer type, body material - stainless steel AISI 304, with pneumatic actuator
| № | Part name | Material |
| 1 | Body | Steel 304 |
| 2 | Disk | Steel 304 |
| 3-4 | Bolt / Nut | Steel 304 |
| 5 | padding | PTFE |
| 6 | Gland packing | Steel 304 |
| 7-9 | Bolt / Nut | Steel 304 |
| 10 | Clamping chuck | Steel 45 |
| 11 | Rack | Steel A3 |
| 12 | Support | Steel A3 |
| 13 | Pneumatic actuator | - |
| 14 | Seat seal | Steel 304 |
- Body material
- Stainless steel AISI 304/1.4301
- Stopper Material
- Stainless steel AISI 304/1.4301
- Maximum allowable temperature
- 250 °C
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- Gate valve type
- Knife Gate Valve
- Nominal pressure
- 16 bar
- Type of seal
- Metal
- 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