In detail
What it is made of
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
Gate gate valve with through knife DNOVA GVKRT3431N-2W-Fb-2PDu100 Ru16 carbon steel, interflanged with pneumatic actuator 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-2P, body material - carbon steel A216, knife material - stainless steel AISI 304, seal - NBR, pneumatic actuator
| Nominal diameter DN, mm | 100 ÷ 250 |
| Nominal pressure of the gate valve, bar | DN100 – 16 DN150÷250 – 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 | pneumatic cylinder |
| Connection to the pipeline | wafer |
| Nominal pressure of flanges, bar | DN100÷150 – 10/16 DN200÷250 – 10 |
| Body material | carbon steel WCB |
| Gate material | stainless steel AISI 304 |
| Seal material | NBR |
| Application areas | pulp and paper and mining industries; areas where the operability of equipment is required in 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-2P, body material - carbon steel A216, knife material - stainless steel AISI 304, seal - NBR, pneumatic actuator
| Model | Size | ||||||||
| DN | L | D | D1 | D2 | H1 | G | N-Th | T | |
| DN100 | 100 | 51 | 220 | 180 | 156 | 428 | DN15 | 8-M16 | 12 |
| DN150 | 150 | 57 | 285 | 240 | 211 | 553 | DN20 | 8-M20 | 14 |
| DN200 | 200 | 70 | 340 | 295 | 266 | 727 | DN20 | 8-M20 | 16 |
| DN250 | 250 | 70 | 395 | 350 | 319 | 880 | DN20 | 12-M20 | 16 |
Materials of through-blade gate valves DNOVA GVKRT3431N-2W-Fb-2P, body material - carbon steel A216, knife material - stainless steel AISI 304, seal - NBR, pneumatic actuator
| № | Name | Material |
| 1 | Case | Stainless steel A216 Gr WCB/25L |
| 2 | Schieber | Stainless steel AISI/SS 304/08X18H10 |
| 3 | Guide seal | NBR |
| 4 | Guide seal | NBR |
| 5 | Rack | steel Q235 |
| 6 | Stem | steel 45 |
| 7 | Head end of the rack | cast iron GGG40 |
| 8 | Pneumatic cylinder | - |
| 9 | Rod connection unit | steel Q235 |
| 10 | Solenoid valve | - |
| 11 | Filter | - |
Material sketch of gate valves with through knife DNOVA GVKRT3431N-2W-Fb-2P, body material - carbon steel A216, knife material - stainless steel AISI 304, seal - NBR, pneumatic actuator
- Body material
- carbon steel A216
- Stopper Material
- stainless steel AISI 304
- Maximum allowable temperature
- 110 °C
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- 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