In detail
What it is made of
How it works
Multi-turn handwheel
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 to be installed on the pipeline as a shut-off device and regulate the flow of medium in water supply systems (except drinking water supply systems) and chemical industry.
The principle of operation of the gate valve is to move the gate (knife) perpendicular to the flow of medium. When the diameter of the nominal bore of the pipeline is completely blocked, the flow is stopped, and when it is partially blocked, the flow is regulated.
Overall and installation dimensions DNOVA GVKR3131M-1W-Fb-S knife gate gate valves, body material - stainless steel AISI 304, knife material - stainless steel AISI 304, seal - metal, handwheel
| DN | L, mm | D, mm | D1, mm | D2, mm | D0, mm | H1, mm | T, mm | d, mm | ●, mm | O, mm | N-Th, mm |
| 50 | 48 | 165 | 125 | 99 | 180 | 260 | 12 | 18 | 4 | 0 | 4-M16 |
| 80 | 51 | 200 | 160 | 132 | 200 | 320 | 12 | 18 | 4 | 4 | 8-M16 |
| 100 | 51 | 220 | 180 | 156 | 240 | 358 | 12 | 18 | 4 | 4 | 8-M16 |
| 125 | 57 | 250 | 210 | 184 | 260 | 395 | 12 | 18 | 4 | 4 | 8-M16 |
| 200 | 70 | 340 | 295 | 266 | 300 | 532 | 16 | 23 | 4 | 4 | 8-M20 |
| 250 | 70 | 395 | 350 | 319 | 320 | 670 | 18 | 23 | 6 | 6 | 12-M20 |
Materials DNOVA GVKR3131M-1W-Fb-S knife gate valves, body material - stainless steel AISI 304, knife material - stainless steel AISI 304, seal - metal, handwheel:
| № | Part name | Material |
| 1 | Body | stainless steel SS304 |
| 2 | Schieber | stainless steel SS304 |
| 3 | Guide seal | PTFE |
| 4 | Packing | PTFE |
| 5 | Gland | stainless steel SS304 |
| 6 | Rack | steel Q235 |
| 7 | Pin | steel 45 |
| 8 | Patron | steel WCB |
| 9 | Rod | stainless steel SS304 |
| 10 | Upper rack assembly | cast iron GGG40 |
| 11 | Bearing | steel GCr15 |
| 12 | Nut | brass |
| 13 | Cover | Q235 steel |
| 14 | Handwheel | GGG40 cast iron |
| 15 | Wedge | 316L stainless steel |
- Body material
- Stainless steel AISI 304
- Stopper Material
- stainless steel AISI 304
- Maximum allowable temperature
- 500 °C
- Connection type
- Compact flanged
- Control type
- Handwheel
- Gate valve type
- Knife Gate Valve
- Nominal pressure
- 10 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