How it works
Knife gate
The number that matters
Nominal pressure
10bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
The gate valve is designed for installation on a pipeline as a shut-off device and for regulating the flow of the working medium in water supply systems (except for drinking water supply systems) and the chemical industry. The principle of operation of the gate valve is to move the gate (knife) perpendicular to the flow of the medium. When the diameter of the nominal passage of the pipeline is completely blocked, the flow is stopped; when it is partially blocked, it is adjusted.
Technical parameters of gate valves DNOVA GVKN1331E-2W-Fb-ISO DN300 PN10 interflange, with ISO flange and round stem, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, control - for electric drive, WENZ
| Nominal diameter DN, mm | 300 |
| Nominal pressure of the gate valve, bar | 10 |
| Temperature of the working medium t, °C | from -30 to +110 |
| Working medium | water, slightly contaminated liquids with suspended particles content up to 5% |
| Direction of medium flow | double-sided |
| Tightness class | A |
| Control type | under the drive |
| Connection to the pipeline | interflange |
| Nominal pressure of flanges, bar | 10 |
| Body material | cast iron GGG40 |
| Gate material | stainless steel AISI 304 |
| Seal material | EPDM |
| Application areas | heating and water supply systems (except drinking water supply systems), industrial pipelines |
| Average service life, years | 10 |
| Average resource, cycles closing/opening | 20 000 ÷ 50 000 |
Dimensions and sizes of gate valves DNOVA GVKN1331E-2W-Fb-ISO DN300 PN10 wafer, with ISO flange and round stem, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, control - for electric drive, WENZ:
| Model | DN300 |
| DN, mm | 300 |
| L, mm | 76 |
| D, mm | 445 |
| D1, mm | 400 |
| D2, mm | 370 |
| H1 mm | 815 |
| N-Th | 12–M20 |
| T, mm | 16 |
| Ød, mm | 23 |
| ⬤, mm | 4 |
| 〇, mm | 8 |
| D3, mm | 125 |
| D4, mm | 102 |
| D5, mm | 70 |
| n-Ød, mm | 4 – Ø12 |
| L1, mm | 45 |
| A, mm | 6 |
| B, mm | 16.5 |
Sketch of parts and materials of gate valves DNOVA GVKN1331E-2W-Fb-ISO DN300 PN10 interflange, with ISO flange and round stem, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, control - for electric drive, WENZ
Table of parts and materials of gate valves DNOVA GVKN1331E-2W-Fb-ISO DN300 PN10 wafer, with ISO flange and round stem, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, control - for electric drive, WENZ:
| Item No. | Details | Material |
| 1 | Frame | cast iron GGG40 |
| 2 | Saddle seal | EPDM |
| 3 | Gate | Stainless steel SS304 |
| 4 | Guide seal | PTFE |
| 5 | Sealing | PTFE |
| 6 | Gland packing | WCB steel |
| 7 | screw | brass |
| 8 | Stock | steel 2Cr13 |
| 9 | Rack | steel Q235 |
| 10 | Top plate of the rack | cast iron QT450 |
| 11 | Bearing | steel GCr15 |
| 12 | Sealing ring | NBR |
Sketch of parts and materials of gate valves DNOVA GVKN1331E-2W-Fb-ISO DN300 PN10 interflange, with ISO flange and round stem, body - cast iron GGG40, gate - stainless steel 304, seal - EPDM, control - for electric drive, WENZ
- Body material
- Cast iron GGG40
- Stopper Material
- stainless steel AISI 304
- Maximum allowable temperature
- 110 °C
- Connection type
- Compact flanged
- Control type
- Stem only
- Gate valve type
- Knife Gate Valve
- Nominal pressure
- 10 bar
- Type of seal
- EPDM
- 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.