How it works
Multi-turn handwheel
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
Gate gate valve with through knife DNOVA GVKRT3431N-2W-Fb-S DN50 Ru16 carbon steel, interflanged with hand wheel is designed for installation on the pipeline as a shut-off device and regulating the flow of medium with a high concentration of solid particles. It can also be used in gravity feed systems of solid and powdery substances, as the cutting edge of the knife allows cutting off high density flows.
Main technical characteristics of gate valves with through knife DNOVA GVKRT3431N-2W-Fb-S, body material - carbon steel A216, knife material - stainless steel AISI 304, seal - NBR, handwheel
| Nominal diameter DN, mm | 50÷200 |
| Nominal pressure of the gate valve, bar |
DN50÷100 – 16 DN200 – 10 |
| Temperature of the working medium t, °C | from -30 to +110 |
| Working medium | liquids with a suspended solids content of up to 20%; viscous media, powders, cellulose and wood pulp (pulp concentration from 5% to 20%), waste paper, ash and highly concentrated sludge |
| Direction of medium flow | bilateral |
| Tightness class | B |
| Control type | steering wheel |
| Connection to the pipeline | wafer |
| Nominal pressure of flanges, bar | DN50÷100 – 10/16 DN200 – 10 |
| Body material | carbon steel WCB |
| Gate material | stainless steel AISI 304 |
| Application areas | pulp and paper and mining industries; areas where equipment operability is required at high concentrations of solids in the working environment |
| Average service life, years | 10 |
| Average resource, closing/opening cycles |
20 000÷50 000 |
Dimensions and installation dimensions of gate valves with through knife DNOVA GVKRT3431N-2W-Fb-S, body material - carbon steel A216, knife material - stainless steel AISI 304, seal - NBR, handwheel
| Model | Size | |||||||
| DN | L | D | D1 | D2 | H1 | N-Th | T | |
| DN50 | 50 | 48 | 165 | 125 | 99 | 283 | 4 – M16 | 12 |
| DN80 | 80 | 51 | 200 | 160 | 132 | 385 | 8 – M16 | 12 |
| DN100 | 100 | 51 | 220 | 180 | 156 | 447 | 8 – M16 | 12 |
| DN200 | 200 | 70 | 340 | 295 | 266 | 721 | 8 – M20 | 16 |
Dimensional sketch of gate valves with through knife DNOVA GVKRT3431N-2W-Fb-S, body material - carbon steel A216, knife material - stainless steel AISI 304, seal - NBR, handwheel
Materials of through-blade gate valves DNOVA GVKRT3431N-2W-Fb-S, body material - carbon steel A216, knife material - stainless steel AISI 304, seal - NBR, handwheel
| № | Name | Material |
| 1 | Case | Carbon steel A216 Gr WCB/25L |
| 2 | Schieber | Carbon steel AISI/SS 304/08X18H10 |
| 3 | Guide seal | NBR |
| 4 | Guide seal | NBR |
| 5 | Rack | steel Q235 |
| 6 | Stem | steel 2Cr13 |
| 7 | Head end of the rack | cast iron GGG40 |
| 8 | Nut | brass |
| 9 | Helm | cast iron GGG40 |
| 10 | Valve stem connection unit | steel Q235 |
Material sketch of gate valves with through knife DNOVA GVKRT3431N-2W-Fb-S, body material - carbon steel A216, knife material - stainless steel AISI 304, seal - NBR, handwheel
- Body material
- carbon steel A216
- Stopper Material
- stainless steel AISI 304
- Maximum allowable temperature
- 110 °C
- Connection type
- Compact flanged
- Control type
- Handwheel
- Gate valve type
- Knife Gate Valve
- Nominal pressure
- 16 bar
- Type of seal
- NBR
- 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